Thats a good question! Have you ever tryed to turn the clutch with that huge oil seal behind it. Thats one hell of a lot of fritction! lol i wouldnt be surprised if a dry clutch is no better than a wet clutch once the power gets to the rear wheel.
We had the option of running dry clutchs on the RC30's and YZF's but never did as they wouldnt go the distance in endurance. lol and Brian (my boss hates the noise) we must be nice too him tho as hes lettin us use the dyno!
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If I have to take the carbs off once more...