Gates Polychain Rear Drive Belt For Harley Touring 1997-2003
Gates Poly Chain: The Carbon Fiber Standard for Heavy-Duty Touring
The Gates Poly Chain® Rear Drive Belt for 1997–2003 Harley-Davidson Touring models is the most advanced final drive solution ever produced for the early Twin Cam and late Evolution era. While standard belts rely on aramid (Kevlar) cords that can stretch and wear under the weight of a fully loaded bagger, the Poly Chain utilizes Carbon Fiber reinforcement. This ensures that your Electra Glide, Road King, or Road Glide benefits from a drivetrain that is virtually maintenance-free.
Patented Carbon Tensile Cord Technology
The heart of the Gates Poly Chain is its carbon fiber cords. This material science breakthrough provides critical advantages for long-distance touring:
- Zero Stretch: Carbon fiber is dimensionally stable. Once the initial tension is set, the belt will not stretch, keeping your rear wheel perfectly aligned and eliminating the need for frequent adjustments during long trips.
- Unmatched Strength: Provides nearly double the horsepower capacity of standard aftermarket belts, making it essential for 88″ and 95″ engines with performance upgrades.
- Instant Power Transfer: The lack of belt “give” results in a more direct connection between the throttle and the rear tire, improving responsiveness when passing or climbing grades.
High-Modulus Polyurethane Construction
Unlike standard neoprene rubber belts, the Poly Chain is constructed from a unique high-modulus polyurethane compound. This material is virtually immune to tooth shear and offers:
- Chemical and Oil Resistance: Superior resistance to road chemicals, grease, and oil that can degrade standard rubber over time.
- Precision 14mm Pitch: The teeth are jacketed in a specialized, low-friction fabric that reduces operating temperatures and drastically minimizes “belt whine.”
- Enhanced Durability: Designed to withstand the high-heat environment created by the exhaust and heavy touring loads.
Fitment and Specifications (1997–2003)
This 139-tooth belt is a direct replacement for 5-speed Touring models:
- Models: FLHT (Electra Glide), FLTR (Road Glide), FLHR (Road King), and FLHTCUI (Ultra Classic).
- Tooth Count: 139 Teeth.
- Width: 1-1/2″ (1.5 inches / 38.1mm).
- OEM Cross-Reference: Replaces Harley-Davidson Part #40024-97.
- Origin: Proudly Made in the USA.
Gates Polychain Rear Drive Belt For Harley Touring
Features
This Gates belt is the same brand of belt used by Harley-Davidson since 1980 due to their reliability
The teeth on the Gates belt has a very slick surface that is easy on the pulleys
The outer surface of the Gates belt is ribbed to help improve flexibility
Belt length is determined by measuring pulley center-to-center
Replaces OEM 40024-97
Made in the USA
| Product Style | AmericanV-twin Item # | Catalog Number | Store Sku | MFR. Product # | Availability |
|---|---|---|---|---|---|
| 1 1/2″ x 139 Tooth | 49878 | 600-629 | 3533 | PC-139-1 1/2 | In Stock: Ships within 24 hours |
This Product Fits
Harley Davidson
Electra Glide Classic FLHTC/I 1997-2003
Electra Glide Standard FLHT/I 1997-2003
Electra Glide Ultra Classic FLHTCU/I 1997-2003
Road Glide FLTR/I 1998-2003
Road King Classic FLHRC/I 1998-2003
Road King FLHR/I 1997-2003





