Gripster UP 1.60

GRIPSTER UP 1.60' The Gripster UP prevents punctures, or more precisely the tearing of the inner tube valve, which occurs when your tire spins on the rim. The wheel spins: If you have ever seen a tire spin on its rim, you know the damage it can cause to the inner tube valve: it gets cut and you end up with a flat. To avoid this phenomenon, you can install a Gripster UP in your rim, it will press your inner tube against the tire which will prevent the rim from spinning without the tire. What size for my motorcycle? There are 3 sizes of Gripster to fit front and rear wheels, and cover all displacements. 1.60' For front wheels regardless of displacement, and rear wheels for 65cc motorcycles 1.85' For rear wheels of 125 2T/4T and 250cc 4T 2.15' For rear wheels of 250 2T and 250cc+ If you have an 85cc, you will need to choose between the 1.60' and the 1.85' depending on your wheel size.