JT Sprockets - Rear Twinstar Stock Item:JT Sprockets TwinStar Rear Sprocket T40 Orange 4 x YKK® zipped pockets

4 x YKK® zipped pockets

incredibly tough and tear resistant

heated clothing

Ventilation and reflective details on the back of jacket

Internal compartment with completely waterproof pockets

JT Sprockets - Rear Twinstar Stock Item:JT Sprockets TwinStar Rear Sprocket T40 Orange 4 x YKK® zipped pocketsThe JT Sprockets Twinstar range of Hybrid Steel Aluminium sprockets are made from two separate materials to provide lightness in weight, long life and enhanced power transfer in even the hardest race environments. The outer ring is made from JT's high carbon C49 steel blend (as used in their regular steel sprocket range). This steel has been tempered using JTs heat induction technology to achieve material hardness that last up to 6 times longer than