Accessories

In certain disciplines, the single-ring drivetrain reigns supreme. Championing simplicity, strength and durability, the SRAM RED 1 AXS power meter meets the demands of triathletes, time trialists and cyclocross racers. The power meter features improved aerodynamics thanks to direct mount aero chainrings with fully integrated power, and the tighter gearing range is perfect for racing and flatter terrains. - Single-ring drivetrain simplifies functionality - 48T and 50T variants have fully integrated power into a direct mount aero chainring - 36-46T variants have spider-based power - Chainrings can be easily changed without requiring recalibration of the power meter - Power readings are accurate within +/-1.5% and aren't affected by climate conditions during a ride - Power balance measures left and right legs separately - SRAM X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control - Laser-etched chainring finish is more durable - DUB bottom bracket adds durability and simplicity - Non-aero chainrings can be installed with a single tool, making gearing changes a breeze - Bottom bracket not included - BB Compatibility: All SRAM Road DUB BBs - BB Spindle Interface: DUB - Chainring material: Aluminum - Crank arm material: Carbon - Power Meter Type: ANT+ and BLE

- AXS enabled for easy monitoring and firmware upgrades - Fully integrated power meter into a direct mount chainring - Power readings are accurate within +/-1.5% and aren't affected by climate conditions during a ride - Power balance measures left and right legs separately - SRAM X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control - Laser-etched chainring finish is more durable - 8-bolt direct mount compatibility only to RED and Force eTap AXS cranks. - Speeds: 12 - Chainring material: Aluminum - Power Meter Type: ANT USB

The SRAM RED AXS power meter breaks with tradition — and breaks through to new levels of performance. SRAM reengineered road gearing: reducing front chainring size and adding more range to the rear cassette. They also maintained a 13-tooth delta on all chainring pairs, ensuring precise shifting for any setup. This results in more useful gearing and better shifting across all configurations. These power meters are also designed with Quarq's premier DZero power measurement technology fully integrated into the crankset. Welcome to the pinnacle of the power meter. - X-Range gearing technology gives you more range and a smoother gear progression, so you're always in the right gear - Integrated power measurement - Power meter is fully integrated into the chainring set for lighter weight - Power readings are accurate within +/-1.5% and aren't affected by climate conditions during a ride - Power balance measures left and right legs separately - Improved front shifting performance for crisp and accurate front shifts - Unique chainring shape results in a lighter weight, stiffer, more durable crankset - Integrated chainring design significantly reduces weight - DUB bottom bracket adds durability, simplicity and broad compatibility - Speeds: 12 - BB Compatibility: All SRAM Road DUB BBs - BB Spindle Interface: DUB - Chainring material: Aluminum - Crank arm material: Carbon - Power Meter Type: ANT+ and BLE - Bottom bracket not included

Every innovation in Quarq's DZero platform represented the 10+ years of Quarq's advances in power meter technology. This same platform is now combined with XX1 Eagle DUB CARBON TUNED crankset—lightest, stiffest, and strongest to date, and X-SYNC 2 chainring—providing significantly quieter performance with better mud clearing and extraordinary durability. Ready to power every ride. - Bluetooth low energy technology and ANT+ wireless data transfer - MagicZero: automatically checks and recalibrates your power meter as you ride (no need to manually calibrate) - AxCad: no cadence magnet required - 10K Temperature Compensation - Battery: CR2032, 200-hour battery life, change without tools - OmniCal: swap chainrings without affecting accuracy - 2-year warranty - IPX7 waterproof rating - Accuracy: within 1.5%, measuring both legs

