ITEM NAME:Roller Chain + Guide Tensioner Motorcycle Replacement Part A7E2 Roller Chain + Guide Tensioner Motorcycle Replacement Part A7E2 100% brand new Idler + Spring Guide Roller + Guide Tensioner Suitable for 90cc 100cc 110cc 125cc 140cc 150cc Pit Pro Dirt Bikes Suitable for: For use on channels 420 and 428 Material: Iron + Rubber Color: silver + white Wheel Length: 18mm, Internal Diameter of Wheel: 12mm, Guide Tensioner Inside Diameter: 15mm, Wheelbase: 61mm The package includes: 1x motorcycle guide pinion Only the package above, the other products are not included. Note: light shot and different screens can cause the color of the item in the picture a little different from the real thing. The allowed measurement error is +/- 1-3 cm.