Harddrive 1-1/8" Rear Belt - 137t Oe# 40571-04b — Harley-Davidson Sportster 1200 Custom, Roadster, Sportster 1200 Low (2004-2006)

Harddrive 1-1/8" rear belt with 137-tooth count, a carbon fiber reinforced drive belt engineered for high-demand V-Twin motorcycle applications. Synthetic rubber teeth and backing deliver superior strength, low noise, and temperature stability across extreme operating conditions.

Features

• Carbon fiber tension member for higher strength than aramid alternatives
• Specially treated tooth-facing fabric resists punctures and debris
• Synthetic rubber teeth rated -30°C to +130°C
• Increased flexibility and width stability in synthetic rubber backing
• Made in the USA

Specifications

• Brand: Harddrive
• Manufacturer Part #: 21201900
• UPC: 191361537653
• Tooth Count: 137
• Width: 1-1/8 in
• Length: 14 in
• Weight: 3 lbs
• Country of Origin: USA

Fitment

Designed for demanding V-Twin motorcycle drive lines requiring high-performance belt characteristics and extreme temperature tolerance.

Frequently Asked Questions

What makes this belt different from aramid belts?

The carbon fiber tension member provides higher structural strength and durability compared to traditional aramid-type drive belts.

Can this belt handle extreme temperatures?

Yes — synthetic rubber teeth are rated to perform from -30°C to +130°C, maintaining flexibility and grip in extreme conditions.

Is this belt made in the USA?

Yes, this Harddrive belt is manufactured in the USA.

What is the tooth count on this belt?

This is a 137-tooth belt measuring 1-1/8 inches wide.