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Old 12-11-10 | 03:22 PM
  #22  
reptilezs
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Joined: Sep 2004
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From: boston, ma
Originally Posted by Peterpan1
Clasher we are in perfect sync, not in disagreement. I disagree with the dude who said there was a massive difference. I have the 287s for Vs. The pivot point is lower than on the standard road lever. This allows the brake to pull more wire. You need to pull more wire because the V has a longer lever arm, more powerful, but it takes more wire movement to move it. So what you win on lever arm, you give back on lever. It isn't too bad from the drops, but from the hoods the pivot point is lower. If it gets low enough it will eventually be impossible to activate at all, but it means that in effect the fingers have less mechanical advantage. We all know this right, you can pull harder on the levers from the drops than on the hoods, but it is way worse with the lower pivot point. It could be dangerously low for small hands. I have no problem at my size, but my wie would be in the danger zone for sure. For her it would mater a lot whether she road Vs or cantis from the hoods. Actually, all insults aside, that is probably and advantage to travel agents over special levers for Vs, easier for the little hands.

Travel agents give back mechanical advantage also, they have a small input wheel and a large output wheel. Gets the Vs moving, but dumps mechanical advantage, and there would be losses in the bearings also.
doesn't matter. once you start pulling cable on the canti brake the mechanical leverage goes down at the brake.
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