Rock Shock Sid Lux 210 X 50. I got it for my Stumpjumper but it didn't fit. Really good condition only has been riding once and changed to different shock.This item is in the category "Sporting Goods\Cycling\Bicycle Components & Parts\Rear Shocks". The seller is "avetis1985" and is located in this country: US. This item can be shipped to United States.