135 Tooth 1-1/8" Rear Drive Belt 40307-00 for Harley Flst Fatboy Deluxe & Fxst

135 Tooth 1-1/8" Rear Drive Belt for Harley Flst Fatboy Deluxe & Fxst

This 135 tooth rear drive belt, sized 1-1/8" wide, replaces OEM part number 40307-00 and transfers power from the transmission to the rear wheel on compatible Harley-Davidson motorcycles.

Overview

This rear drive belt is a direct replacement for the original belt on select Harley-Davidson models, featuring 135 teeth and a 1-1/8" width for reliable power delivery. It is designed for riders needing a dependable rear drive belt for their Fatboy, Deluxe, or FXST series motorcycle. The construction ensures consistent traction and longevity for daily cruising.

Built For Performance

• 135 tooth count matches OEM 40307-00 specifications
• 1-1/8" width provides stable engagement with pulleys
• Reinforced rubber compound resists wear and stretching
• Pre-formed teeth reduce noise and vibration during operation
• Direct fitment for models using the 40307-00 belt

Fits These Machines

• for Harley-Davidson FLST Fatboy
• for Harley-Davidson FLSTC Deluxe
• for Harley-Davidson FXST Softail

On-The-Job Use

• Replaces worn or damaged rear drive belts during routine maintenance
• Suitable for highway cruising and long-distance touring
• Handles stop-and-go urban riding with consistent torque transfer

Specs At A Glance

Good To Know

Q: How do I know this belt fits my motorcycle? A: Check your current belt for the number 40307-00 or count the teeth and measure the width to confirm compatibility with your model.

Q: What is the lifespan of this rear drive belt? A: With proper tension and alignment, this belt can last thousands of miles, but inspect it regularly for cracks or wear.

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