vbrake booster explained

[gsy971]

want some general info on brake boosters as i am riding a rigid 1x9 '95 Trek 8700 as a commuter. i have one pretty short but steep hill to conquer on my way to work but noticed the other day some vibration when braking on the way down the hill. I guess that's some flex? sorry for the ignorance. i am thinking i need a brake booster(s). Don't want to compromise the weight but if i need those booster(s) then so be it.

could someone explain brake boosters so i can make an informed decision if i need them. thanks

 

[poweredbypies]

Boosters work by stiffening the stays/forks up and stopping the spreading out as much. If you squeeze your rear brake and look at the stays you may or may not see them spread/flex apart. Sure some one will be long with more info tho.

 

[FluffyChicken]

designed to stiff reduce seperation and twisting between the two bosses.

It might reduce your vibrations, but that might not really be the answer.
It could be you pad setup, pad type, rim surface, dislike of water. OR the whole brake arms thamselves.

What is our setup ?

A worn patch on the rim might cause it to bit more and then less, same with a bit of water. Try a softer compound pad that'll be less grabby and give smoother braking.
Don't brake as much
Do you use you finger muscles to do the braking (hard feeling brakes) I know some people prefer that style or the levers to do the braking (softer feel to the brakes)

 

[gsy971]

XTR v-brakes
Mavic ceramic crossmax
avid sd-7 levers
ceramic pads
exotic carbon rigid fork

 

[gsy971]

also the vibrations are happening when dry. i live in hawaii and afternoon weather is africa hot and when i am ridding downhill, applying brakes

 

[cce]

nothing i did ever stopped my ceramic crossmax from being juddery and grabby.

Sold them

 

[jimo746]

It's not a loose headset is it?

Are the brake bosses bonded onto those carbon forks?

 

[bren]

I always struggle to get mavic rims to STFU when under hard braking. Even with correct pad toe angles they seem to howl until the coating has worn away.

 

[mikede]

^same here. But on the upside, I never had to mount an ugly bell on my bike. Pedestrians hear the brake-squeal and dive out of the way.