I bought the mount kit for my Eastern Ace of Spades. Appreciate is an older bike and not BSD, although I thought these were pretty universal, I did manage to get it to fit however needed to purchase a new nut and bolt which was longer to make the kit fit.

There also wasn’t any nuts initially provided so not actually sure how you would fit this kit, I’m not sure if this was missing or whether the BSD frames are threaded and require no nut to fit.

Once I found my own bolts and nuts the kit fitted fine and now I have a working break. So overall happy with this product but would have been better if it came with a couple extra sizes of nuts and bolts to make it more universal.