135T 1 1/8" Rear Drive Belt 40307-00 Fit Harley-Davidson 2001-2004 FXSTBI FXSTI

135T 1 1/8" Rear Drive Belt for Harley-Davidson 2001-2004 FXSTBI FXSTI

This 135T 1 1/8" rear drive belt, referencing OEM cross-reference 40307-00, transfers power from the transmission to the rear wheel for Harley-Davidson models. It delivers reliable engagement for 2001-2004 FXSTBI and FXSTI motorcycles. This rear drive belt is built to maintain tension and alignment over long rides.

Overview

This 135T 1 1/8" rear drive belt is a direct replacement for the original 40307-00 belt on select Harley-Davidson models. It provides the exact tooth count and width to ensure proper drivetrain operation. Designed for 2001-2004 FXSTBI and FXSTI motorcycles, this rear drive belt keeps power delivery smooth and consistent.

Built For Performance

• 135 teeth with 1 1/8 inch width for precise fitment
• OEM cross-reference 40307-00 for accurate replacement
• Fiberglass-reinforced construction for high tensile strength
• Heat-resistant rubber compound for extended service life
• Wear-resistant tooth profile for stable engagement

Fits These Machines

• for Harley-Davidson FXSTBI 2001-2004
• for Harley-Davidson FXSTI 2001-2004

On-The-Job Use

• Highway cruising on softail models
• Daily commuting in varied weather conditions
• Long-distance touring with stable chassis load

Specs At A Glance

Good To Know

Q: How do I know if this rear drive belt fits my bike? A: Verify your model year and exact model code against the listed 2001-2004 FXSTBI and FXSTI fitment before ordering. Confirm your original part number matches 40307-00.

Q: What maintenance is required for this belt? A: Inspect the belt for cracks or wear every few thousand miles and maintain proper tension per your service manual. Replace if any tooth damage or fraying appears.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.