Topic: Are all SOHC Front brake parts the same?

[Ben]

Hiya All,

I am attempting to collect a few bits for a twin disk set-up and am wondering which parts are interchangeable between the 35mm fork SOHC models (cb500/550/750). Can the calipers, disks, caliper mounting gear etc be swapped between all three models? Would make the search a little wider!

Thanks,
Ben.

[Chris in Ramsey]

Ben, other than a bolt or two the 500/550 set-up is completly different than the 750K/F1 front brakes. The 750F2 brakes are unique to themselves.

[bryanj]

As previously said but with a bit extra
400 discs are unique
500/550 four + 500 twin discs are same
all 750 discs UP TO F2 are same
Earls 750 calipers unique
400/500(t & F)/550 are same 750 looks similar BUT the mounting bolts are farther apart

Tell me what bike and i will be be able to give better details!

[Ben]

Thanks All.

My aim is to gradually collect parts for a twin disk setup, to swap between both my cb350K4 racer and my 400/4. So, I need to work out which fork sliders, fork tubes and triple clamps (as the base) would allow me access to the most parts. That is, calipers, disks and mounting hardware.......

I figure 750 forks would be the best base, but from memory, the 500/4 fork tubes are chrome all the way to the top? Also, I need to keep the whole setup as close to 1972 (or before) as possible to comply with race class regulations............

Any more hints?

Thanks.

[bryanj]

500 four forks are not chromed at the top as its inside the fork ears ALSO 500 does not have the fittings on the rh slider for a caliper. What you need is a 550 front end COMPLETE (dont forget 400 only has an 18inch front wheel---all 550 are 19 AND i think the fork tubes are smaller in diameter) PLUS a second caliper and disc along with a Goldwing master cylinder. If you email me direct i have a word document on how to complete with pictures of a modified speedo drive