The BRK-1 is our ultimate mobile mechanic tool kit. This tailored selection of 100 professional-grade bike tools was carefully chosen by our team of experienced mechanics, with a comprehensive offering of the tools you'll need to adjust, replace, diagnose, and repair most components on a bicycle. Whether you're working in a professional race pit, neutral support tent at a local event, or the trailhead parking lot, you'll have the tools you need — and none of the tools you don't. The BRK-1 was designed around our BX-3 Rolling Big Blue Box, a professional-grade toolbox for the professional bike mechanic. When open, the BX-3 is a neatly-organized display of your tool collection, featuring dual-sided pallets with hundreds of custom-designed loops and pockets. The BX-3 has room to grow your tool collection even when fully loaded with the contents of the BRK-1. When closed, the BX-3 is built for travel, with a tough weather-resistant outer shell, integrated wheels and an extendable handle. - BX-3 Dimensions: 23.4"" x 17.3"" x 9.3"" (59.5 cm x 44 cm x 23.5 cm) - Weight: 48.5 lbs (22 kg) NOTE: Tool kit contents are subject to change.

A professional level tool set designed and built for portability. The EK-3 is perfect for team and event mechanics or the home mechanic who wants the ultimate portable tool kit. Neatly organized in Park Tool's world-famous BX-2.2 Blue Box Tool Case, this tool kit features 56 of their best tools to do hundreds of repair and maintenance tasks. Plus, the bomb-proof Blue Box features pockets, pouches, straps and open space to add more tools and parts! Kit Includes: - ATD-1.2 Adjustable Torque Driver - AWS-1 Three-Way Hex Wrench Set: 4, 5, 6mm - BBT-9 Bottom Bracket Tool for 16-Notch External Bearing Cups - BBT-32 Bottom Bracket Tool for 20 Notch Shimano and ISIS Drive - BO-2 Bottle Opener - CC-4 Chain Checker - CN-10 Professional Cable and Housing Cutter - CNW-2 Chainring Nut Wrench - CP-1.2 Cassette Pliers - CT-3.3 Chain Tool - CWP-7 Compact Universal Crank Puller - DCW-1 Double-Ended Cone Wrench: 13/14mm (2) - DCW-2 Double-Ended Cone Wrench: 15/16mm (2) - DCW-3 Double-Ended Cone Wrench: 17/18mm - DSD-2 Derailleur Screwdriver: Cross Tip - DSD-4 Derailleur Screwdriver: Flat Blade - DT-2 Rotor Truing Fork - FR-5.2H Cassette Lockring Tool with Handle - GSC-1 GearClean Brush - HCW-15 36mm/32mm Headset Wrench - HMR-8 Shop Hammer - HT-8 8mm Hex Tool - HXS-1.2 Hex Wrench Set - LP-7 Utility Pliers - MLP-1.2 Master Link Pliers - MW-8 Metric Wrench: 8mm - MW-9 Metric Wrench: 9mm - MW-10 Metric Wrench: 10mm - PAW-12 12" Adjustable Wrench - PW-4 Professional Pedal Wrench - RR-12 Tape Measure - SW-0 Precision Spoke Wrench: .127" - SW-2 Precision Spoke Wrench: .136" - SZR-1 Shop Scissors - TL-6.2 Steel Core Tire Levers - TWS-1 Torx Compatible Wrench Set

- The 1.4" Power Sapphire lens harvests the sun's energy, giving you more power and time between charges - AutoSelect mode uses SatIQ technology to dynamically determine the GPS mode necessary to maximize battery life without compromising positional accuracy - The rugged, lightweight design won't slow you down, and the light UltraFit nylon band provides a secure, comfortable fit during all of your activities - Navigation tools help you find your way with preloaded TopoActive and ski maps - A superbright LED flashlight (twice as bright as the fenix 7X multisport GPS watch) offers variable intensities with a strobe that matches your running cadence; red safety light mode helps you keep an eye on your immediate surroundings while running at night - Battery performance with solar charging: up to 46 days in smartwatch mode and up to 150 hours in GPS mode

