I bought an NOS forebrake in the (open) box from the fifties; for my '49 B6, & had it installed nicely on my S2 rim; everything is NOS but for some reason the brake shoes drag just hard enough that the bike is a misery to ride! (The adjustment is about as loose as it can get) The shoes have not been relined, & everything is correctly assembled and NOS. What could be wrong? I did notice the cable contained in the box was for a rear brake & had to buy a repro front cable. Could the shoes be heavy duty, or put into the box from a Whizzer, possibly making them a "hair" BIGGER than normal? This is a real tough one for me, being a newbie of sorts. Any ideas are welcome. Thanks!