Motorshop 45 Mainshaft Race for Harley-Davidson RL and W Models

The Motorshop 45 Mainshaft Race is a precisely engineered transmission component designed to fit Harley‑Davidson RL and W models from 1933 to 1940. It helps maintain proper alignment and smooth operation of the transmission, supporting vintage restorations and long-term drivetrain performance.

Note: The 45 mainshaft race does not include the seal.

• Compatibility: Harley‑Davidson RL (1933–1936) and Harley‑Davidson W (1937–1940)
• Origin: Made in Taiwan
• Material/Construction: Durable design for long-lasting performance
• Function: Aids in alignment and smooth transmission operation
• Suggested Use: Pair with #14-0453 Transmission Main Drive Gear Seal for best fit

Accessory items commonly used with this race (sold separately):

• 19-0880 - Engine Sprocket Kit 21 Tooth
• 18-0678 - WR Clutch Hub Nut Kit
• 19-0881 - 16 Tooth Transmission Sprocket
• 14-0453 - Transmission Main Drive Gear Seal

Ideal for vintage Harley restoration projects and maintenance of RL/W transmissions, this part supports reliable operation and longevity of your classic motorcycle’s drivetrain.

45 mainshaft race does not include the seal

The Motorshop 45 Mainshaft Race is a precisely engineered component designed to fit classic Harley Davidson models including RL and W series from 1933 to 1940. Crafted in Taiwan, this mainshaft race ensures reliable performance and durability for vintage motorcycle restorations and repairs. Its robust construction helps maintain proper alignment and smooth operation of the transmission system, contributing to overall motorcycle longevity and performance. Proper installation and pairing with recommended accessory items are essential for optimal results, making this part a vital addition to your motorcycle maintenance toolkit.

Features:

• Material: Durable construction for long-lasting performance

• Compatibility: Fits Harley Davidson RL and W models from 1933 to 1940

• Suggested Use: Recommended with #14-0453 Transmission Main Drive Gear Seal for best fit

• Origin: Made in Taiwan ensuring quality manufacturing standards

• Accessory Items: 19-0880 - Engine Sprocket Kit 21 Tooth, 18-0678 - WR Clutch Hub Nut Kit, 19-0881 - 16 Tooth Transmission Sprocket, 14-0453 - Transmission Main Drive Gear Seal

Fitment:
Harley Davidson RL 1933
Harley Davidson RL 1934
Harley Davidson RL 1935
Harley Davidson RL 1936
Harley Davidson W 1937
Harley Davidson W 1938
Harley Davidson W 1939
Harley Davidson W 1940