Hi there I have a question for the professionals.can you use 2003 cbr 600rr forks on a 2001 cbr 600 f4i. Just curious if there compatible .basically swap and use all my f4i parts brakes ,axle,front fender I'm sure there has been some one out there that has done it.thxn for your info

 

Its not quite that easy.
The RR forks are USD. You would need to change the tripples, wheel, axle, brakes, bars, everything....

 

Thank you very much for the help

 

One other question is there any forks that are compatible with the f4i or is it cbr specific.

 

I'm not sure about other makes fitting or not. If they did, you would need to change other stuff to make them work.

Why not get f4i forks? Is there something non repairable about yours? New springs and valves will make a huge difference....

 

03-04 RR forks are not USD they are standerd just like an F4i's. They didn't switch to USD until 05 with the small redesign and kept those units until 2011 or something. That being said, no they are not compatible with F4i's. They are a different diameter tube and have different sized brake rotors.
F4i forks can be made to work extremely well, and the brakes already do work great from the factory but can also be made much better.

 

I thought they went USD earlier than 05...
Good correction.

 

Once thank you gentleman for the help,the only reason I asked ,was for the reason I saw an add for sale.THe forks was in amazing condition and for only $100 .Well long story I baught a bike off of a stunter and they been painted a few times and also leak, top seal is cracked,not sure yet what the insides looks like.Im curious havnt research how much money and time but.Does anyone know what it cost to completely rebuild the forks cost?has anyone done it latly?
Thx again

 

New seals aren't expensive [oem is like $50 or something] plus new fluid would be another $30 or so then labor. You'll save by taking the forks off yourself before having someone rebuild them. A much better [and much bigger $] option is to send them to racetech for new seals, fluid, springs and valving. You'll be more around $600 I think but the difference is amazing.

 

954rr and 929rr front end are a direct swap to the F4i frame and are USD and probably quit a bit better than the stock F4i kit.

Though I don't know the differences between the 929 and 954 pieces