3-Spd 6-Spd 13T Rear Sprocket Zoom

13T 3-Speed Sprocket, 3-spline, 3/32";

13-tooth replacement rear sprocket for Brompton 3-speed bikes and pre-2009 6-speed bikes (SRAM 6 speeds, not the current BWR 6-speed bikes).
This is what is fitted on all Brompton 3-speed bikes.

Cogs and chains wear together!
- If replacing this sprocket we'd expect (and highly recommend) that you also replace the chain.

If you prefer to buy the full sprocket kit, find that HERE
All of our Brompton chains can be found HERE

Download Brompton's Instructions HERE.

FYI: While the chains and rear sprockets wear at the same rate and thus need to be replaced at the same time, chainweels (chainrings to us americans) wear slower due to the bigger surface area. You will only need to replace the chainwheels for every 2 (or 3) chains/sprockets.

FYIII: 6-speed Bromptons that were produced in 2008 and earlier did not use the current Brompton Wide Range (BWR) hub, but rather used a SRAM hub that could be fitted with 2 sprockets. This 13T sprocket is the replacement for the 13T sprocket on those hubs.

SKU: BRO-1517
Only 2 left

Availability: In stock




Sprocket only 3/32' 3-spline - 13T (3-spd / SRAM 6-spd)

Brompton Part Code: QRSPR13DR
Brompton Part number: 9024049
UPC: 5053099024049

Additional Info

Additional Info

Type Cassette/Cog
brand Brompton


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