Rally RK200 is tested to the extreme, so you can ride there too. This dual-sensing power meter delivers reliable power measurements and is easy to transfer between bikes, no matter what bike you're on or where you're riding. - Impeccably Designed Pedal—Rally power meters have undergone rigorous testing to ensure total reliability. Featuring a superior design with sensors housed inside, these sleek pedals install like any pedal. And they're quick to transfer between bikes. - Advanced Cycling Dynamics—In addition to total power and cadence, Rally RK200 measures much more. These metrics help you tailor your training around your specific weaknesses and strengths to help you improve. - Left/Right Balance—Measure power from your left leg versus power from your right leg to get a better look at how symmetrically you're producing power. - Seated vs. Standing—Track the amount of time you spend in each position and gauge position effectiveness. - Power Phase—Get a clear look at where you're producing power in the pedal stroke. - Platform Center Offset—Ensure proper cleat position by keeping track of where power is applied on the pedal. - Cleat Compatibility—For a comfortable ride, these pedals are designed with your favorite LOOK KEO cleats in mind. - Transferable Spindle—From road to gravel to cyclocross and much more, keep riding year-round. A transferable spindle can be installed in Rally RS road or Rally XC off-road pedal body kits (each sold separately). - Battery Life—Make sure you're ready for those long rides and training sessions with up to 120 hours of battery life. Specs: - Battery type: LR44/SR44 (x4) or CR1/3N (x2) - Battery life: up to 120 hours - Maximum rider weight: 105kg - Accuracy: +/- 1% - Field calibration - Adjustable release tension - Measurement location: spindle - Communication: ANT+ and BLUETOOTH - Weight: 326g - Water resistance: IPX7 - Cleat type: KEO - Q-factor: 53mm (55mm with provided 2mm washer) - Stack height: 12.2mm In the Box: - Rally RK200 pedals - Cleat hardware - 55mm Q-factor washers - Documentation

Rally RS200 is tested to the extreme, so you can ride there too. This dual-sensing power meter delivers reliable power measurements and is easy to transfer between bikes, no matter what bike you're on or where you're riding. - Impeccably Designed Pedal—Rally power meters have undergone rigorous testing to ensure total reliability. Featuring a superior design with sensors housed inside, these sleek pedals install like any pedal. And they're quick to transfer between bikes. - Advanced Cycling Dynamics—In addition to total power and cadence, Rally RS200 measures much more. These metrics help you tailor your training around your specific weaknesses and strengths to help you improve. - Left/Right Balance—Measure power from your left leg versus power from your right leg to get a better look at how symmetrically you're producing power. - Seated vs. Standing—Track the amount of time you spend in each position and gauge position effectiveness. - Power Phase—Get a clear look at where you're producing power in the pedal stroke. - Platform Center Offset—Ensure proper cleat position by keeping track of where power is applied on the pedal. - Cleat Compatibility—For a comfortable ride, these pedals are designed with your favorite Shimano SPD-SL cleats in mind. - Transferable Spindle—From road to gravel to cyclocross and much more, keep riding year-round. A transferable spindle can be installed in Rally RS road or Rally XC off-road pedal body kits (each sold separately). - Battery Life—Make sure you're ready for those long rides and training sessions with up to 120 hours of battery life. Specs: - Battery type: LR44/SR44 (x4) or CR1/3N (x2) - Battery life: up to 120 hours - Maximum rider weight: 105kg - Accuracy: +/- 1% - Field calibration - Adjustable release tension - Measurement location: spindle - Communication: ANT+ and BLUETOOTH - Weight: 320g - Water resistance: IPX7 - Cleat type: SPD-SL - Q-factor: 53mm (55mm with provided 2mm washer) - Stack height: 12.2mm In the Box: - Rally RS200 pedals - Cleat hardware - 55mm Q-factor washers - Documentation

