Brew brakes - single pivot
bikerboy337 said:
So i've got an ultegra group that i'm building my bike up with... but thinking of getting a set of brew brakes to replace the ultegras (good deal on them through a friend)... any thoughts... will the brews be that much worse in braking than the new ultegras? thnx.
Brew brakes are a single pivot brake, vs. Ultegra brakes with a dual pivot. A dual pivot brake has a higher leverage ratio (about 1:1 for single pivot and 1.6:1 for dual pivot), and has a better self-centering. The higher leverage of the dual pivot brake requires a smaller pad to rim clearance, so the self-centering feature is important. Single pivot brakes have more pad to rim clearnance, so the self-centering feature isn't as important. On the other hand, single pivot brakes are typically much lighter than dual pivot brakes.
What the lower leverage ratio of single pivot brakes means is that more hand force is required for a given braking force. However, since most riders rarely approach their maximum braking limit, if you've got strong hands you shouldn't have a problem with single pivot brakes.