TM10 The best variator we have in stock. Includes main Spring, aluminum cover, and roller weights for European race sizes. Before buying please make sure measurements work for your unit: Diameter Internal 20mm, external 98mm. Height external 34mm, Internal 24mm. Weight 20mm length, external diameter 13mm. Total number of roller weights eight (8). Spacer size -length 39mm, external diameter 20mm. Made in Spain For more information visit www.Turbokit.netPlease make sure to measure the part properly for we cannot gaurantee it will work on Chinese clones unless the sizes are the same.You can see a substantial increase in speed by upgrading this part.Please go over measurements since Chinese and Asian made scooters will have some parts that will not fit 100%.