Rally XC200 is tested to the extreme, so you can ride there too. This dual-sensing power meter delivers reliable power measurements and is easy to transfer between bikes, no matter what bike you're on or where you're riding. - Impeccably Designed Pedal—Rally power meters have undergone rigorous testing to increase reliability. Featuring a superior design with sensors housed inside, these sleek pedals install like any pedal. And they're quick to transfer between bikes. - Advanced Cycling Dynamics—In addition to total power and cadence, Rally XC200 measures much more. These metrics help you identify your strengths and weaknesses, so you can work to improve. - Left/Right Balance—Measure power from your left leg versus power from your right leg to get a better look at how symmetrically you're producing power. - Seated vs. Standing—Track the amount of time you spend in each position and gauge position effectiveness. - Power Phase—Get a clear look at where you're producing power in the pedal stroke. - Platform Center Offset—Ensure proper cleat position by keeping track of where power is applied on the pedal. - Cleat Compatibility—For a comfortable ride, these pedals are designed to fit your favorite Shimano SPD cleats. - Transferable Spindle—From road to gravel to cyclocross and much more, keep riding year-round with a transferable spindle that can be installed in the Rally RS/Rally RK road pedal body kits (each sold separately). - Battery Life—Make sure you're ready for those long rides and training sessions with up to 120 hours of battery life. Specs: - Battery type: LR44/SR44 (x4) - Battery life: up to 120 hours (with LR44 battery type) - Weight: 316g - Water resistance: IPX7 - Max. rider weight: 105kg - Accuracy: +/- 1.0% - Cleat type: Shimano SPD - Q-factor: 53/55mm with supplied spacing washer - Stack height: 13.5mm - Field calibration - Adjustable release tension - Garmin Connect - Measurement location: Spindle - Communication: ANT+ and Bluetooth In the Box: - Rally XC200 pedals - Cleat hardware - 55mm Q-factor washers - Documentation

Always up for a family adventure, the heavy-duty Cub X kid bike trailer and stroller handles tough terrain while keeping kiddos comfy and secure

E-TrikeKit Adult Tricycle Conversion Kit with Heavy-Duty (Low Speed / High Torque) 500w Direct-Drive Hub Motor 48v Li-Ion Battery Pack and Charger. The E-TrikeKit electric tricycle conversion kit with a 48v lithium battery pack is specifically made with increased pulling power for heavier adult tricycles. The direct-drive hub motor is designed to deliver more low-end torque and a lower top speed; important for safety on a 3-wheeler. This premium system with a lithium battery gives high-end performance and longer overall battery life. Who's it for? This kit is built specifically for upright adult tricycles. The heavy-duty direct-drive motor is designed for increased torque and a lower top speed. This kit also has a speed-limited reverse (30% of forward top speed). The E-TrikeKit is designed specifically for adult tricycles. Includes our LCD dashboard display, 48v 12FET controller, speed-limited reverse function, and locking e-brake handles, the system is easy to install and operate and gives the rider total control over top speeds and power output. This trike specific conversion kit allows you to turn any conventional 3-wheel adult tricycle into an electric-assisted adult mobility tricycle. System Specs: Watts (Nominal/Peak): 500w / 750w (EBK 22Amp Controller) Top Speed: Approx. 20 mph @48v in 26" wheel (4 mph reverse) Range: 9-42 Miles Charge Time: 3-5 hrs (from 0-100% and depending on battery choice) Weight: 489 5.8 lbs. / 4810 9.7 lbs. / 4820 14 lbs. Performance: High Efficiency: Medium Stealth Factor: Low Li-ion batteries provide a high level of performance for the duration of each discharge (unlike seal lead-acid where performance is diminished 1:1 as the pack is emptied). Li-ion batteries have a much higher power to weight ratio than lead-acid and 5-8 times the number of charge cycles (how many times a rechargeable battery can be charged from 0-100%). The li-ion option costs more initially, but over time, the "cost-per-cycle" is about half the cost of lead-acid. Li-ion packs also require less care as they can be left partially charged, and do not require immediate charging after each use. All batteries MUST be properly cared for during storage. Battery Choice: We offer 3 battery packs for this kit - the 9Ah li-ion shrink-wrapped battery is the lightest and smallest, at just 5.8 lbs. The 20Ah li-ion shrink-wrapped battery is the longest-lasting, with a 20-44 mile range. 48v 9Ah Bag Battery Range: 9-18 Miles Price: $1,068.00 This e-bike battery is a lightweight and easy to carry pack. Two of these packs will fit into one canvas battery bag (included) nicely, offering the option of taking one or two of these depending on your range needs. You do have to connect them one at a time as needed; the same for charging. ** It is common to carry two 48v 9Ah batteries in the same canvas bag in order to double your range. However, these batteries can not be used in parallel with one another. In other words, you would have to physically unplug one, in order to use the other. ** 48v 10Ah w/ 2-Tier Rack Range: 10-20 Miles Price: $1,298.00 This li-ion e-bike battery offers a nice finished look plus a locking mechanism for securing the battery in the middle section of an included 2-tiered rack. The top of the rack remains clear and available. 48v 14ah Down Tube Mount Range: 12-24 Miles Price: $1570.00 This li-ion e-bike battery offer a sleek clean and integrated look by using an adaptor to mount the battery to the frame. Fully removable from the adaptor for charging. It is common for people to buy an extra battery to swap out while on his charging or for double the capacity. 48v 20Ah Bag Battery Range: 20-40 Miles Price: $1,448.00 This e-bike battery is the largest capacity, longest-range e-bike battery we offer. This pack weighs 14 lbs. and comes in our canvas battery bag with velcro straps for securing it to the top of a conventional rear rack (not included). Choosing Your Wheel Size: You can find your wheel size written on your tire. Available size options for this conversion kit are: 16", 20", 24", 26", 700c, and 29er. Acceptable tire widths for the E-BikeKit rims: 1.15" (29mm) - 2.25" (57mm).

