Topic: Front suspension upgrade

[afkrejci90]

Looking to upgrade my front suspension and braking power while at the same time reducing some weight on my Hi-Po build.  So the dual disc brake mod on the stock forks won't do it.  I still want to keep the look of the forks somewhat period correct and use a set from a 03/04 CBR since they don't have inverted forks.  So my question is will I be able to still use the original spoked wheels?  Will the hubs match up to new rotors?

[70CB750]

What new rotors?  From CBR?  No, they will not.

[afkrejci90]

I can get a complete set of forks and triples with calipers for a steal from the 600rr forum.  Looks like the hub will be the most expensive part of it, but I won't need a new stem for the triples.  Thanks for the info!

[70CB750]

The fork will likely interfere with the tank too; isnt CBR fork wider than CB?

[afkrejci90]

You misunderstand: mating the new stem and triples to the stock CB can be the issue. The stock CB steering bearings may differ in ID than the CBR donor. And vice-versa. AllBallz sells tapered steering bearings that mix-match non stock setups. They're cheap but invaluable and they are an upgrade to the stock ball bearings that are 40 years old in your bike.

Oh I understand.  I looked up the bearings that would be required for this setup, 03 forks on 750 frame.

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[SOHC4 Cafe Racer Fan]

You are already covered, but another good option if you want conventional forks (but lighter weight) is a slightly older Yamaha R6 (up through 2004).

[afkrejci90]

You are already covered, but another good option if you want conventional forks (but lighter weight) is a slightly older Yamaha R6 (up through 2004).

That would be ideal if I could find them for a decent price, but I found a local set of 03 gsxr forks for $140.  Hopefully the forums will turn up something.

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[afkrejci90]

You are already covered, but another good option if you want conventional forks (but lighter weight) is a slightly older Yamaha R6 (up through 2004).

Well there could be a clearance issue with those forks, looks like I would only be able to use the stock r6 wheel since the calipers are mounted as far in as possible.