Questions tagged [drum-brakes]

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5
votes
1answer
180 views

Can I put a 9mm axle hub with a Shimano roller brake into a 3/8" fork?

I have a Gazelle dutch bike which I want to upgrade with a front dynohub. It currently has a Sturmey Archer drum-brake hub dated 1988, which I believe to be a SBF model. I bought a wheel with a ...
3
votes
2answers
2k views

Shimano roller brakes: differences between each model and interchangeability

One of my bikes has mounted a Shimano Roller Brake (BR-IM35 FF in my case). These brakes on my bike are basically not working anymore and I would like to replace them (it's not a cable issue. They ...
1
vote
1answer
88 views

Drum brake that fits on a Brompton fork?

I'd like to install a drum brake on a Brompton. The internal distance between the drop-outs is 74mm. I don't know how wide the Shimano Nexus Roller Brake are, but Sturmey-Archer's X-FD looks ...
2
votes
0answers
176 views

Difference between BR-IM and BR-C Shimano drum brakes?

To ride in a hilly area, I'd like to replace a weak BR-IM45 front brake with something stronger (eg. IM70, IM81, or IM85.) I notice Shimano has two different lineups for their drum brakes: BR-IM and ...
5
votes
1answer
436 views

Tried to tighten the brakes, won't grip at all

I have a big problem. I know I could get this fixed with a mechanic, but really want to learn how to do it myself. I tried to fix (fool around) with my brakes a little the other day. The brakes are ...
2
votes
1answer
180 views

Drum brakes - ineffective when cold

I have city bike with Sturmey-Archer X-FDD front hub with drum brake. Last week, after cold and wet days (drizzle, 2 C), the temperature dropped below -10 C. I store this bike outdoors, I ride it ...
2
votes
0answers
323 views

Internal Roller Brake Problem

I have Shimano Inter M Roller Brakes on my bike. I felt the rear brakes were a bit light after riding 800 or so KM (total mileage on my bike so far) so I thought maybe theres a bit of cable stretch ...
3
votes
1answer
723 views

Axle adjustment in Atom drum brake?

I have a tandem with a drag brake in the hub of the back wheel. It works perfectly, providing a steady drag when descending. QUESTION: Can I simply treat it like a normal rear wheel with cups/cones, ...
3
votes
1answer
307 views

Front drum (was disc) brake only works when going backwards (!)

I am restoring my old bike that hasn't been used for quite a while. The rear brake works fine, however, the front brake has an issue: It only brakes when the bicycle is going backwards, not forwards! ...
3
votes
1answer
266 views

What kinda of maintenance does a Sturmey Archer X-FDD DynoBrake hub need?

I have a Sturmey Archer X-FDD dynohub and drum brake for about 2 years. I've riden it about 6000 miles and I don't know if it is due for maintenance or even what kind of maintenance is required. I can'...