Joined: Dec 2004
Posts: 12,561
Likes: 799
From: Middle of da Mitten
Bikes: Trek 7500, RANS V-Rex, Optima Baron, Velokraft NoCom, M-5 Carbon Highracer, Bacchetta Quattro, Catrike Speed
When a canti/V-Brake arm sticks, I've found it's usually because the post (on the frame or fork) is gunked up. The arm is off, now clean up the post of rust and gunk. Buff it up with some steel wool. Then, clean out the hole in the brake arm. Lightly grease and re-assemble.