i have seen some wheels from an 18 for sale, does anyone know if these will go straight on my cbr400 nc29 now i realiose that the rear is 18" which is no good cos i want 17s but will the discs be ok as i think they are floating (whatever that means) ??
cheers guys. _________________ MC21SP - Roth-tax
CBR400 - track
MC21R - sold
MC21SP - sold
Dunno about the size, but floating means the disks are not bolted solidly to the hub of the wheel, rather they 'float' on bobbins which allow the disks to move side-to-side slightly, meaning they run truer through the caliper, and therefor you suffer less distortion if the disks get too hot, and less friction if the manufaturing process hasn't aligned the disk / caliper too well.
Have a look at a floating setup and you'll see that there's a carrier, and a seperate disk, with the two parts held together by bobbins with a spring or wavey washer in there to cut down on rattling. (well, on most setups anyway) _________________ MC21SP Plaything
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so if both wheels are 17" and have floating discs! it should fit .......right?? :?
dave thanks, i did check the specs for th size of the 18 wheels, but didnt check the discs _________________ MC21SP - Roth-tax
CBR400 - track
MC21R - sold
MC21SP - sold
Almost all disks on bikes are semi floating. Most of road bikes use a non removable bobbin with a spring washer to keep the disk pressed to one side of the inner carrier and stop the rattle. Youre disks on the CBR and NSR will be semi floating. The full race disks such as brembo GP use the same kind of setup but without spring washer and have a removable bobbin. These let the disks exspand alot more but rattle. You often see these on ducatis and such. The HRC ones use the same kind of rotor as the PFM's where the rotor sits in groves and is held in by a large circlip (for the PFM's) or a number of small riveted plates (for the HRC ones). These types dont have any bobbins at all but the grove allows the rotor to exspand. _________________ If I have to take the carbs off once more...
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