Cycling Bargains - BikeInn Sturmey Archer Automatic A2k Rear Hub | Hot deals section, massive stocks, great prices & easy returns. (INN147375315)
BikeInn Sturmey Archer Automatic A2k Rear Hub | Hot deals section, massive stocks, great prices & easy returns.
Product Description
Sturmey Archer Automatic A2K 2-Speed Rear HubElevate your urban cycling and e-bike experience with the revolutionary Sturmey Archer Automatic A2K 2-Speed Rear Hub. Engineered for simplicity, reliability, and a pure, uncluttered ride, this internal gear hub eliminates the need for shifters, cables, and manual adjustments. It is the ultimate upgrade for the modern commuter and city explorer who values performance and minimalist aesthetics. Perfect for your rear wheel build, this hub redefines efficiency in urban cycling environments. The Pinnacle of Effortless RidingThe core benefit of the A2K hub is its intelligent, speed-dependent automatic shifting. Forget about fumbling with shifters in traffic or trying to find the right gear on a hill. The hub´s ingenious internal centrifugal clutch mechanism does all the work for you. It remains in the low gear for easy starts from a standstill, and as you pedal and increase your speed, it seamlessly and automatically shifts into the higher gear for efficient cruising. When you slow down for a stop sign or traffic light, it automatically shifts back down, ensuring you are always in the perfect gear to get going again. This hands-free operation allows you to focus completely on the road and the joy of your ride. Designed for the Modern Urban Landscape and E-BikesSpecifically designed for Urban Cycling and robust enough for E-bikes, the Sturmey Archer A2K is a masterclass in practicality. The 137% transmission ratio provides two perfectly optimized gears: a direct-drive low gear for quick acceleration and a high gear that is 37% taller, ideal for maintaining momentum on flat stretches and slight downhills. This enclosed system protects the gearing mechanism from water, dirt, and road grime, drastically reducing maintenance compared to a conventional derailleur system. The result is a consistently smooth and reliable drivetrain, day in and day out, whatever the weather. Its robust build is perfectly suited to handle the additional torque and demands of electric-assist bicycles, making it a premier choice for e-bike conversions or upgrades. Key Features and Unmatched VersatilityThis hub is built for performance and compatibility. The 36-hole configuration allows for an incredibly strong and durable wheel build, essential for handling the rigours of city streets and the extra weight of e-bike systems. Compatibility with modern disc brakes ensures you have powerful, all-weather stopping power at your disposal, a critical safety feature for urban environments. The 135mm axle length is a common standard for many hybrid, city, and commuter frames, making retrofitting a straightforward process for your workshop or custom build project. The elegant silver finish provides a timeless, classic look that complements any bicycle.Technical Specifications:* Product: STURMEY ARCHER ´´Automatic A2K´´ Internal Gear Hub* Position: Rear* Speeds: 2 (Automatic, Speed-Dependent Shifting)* Brake Compatibility: For Disc Brake* Spoke Holes: 36* Transmission Range: 137% (Gear 1: 100%, Gear 2: 137%)* Axle Length / O.L.D.: 135mm* Chainline: 45.3mm* Sprocket Compatibility: Designed for sprockets with 13 to 24 teeth* Color: Silver
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