Convert your Sunseeker Eco-Tad (trike sold separately) to an electric assisted dream! Extras Included: Pedal-Assist Extension Cable Locking Parking Brake Levers Topeak BarXtender Eco-Tad Rack-to-Frame Bracket Extra-Long Rack Struts Axiom Journey Rear Rack for 9 and 20Ah batteries or 2-Tier Rear Rack for 10Ah Batteries E-BikeKit Rear 500w Geared Hub Motor Conversion Kit with 48 Volt Li-ion Battery Pack and Charger. The E-BikeKit 500-1000w geared conversion kit is powered by an internal 5:1 planetary gear hub motor with a clutch. The clutch in the geared motor offers zero drag when pedaling and not engaging battery power. This motor is more efficient, resulting in increased range (especially with "start/stop" riding), has more starting torque, and has greater hill-climbing ability than a direct drive motor of equal power rating. The motor is also smaller in diameter for increased stealth and 3.4 lbs lighter than the 500w direct drive. Who's it for? This premium electric bike conversion kit system is for those that want the best of the best in performance, efficiency, weight, stealth, and speed. The top speed is 28 mph! There is a 300 lbs total load limit so if you plan on more than that, look to a heavy-duty system. System Specs: Watts (Nominal/Peak): 500-1000w (EBK 22Amp Controller) Top Speed: Approx. 26 Mph @ 48v in 26" Wheel Range: 10-44 Miles (Based on rider's weight, input, and terrain contingent) Charge Time: 3-5 Hours (Charged from 0-100% and depending on battery choice) Weight: 21 lbs (9.5 kgs) Performance: High Efficiency: High Stealth Factor: High Lithium batteries provide a high level of performance for the duration of each discharge (unlike seal lead-acid where performance is diminished 1:1 as the pack is emptied). Lithium batteries have a much higher power to weight ratio than lead-acid and 5-8 times the number of charge cycles (how many times a rechargeable battery can be charged from 0-100%). The lithium option costs more initially, but over time, the "cost-per-cycle" is about half the cost of lead-acid. Lithium packs also require less care as they can be left partially charged, and do not require immediate charging after each use. All batteries MUST be properly cared for during storage. Battery Choice: We offer 3 battery packs for this kit - the 9Ah li-ion shrink-wrapped battery is the lightest and smallest, at just 5.8 lbs. The 20Ah li-ion shrink-wrapped battery is the longest-lasting, with a 20-44 mile range. The 10Ah li-ion aluminum case battery sports a rugged enclosure, carrying handle, and locks in place with a key. 48v 9Ah Bag Battery Range: 9-18 Miles Price: $1,360.00 This e-bike battery is a lightweight and easy to carry pack. Two of these packs will fit into one canvas battery bag (included) nicely, offering the option of taking one or two of these depending on your range needs. You do have to connect them one at a time as needed; same for charging. ** It is common to carry two 48v 9Ah batteries in the same canvas bag in order to double your range. However, these batteries can not be used in parallel with one another. In other words, you would have to physically unplug one, in order to use the other. ** 48v 10Ah w/ 2-Tier Rack Range: 10-20 Miles Price: $1,580.00 This li-ion e-bike battery offers a nice finished look plus a locking mechanism for securing the battery in the middle section of an included 2-tiered rack. The top of the rack remains clear and available. 48v 20Ah Bag Battery Range: 20-40 Miles Price: $1,800.00 This e-bike battery is the largest capacity, longest range e-bike battery we offer. This pack weighs 14 lbs and comes in our canvas battery bag with velcro straps for securing it to the top of a conventional rear rack (not included).

