JT Sprockets - Rear Twinstar Category_Tail Lights The KOSBA-B OS-BASE is an

The KOSBA-B OS-BASE is an 'over-the-seat harness' for mounting OS-6

Wi dth: 81 mm

Brand new ignition cap coil

while allowing for a healthy evaporation of perspiration

JT Sprockets - Rear Twinstar Category_Tail Lights The KOSBA-B OS-BASE is anThe 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