DX-4 Atv-3200u CoolsterThe Coolster ATV 3175U2 is the perfect utility ATV to get work done. The bigger, meaner version of its 175cc counterpart, this new model sports all the glory of its older sibling plus an upgraded front and rear rack system, more durable and tougher plastic body accessories. Model Number: ATV 3175U2 Engine Type: Single cylinder, 4 stroke, air cooled Displacement: 170cc Max Torque: 9. 2. N. m 6,000r min (N. m r min) Max Power: 6. 5kW 8,000r min (N. m r