The Carlisle AT489 MST tyre is original fitment on Polaris machinery. It is a premium ATV tyre which provides excellent traction, good shock absorption and high levels of stability without the usual tyre wear associated with these characteristics. The profile of the AT489 has been designed to give a flatter footprint for extra ground contact, resulting in masses of grip without an unnecessarily rough ride. The AT489 works well on both 2 wheel drive and 4 wheel drive quad bikes. This metric size 280/60-12 will replace imperial size 25x11.00-12 tyres. It has a load/speed rating of 335kg at 68mph and a maximum inflation pressure of 22psi.