i have a Weinmann 750 Vainqueur 999 front brake and im trying to mount it to a mid 80s schwinn sprint. The pads bottom out and wont go any higher. THe pads barely touch the rim. That said.......is the 750 Long Reach? I see they made a model 610 as well. Im wondering if that is the shorter model? I havent found much. Maybe the schwinn sprint needs side pull or DP brakes instead? Ive got rear weimann that works just fine. THe front however is too long. DId they make different lengths?