Getting sick of hearing from me yet? LOL....Ya, I have these. I heard about stockers failing, especially with the Shockwave helix (which has narrower ramps), so I put them in.
I never really noticed a performance increase, BTW.
Never!...Hands on honest info! Thanks allot. I Did not really believe that a guy would see a performance increase, unless your stockers were toast. Thanks again Dave.
Don't get me wrong on my perception of the rollers....I never noticed any seat of the pants difference, but that's not to say they don't roll better. I've used these rollers on my AC clutches in the past and the difference was very noticeable. My partner put some on his 03 900 1M in 04 and they are still going strong. The Doo rollers are tougher than the OEMs and have better clearance....so there's likely some small gains there. I've met and ridden with Dan, his son Calvin, and grandson a few times over the years and they are good people. They are all clutching perfectionist/gurus. Believe me, I know.....I've had my butt handed to me by "old iron" every time I ride with them. LOL.
If you get these rollers, READ the instructions. Removing the old ones requires patience and several beers.