E-BikeKit Front 500w Direct-Drive Hub Motor Conversion Kit with 48v Li-ion Battery Pack and Charger. This premium electric bike conversion kit system is for riders that require the increased durability of a direct-drive motor for heavier loads and the long term reliability of a lithium battery. The direct-drive hub motor used in this conversion kit system is for heavier applications and a MUST for any total load (bike+rider+cargo) of 300 lbs. or more. This system pairs the heavy-duty motor with a 48v battery pack with a 20 mph top speed for increased torque. Direct-drive motors are strong, durable, and long-lasting due to zero internal friction. Some lower quality or larger direct-drive motors have resistance, but that should not be a concern with this E-BikeKit direct-drive hub motor. System Specs: Watts (Nominal/Peak): 500-1000w (EBK 22Amp controller) Top Speed: Approx. 20 mph @48v in 26" wheel Range: 9-42 Miles Charge Time: 3-5 hrs (from 0-100% and depending on battery choice) Weight: 489 5.8 lbs. / 4810 9.7 lbs. / 4820 14 lbs. Performance: High Efficiency: Medium Stealth Factor: Low Li-ion batteries provide a high level of performance for the duration of each discharge (unlike seal lead-acid where performance is diminished 1:1 as the pack is emptied). Li-ion batteries have a much higher power to weight ratio than lead-acid and 5-8 times the number of charge cycles (how many times a rechargeable battery can be charged from 0-100%). The li-ion option costs more initially, but over time, the "cost-per-cycle" is about half the cost of lead-acid. Li-ion packs also require less care as they can be left partially charged, and do not require immediate charging after each use. All batteries MUST be properly cared for during storage. Battery Choice: We offer 3 battery packs for this kit - the 9Ah li-ion shrink-wrapped battery is the lightest and smallest, at just 5.8 lbs. The 20Ah li-ion shrink-wrapped battery is the longest-lasting, with a 20-44 mile range. 48v 9Ah Bag Battery Range: 9-18 Miles Price: $1,228.00 This e-bike battery is a lightweight and easy to carry pack. Two of these packs will fit into one canvas battery bag (included) nicely, offering the option of taking one or two of these depending on your range needs. You do have to connect them one at a time as needed; the same for charging. ** It is common to carry two 48v 9Ah batteries in the same canvas bag in order to double your range. However, these batteries can not be used in parallel with one another. In other words, you would have to physically unplug one, in order to use the other. ** 48v 10Ah w/ 2-Tier Rack Range: 10-20 Miles Price: $1,492.00 This li-ion e-bike battery offers a nice finished look plus a locking mechanism for securing the battery in the middle section of an included 2-tiered rack. The top of the rack remains clear and available. 48v 20Ah Bag Battery Range: 20-40 Miles Price: $1,666.00 This e-bike battery is the largest capacity, longest range e-bike battery we offer. This pack weighs 14 lbs. and comes in our canvas battery bag with velcro straps for securing it to the top of a conventional rear rack (not included). Choosing Your Wheel Size: You can find your wheel size written on your tire. Available size options for this conversion kit are: 16", 20", 24", 26", 700c, and 29er. Acceptable tire widths for the E-BikeKit rims: 1.15" (29mm) - 2.25" (57mm).

