There's nothing between the MC21SP and MC28SE forks except their age. It all depends on what you do with each bike. If you're racing, and your series allows it, then the HRC forks want to go on the race bike, but if you're just hanging out at the bike meet at Steak'n'Shake, then fit the forks to the bike you take there most often!
Whichever you decide on, take the best conventional (RWU) SE/SP forks and use them on the other bike. Remember the calipers are different though!
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Andy.
NSR-WORLD.COM
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