This kit is designed for a Yamaha Raptor 350 all year models . We use cork style friction plates which are proven to be very durable. Smooth steel plates & springs that are 10-15% stiffer than stock. One of the durability keys to our clutch kit is the smooth steel plates. "Dimpled or textured" steel plates WILL NOT handle as much H.P. or last as long as smooth steel plates. "Dimples" are concave in shape which reduces surface material causing less contact area which results in premature clutch slippage.
Posted by corey on 30th Jan 2017
original stock clutch started to slip in my 2005 raptor 350 , read reviews of other more expensive clutchs that worked for a little while but didnt last. Heard about driveline clutches on a raptor form Went ahead and got one off the driveline website. Noticed the Springs are stiffer than stock. Requiring a little more effort using the clutch lever, which is fine by me. The clutch grabs nice and tight. No complaints here.