30 Series Drive Belt, 669

Replace your shredded or worn-out torque converter belt to restore your acceleration and top speed. The 669 belt is a 30 Series asymmetrical drive belt that serves as the exact factory replacement for specific TrailMaster go-karts and minibikes.

Technical Specs:

• Series: 30 Series (Asymmetrical)

• Belt Number: 669

• Outer Diameter (OD): Approx. 27.375"

Verified Fitment:

• TrailMaster Go-Karts: Mid XRX

• TrailMaster Minibikes: MB200-2 (Equipped with a bearing-style driver) 

• Torque Converters: Standard aftermarket 30 Series TAV Kits requiring a 27.375" OD

Tech Tips for Builders:

• TrailMaster MB200-2 Owners: If your minibike has a bearing-style driver, this 669 is your exact factory replacement belt. However, we highly recommend upgrading to the 725 Belt for better overall performance and engagement.

• Installation: A stretched or glazed belt is the #1 cause of sluggish performance. Always ensure the flat side of this asymmetrical belt is facing the engine when installing!