CABLE PULLEY ASSEMBLY
The Brompton Gear Cable Pulley Assembly is that odd-looking black part mounted to the seat stay on the back of your Brompton. It is part of the Brompton hub-gear system used on all 3 and 6 speed Brompton bikes. It routes the gear cable through a 90-degree angle to the cable anchor which in turn connects to the gear indicator chain changing the gears on the 3-speed hub.
There is a wheel inside which should move freely to allow your gears to change without hassle. This can get clogged up over time. If it does, then this is what you need.
- Genuine Brompton replacement part
- Made of tough plastic
- Contains a smooth wheel which allows the cable to move freely
- Adjustable Aluminum screw to get the gears just right
- Compatible with older SRAM and modern Sturmey Archer bikes
Brompton is the only company we've seen that answers all three criteria - and believe us, we've tried every brand out there. The reason others can't compete is because Brompton has answered a fundamental engineering problem. If a bike is going to unfold to a large footprint (which takes the twitch out) then it is unfolding to a bigger bike - and by all logic, a bigger bike unfolded would be a bigger bike folded. So, it's pretty much true that for most folding bikes they either have great rideability but poor transportability or vice versa. And nearly all of them are a mess to fold.
Not Brompton. Brompton has designed the Platonic form of all folding bikes. The bike folds to the smallest size on the market, unfolds in a highly precise and easy manner, and has the same axle-to-axle footprint as a hybrid bike. How did they do this? By not only designing a clever frame, but also designing some 1200 proprietary parts that make everything fit - and fit perfectly. Oh, and nearly all of this is made in England. No wonder this bike has a cult following.
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