Join Date: Aug 2005
Location: Pittsburgh, PA
Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
Mentioned: 14 Post(s)
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Quoted: 400 Post(s)
The radial difference between a 26" MTB and a 700c road rim is 31.5 mm or 1-1/4". That's way too much for most V-brakes to reach so your options are limited. Apparently the Paul brakes are specifically claimed to allow this conversion but at $250/set I can see you problem with them. Also, raising the brake pads that far has got to compromise their leverage and, therefore, their power.
The Mavic converter seems like the only sensible way yo go unless, as RG discovered, the crown hole in your fork is positioned to allow a regular sidepull caliper to work. However, that only solves the front brake problem. You will still need something else for the rear brake.