JT Twinstar Rear Sprocket T49

Description

The JT TWINSTAR range of hybrid Steel/ Aluminium sprockets are made from two separate materials to provide light weight, long life and enhanced power transfer in even the hardest race environments. The outer ring is made from JTs High carbon steel blend as used in their regular steel sprocket range. This steel has been tempered using JT’s heat induction technology to achieve material hardness that last up to 6 times longer than the best aluminium sprockets.

The inner is made from lightweight aviation grade Ergal 7075-T6 aluminium, the same grade as used on the JT RACELITE range of alloy sprockets. Precision made using state of the art laser cutting and CNC machining resulting in a lightweight race proven design.