Dr Pulley Performance upgrade kit for Aprilia SR/STORM/SXR models (Race Tuned : Very Strong and Smooth Acceleration)

Dr Pulley Performance upgrade kit for Aprilia SR/STORM/SXR models Box contains - set of 6 * clutch rollers set of 1 * Spring set of 3 * MSD Spring Genuine imported Sliding Rollers from Dr. Pulley Race Tuned…made of specially formulated material to withstand the extremes of race like environment also, weight is optimized to extract max performance. No matter what stage you are in upgrading your scooter! Expect awesome acceleration from your scooter, period. Performance rollers suitable for Vespa/Aprilia 150 .Expect better performance with faster acceleration from your scooter, period. Note: Installation will require for the engine CVT cover to be opened for the installation. Preferable by a mechanic or someone knowledgeable with scooter engines. For maximum gain in acceleration