Nice welds Frank! Looks like that frame can get run over by a tank and be unharmed!
Originally Posted by
ftwelder
The OP wanted to attach a disc brake mount on an existing frame with track drops. The position of the caliper would cause the wheel to scoot when the brake was applied. The whole drop could be replaced with a low mount but it's 7005 and machining a whole new drop would be very costly. I told him I can't help him but gave him some info on a guy who builds aluminum bikes in the Boston area.
Yes, that's why many motorcycles have their rear-brakes mounted below the swingarm. Applying the brake would force the axle forward which would then push the axle-adjuster bracket into the end of the dropout slots (which is closed anyway). Some swingarms have adjuster bolts inside the slots ahead of the axle. This is cleaner and more compact, but it requires you to remove the axle to turn the adjusters.
