Dang, wish I thought of that. I'll keep it in mind in case I ever have to mess with the floats again!
Edit: work sucks...home way late so no pic updates. Was able to fit the calipers and measure for spacers/longer mounting bolts. So here's the kicker:
GSXR wheel + GSXR rotors + b12 calipers DOES NOT work. The OD on the GSXR and bandit rotors are the same, so in theory it looks good. However the mounting point on the fork legs must be slightly different on the Kat than on the bandit. The calipers sit on top of the rotors and the attachment points are ~10mm off.
Solution: pre Kat rotors. The 600 and 750 use the same rotors, so it doesn't matter which you get. The OD on these is 290mm. Meaning they'll sit 10mm lower.
GSXR rotor:
Prekat rotor:
comparison:
I actually ran into this about 2 weeks ago, but wanted to get the pre rotors ordered/in/installed before saying anything. Did that yesterday. They DO work. You need about 8mm in spacers on either side to account for the different offsets, so a few washers.
Mounted up:
spacers needed:
You'll also need longer bolts (10x1.25x45mm), as the stock ones don't have much to grip with those spacers in. No custom fabbed adapters needed.
So for anyone else doing a 17" swap:
'91 GSXR 750 wheel + pre Kat rotors + '98 B12 calipers + some washers/new bolts = happiness
For spacers I used 10mm washers, hardened steel. I'm using hardened steel washers for all the spacers as opposed to regular washers. Having them deform or compress could lead to something loosening up over time and I'd rather not have a caliper or axle bolt fall off at 80mph on the freeway. 5 washers each for the top and bottom mounting point, for each side, for a total of 20 washers. I was unable to locally get the bolts in the correct length, so I bought longer ones and trimmed them to size. Stock bolts are 37mm, I ended up cutting mine to 47mm. 45mm is a common enough length so you should be able to source those locally or via the interwebs and not have to cut anything down. At 47mm I have about 1mm protruding. If you went with 45mm, I don't think missing 1mm of tread is going to result in anything bad.
Still need to rebuild the MCs and get brake lines. The stock bandit lines (came with my calipers) are not the correct length, the 2 lines going up to the splitter are too short so the splitter cannot attach to anything. In another thread I saw that the stock Kat lines would be too short with bandit calipers by about 1". I loosely lined things up, and yeah, looks too short. So new SS lines from G&J will be happening. I'm wanting to go with a 2 line set up. I know they've made the 3 line set up before on stock configuration, so adding 1" to that shouldn't be an issue. Hopefully they can figure out the 2 line configuration.
Getting shafted at work, next two weeks I'm having to do 6 day weeks, so not sure how much progress I'll be able to make. End of the month 1st ride possibility fading a bit.
EDIT:
pics now up through post 55
Edit: work sucks...home way late so no pic updates. Was able to fit the calipers and measure for spacers/longer mounting bolts. So here's the kicker:
GSXR wheel + GSXR rotors + b12 calipers DOES NOT work. The OD on the GSXR and bandit rotors are the same, so in theory it looks good. However the mounting point on the fork legs must be slightly different on the Kat than on the bandit. The calipers sit on top of the rotors and the attachment points are ~10mm off.
Solution: pre Kat rotors. The 600 and 750 use the same rotors, so it doesn't matter which you get. The OD on these is 290mm. Meaning they'll sit 10mm lower.
GSXR rotor:
Prekat rotor:
comparison:
I actually ran into this about 2 weeks ago, but wanted to get the pre rotors ordered/in/installed before saying anything. Did that yesterday. They DO work. You need about 8mm in spacers on either side to account for the different offsets, so a few washers.
Mounted up:
spacers needed:
You'll also need longer bolts (10x1.25x45mm), as the stock ones don't have much to grip with those spacers in. No custom fabbed adapters needed.
So for anyone else doing a 17" swap:
'91 GSXR 750 wheel + pre Kat rotors + '98 B12 calipers + some washers/new bolts = happiness
For spacers I used 10mm washers, hardened steel. I'm using hardened steel washers for all the spacers as opposed to regular washers. Having them deform or compress could lead to something loosening up over time and I'd rather not have a caliper or axle bolt fall off at 80mph on the freeway. 5 washers each for the top and bottom mounting point, for each side, for a total of 20 washers. I was unable to locally get the bolts in the correct length, so I bought longer ones and trimmed them to size. Stock bolts are 37mm, I ended up cutting mine to 47mm. 45mm is a common enough length so you should be able to source those locally or via the interwebs and not have to cut anything down. At 47mm I have about 1mm protruding. If you went with 45mm, I don't think missing 1mm of tread is going to result in anything bad.
Still need to rebuild the MCs and get brake lines. The stock bandit lines (came with my calipers) are not the correct length, the 2 lines going up to the splitter are too short so the splitter cannot attach to anything. In another thread I saw that the stock Kat lines would be too short with bandit calipers by about 1". I loosely lined things up, and yeah, looks too short. So new SS lines from G&J will be happening. I'm wanting to go with a 2 line set up. I know they've made the 3 line set up before on stock configuration, so adding 1" to that shouldn't be an issue. Hopefully they can figure out the 2 line configuration.
Getting shafted at work, next two weeks I'm having to do 6 day weeks, so not sure how much progress I'll be able to make. End of the month 1st ride possibility fading a bit.
EDIT:
pics now up through post 55
Comment