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3 votes
2 answers
7k 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 ...
granzoporo's user avatar
3 votes
1 answer
672 views

What is the 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 (e.g. IM70, IM81 or IM85). I have noticed that Shimano has two different lineups for their drum brakes: ...
OverTheRainbow's user avatar