●FITMENT - The extra plate clutch kit fit for 1991-2002 Buell All Models. 1997-1998 Buell M2 Cyclone w/stock carb, Domino throttle. 1996-1998 Buell S1 Lightning w/stock carb, Domino throttle.1997-1998 Buell S3 Thunderbolt w/stock carb, Domino throttle. 1999 Buell X1 Lightning w/stock carb, Domino throttle. 1990-1997 Harley Big Twin models. 1991-2017 Harley Sportster models. The stacking height is pre-measured to ensure that the size is precise and fits your harley perfectly. ●MORE SURFACE AREA - Our extra plate friction steel clutch kit increased surface area by 12% to deliver smooth, consistent engagement that reduces the risk of slippage ensuring a continuous ring of friction material. Eliminating the effects of engine braking and improving overall performance, your motorcycle will handle the load with ease, giving you improved clutch performance. Allow smooth, precise shifting. ●HIGHEST STANDARDS - Our sportster extra clutch plate kit is made of premium steel and composite paper material, which has excellent stability and friction properties, ensuring long-lasting reliability and minimal wear. With the extra plate friction steel clutch kit, youll experience improved acceleration, quicker shifting, and better control of your motorcycle. Includes 9 friction plates and 8 steel plates. ●HIGH PERFORMANCE - Our Friction plates feature a maximum groove pattern for heat dissipation and fluid circulation. The clutch friction plate features "segmented" design which increases the oil flow resulting in cooler operating temps and a smoother, more positive clutch engagement. Help eliminate slippage, safe and durable. You can enjoy a superior driving experience with better clutch performance. ●EASY TO INSTALL - Our clutch friction disc steel plate kit is a replacement for your old or broken stock clutch plates and friction. OEM Part Number: 307-30-10011/37911-90. Easy to install just remember to remove the flat and conical ring after removing the stock clutch pack! Install a friction disc into the clutch shell first, then alternate steel discs and friction discs. Keep your motorcycle working smoothly with new clutch friction plates.