E-BikeKit Rear 500w Direct-Drive Hub Motor Conversion Kit with 48 Volt Li-ion Battery Pack and Charger. This premium electric bike conversion kit system is for riders that require the increased durability of a direct-drive motor for heavier loads and the long term reliability of a lithium battery. The direct-drive hub motor used in this conversion kit system is for heavier applications and a MUST for any total load (bike+rider+cargo) of 300 lbs. or more. This system pairs the heavy-duty motor with a 48v battery pack with a 20 mph top speed for increased torque. Direct-drive motors are strong, durable, and long-lasting due to zero internal friction. Some lower quality or larger direct-drive motors have resistance, but that should not be a concern with this E-BikeKit direct-drive hub motor. System Specs: Watts (Nominal/Peak): 500-1000w (EBK 22Amp controller) Top Speed: Approx. 20 mph @48v in 26" wheel Range: 9-42 Miles Charge Time: 2.5 hrs (from 0-100%) Weight: 24 lbs. (11 kgs) Performance: High Efficiency: Medium Stealth Factor: Low Li-ion batteries provide a high level of performance for the duration of each discharge (unlike seal lead-acid where performance is diminished 1:1 as the pack is emptied). Li-ion batteries have a much higher power to weight ratio than lead-acid and 5-8 times the number of charge cycles (how many times a rechargeable battery can be charged from 0-100%). The li-ion option costs more initially, but over time, the "cost-per-cycle" is about half the cost of lead-acid. Li-ion packs also require less care as they can be left partially charged, and do not require immediate charging after each use. All batteries MUST be properly cared for during storage. Battery Choice: We offer 3 battery packs for this kit - the 9Ah li-ion shrink wrapped battery is the lightest and smallest, at just 5.8 lbs. The 20Ah li-ion shrink wrapped battery is the longest-lasting, with a 20-44 mile range. 48v 9Ah Bag Battery Range: 9-18 Miles Price: Starting at $1,228 depending on freewheel This e-bike battery is a lightweight and easy to carry pack. Two of these packs will fit into one canvas battery bag (included) nicely, offering the option of taking one or two of these depending on your range needs. You do have to connect them one at a time as needed; same for charging. ** It is common to carry two 48v 9Ah batteries in the same canvas bag in order to double your range. However, these batteries can not be used in parallel with one another. In other words, you would have to physically unplug one, in order to use the other. ** 48v 10Ah w/ 2-Tier Rack Range: 10-20 Miles Price: Starting at $1,492 depending on freewheel This li-ion e-bike battery offers a nice finished look plus a locking mechanism for securing the battery in the middle section of an included 2-tiered rack. The top of the rack remains clear and available. 48v 20Ah Bag Battery Range: 20-40 Miles Price: Starting at $1,666 depending on freewheel This e-bike battery is the largest capacity, longest range e-bike battery we offer. This pack weighs 14 lbs. and comes in our canvas battery bag with velcro straps for securing it to the top of a conventional rear rack (not included). Choosing Your Wheel Size: You can find your wheel size written on your tire. Available size options for this conversion kit are: 16", 20", 24", 26", 700c, and 29er. Acceptable tire widths for the E-BikeKit rims: 1.15" (29mm) - 2.25" (57mm). Freewheel Choice and OLD Spacing: E-BikeKit motors are intended for a 7-speed freewheel and provide 135mm OLD (dropout) spacing with a 7-speed freewheel and 15mm disc-offset. When using an 8, 9, or 10-speed freewheel, this will increase the OLD by about 3.5mm per speed. When the motor is assembled E-Bike Kit will dish and space it correctly to fit this. To install the wider wheel, you may need to spread the dropouts of the bike open in order to fit. If you are not using disc brakes, so don't need the 15mm disc-offset, we can reconfigure the spacing to fit 135mm in many cases.