Brake block reach/setup problem
.Ok, starting at the beginning. I have converted my Pace RC200 MTB with RC35 suspension forks into a fixed gear commuter.
Everything went well and I bought the Mavic brake adaptor which raises the brake pivots from the MTB 26" position to the correct height for a 700C wheel. However I have tried both Avid Shorty canti's and Cane Creek V-Brakes (with Cane creek reverse Time Trial type brake lever) on the front.
Neither I could get set up properly, it feels like whilst the height of the Mavic adjuster is correct they are too far apart for a narrow rim so when the brakes are applied the arms have passed the vertical point are are pushing the blocks down and off the rim. I have tried packing out the bolt on the back of the brake pad to push the brake arms out further but the bolts are not long enough to really achieve this.
Has anyone solved this problem, it feels like I want some v-brake pads with long bolts on the back but I guess that increases the leverage of the wheel acting against them when you brake? Alternatively the pivots need to move 10mm each closer to the wheel.
It just about works currently but riding in the rain this morning confirmed all is not good and being my only brake other than my legs I would like it to work well!
Hope that makes sense.
Everything went well and I bought the Mavic brake adaptor which raises the brake pivots from the MTB 26" position to the correct height for a 700C wheel. However I have tried both Avid Shorty canti's and Cane Creek V-Brakes (with Cane creek reverse Time Trial type brake lever) on the front.
Neither I could get set up properly, it feels like whilst the height of the Mavic adjuster is correct they are too far apart for a narrow rim so when the brakes are applied the arms have passed the vertical point are are pushing the blocks down and off the rim. I have tried packing out the bolt on the back of the brake pad to push the brake arms out further but the bolts are not long enough to really achieve this.
Has anyone solved this problem, it feels like I want some v-brake pads with long bolts on the back but I guess that increases the leverage of the wheel acting against them when you brake? Alternatively the pivots need to move 10mm each closer to the wheel.
It just about works currently but riding in the rain this morning confirmed all is not good and being my only brake other than my legs I would like it to work well!
Hope that makes sense.
0
Comments
-
Bump
(Surely someone must have a solution out there somewhere?)0 -
Perhaps Mr Mavic did not think that the brake bosses would end up too far apart for a 700c wheel? Is the problem just on the front, or both front and back?
Cantilever brakes are woth a try. But then you wouldn't want cantilever brakes on your bike.
26" is a far better better size of wheel for commuting duties than 700c. Dare I say it's your own fault for wanting a silly fixed gear. (Please forgive me, but I hate fixed gear).0
