I've got the RS250 stuff, I'm going to buy a MC18 chassis.
The hyperpro is better than the run-of-the-mill ohlins.
Its got preload, high and low speed compression damping, as well as rebound damping. And a ride height adjuster.
The 'priller forks are pretty good. Far better than the stock honda stuff, even SE/SP, though inferior to the HRC RS250 GP stuff.
The thing is, I have the 'priller forks and Hyperpro shock... So I don't have to go out and buy them.
And the other 2 reasons I'm getting the MC18 frame, is that it is lighter and far cheaper... )
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The Chopster