Polini CVT Belt 738-18.5-28 (Piaggio, Vespa 50)
Description: Polini CVT Drive Belt for Piaggio, Vespa 49/50cc 4-stroke engines. This long-lasting, heavy-duty performance Kevlar belt is designed to have less flex than a regular rubber belt. Size 738x18.5x28.
Installation: 1. Slack the belt by opening the CVT clutch gives belt slack to the variator side. 2. Then install the variator drive face while lifting the slack belt further away from the center boss if done properly should not see any splines between variator drive face slop-side and boss flat-side. Should be flushed together. 3. Then install the existing variator fan, washer, and hand-tight nut. 4. Finally, apply blue Loctite, torque nut to 30-35ft-lbs. For reassurance please consult your manufacturer's variator torque specs.
Include the following one belt.
• Aramid (Kevlar) Fiber Reinforced
• Length: 738mm (Loop 13.8195 in.)
• Top Width: 18.8mm (0.728 in.)
• Groove Angle: 28º
• Made in Italy
• Fit Piaggio 49/50cc
• Fit Vespa 49/50cc
Supported Models: Piaggio Fly 50, Zip 50,Vespa ET4, LX50, Primavera 50 , Various unlisted makes/models
Item Weight & Product Dimensions:
• 0.290 pounds | 14.52” (L) x 0.728” (W) x 0.354” (D)