Other Stuff > Interchangeability

Brake disc swap CB550F ---> CB750 K7

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Bryanj:
Back in the late 70's there was a firm that did cast rotors to bolt onto the standard carrier and i got one for my 500 four, i found that it made no difference in the dry and in the wet the brake worked and locked up sliding the front wheel out from under me!!!

I eventualy went to twin standard discs with one caliper in front and one behind (this was before the 550 came out with mirrir image sliders) plus a Goldwing master, that made the tyre howl when braking but never locked on me

Yoshi823:
I remember that advert being in 'Bike' magazine & possibly in 'Superbike' mag. It seemed like a good idea at the time, particularly because the brake pads of there day were not that good...until Ferodo brought out a worthwhile compound.

There's a forumite on here that has a CB750K sohc with a 500/550 front disc on it...the 750 is quite a lot bigger & it was this that I noticed.

matthewmosse:
Pfm I think do cast disks to replace stainless on Bmw's so that's where I'd look for cast disks. I deffinately think they have their place if you tend to use the bike in all weathers, though I just drag the front brake on almost pernemently if I get caught in a real downpour on the 500/4, onece warm the standard rotor works fine even in the worst Welsh / Yorkshire downpours, particuarly bearing in mind the tyres get less grip in those conditions and when I onece was on the motorway from Leeds in such conditions visabilit was also down to nil too. Brakes in standard form were still good for hauling a bike, sidecar and spare bike in bits and tools to put spare bike in bits all to a halt at motoway speeds - reduced speeds for conditions as I like to be able to stop on the amount of road I can see!

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