SLIDER 15X12 3GR SN MRS SLIDERS SN® “MRS – MAXIMUM Ratio System” roller weights are a genuine revolution in the roller weight field. The nylon fiber rollers feature a unique shape that dramatically reduces wear and subsequent deviation of scooter performance. Expect better performance from your scooter, period. No matter what stage you are in upgrading your scooter, simply add SN SLIDER weights and you will see more speed and power in your bike! Over 20% longer lasting than traditional rollers of composite material. SN Sliders weights are the most advanced weights available. These sliding rollers perform better than standard round weights by allowing the variator to open farther for higher top speeds, and last longer with less performance material loss. The weights have several unique features such as their material containing nylon for better performance. Made ofnylon material Low Friction/Low Wear/High temperature resistance Aluminum compatible works with aftermarket KOSO, Malossi, Polini, NCY, MRP, POSH, DELTA, as well as SN and OEM Variators Fastest roller weights available The shape allows the roller to travel greater distances into the front pulley variator angle along the roller tunnel and enables the user to modify the low CVT ratio by +3% and high CVT ratio by +7%. The result is that the rider can expect enhanced speed and acceleration. SN® HRS rollers are available from 49cc to 800cc CVT combos. Contact your local dealer about an SN HRS UPGRADE TODAY! 169-216 Also check out SN Variators and SN Clutches for even more performance! Sliding roller weights eliminate abnormal wear, prevent reduction gear ratio Deterioration, prolong the useful life of the transmission, and have the availability to adjust reduction gear ratios as well as driving performance. Sliding Roller Weights are also adapted to compensate wear automatically, to adjust by itself to move further outward in a movable drive pulley half and to make the vehicle reach a higher maximum vehicle speed.