York JD Flat Type Rear Sprocket for Harley J Models – 8-Tooth Spline, 530 Chain

Designed for vintage Harley-Davidson J models from 1915 to 1929, the York JD Flat Type Rear Sprocket provides a precise fit and reliable power transfer for classic restorations. It features a flat-type black finish and an eight-tooth spline centered on a 12.3 mm base, with a 7/16 inch offset from the spline center to the tooth profile center to optimize alignment for a 530 wide chain.

Not compatible with WR and XR models; verify compatibility before installation. OEM cross-reference 2049-25 confirms drivetrain interchange with original equipment specifications.

Manufactured in Taiwan, this rear sprocket is an OEM-style replacement designed to meet the demands of restoration and maintenance for vintage Harleys, whether rebuilding a historical bike or maintaining an active antique rider.

Fitment and features at a glance:

• Fitment: Harley Davidson J models, 1915–1929
• Spline: 8-tooth with a 12.3 mm base
• Offset: 7/16 inch from spline center to tooth profile center
• Chain compatibility: 530 wide chain
• Finish: Flat type black
• Origin: Taiwan
• OEM cross reference: 2049-25

Installation requires compatible tools. Accessory items such as the Mini Motorcycle Lift Tool, 45 Tooth Splined Rear Sprocket, and Wheel Lug Allen Wrench Tool are recommended for proper assembly and maintenance.

Flat type black finish 48 tooth rear sprocket features holes as original with a splined center hole.

The York JD Flat Type Rear Sprocket is designed specifically for vintage Harley Davidson J models from 1915 to 1924, ensuring a precise fit and reliable performance. Crafted with a 12.3mm base and an 8-tooth spline, this sprocket is built to meet the demands of classic motorcycle restoration and maintenance. Its large spline type is incompatible with WR and XR models, making it essential to verify compatibility before installation. The sprocket features a 7/16 inch offset from the center of the spline to the center of the tooth profile, optimized for use with a 530 wide chain, providing smooth power transfer and durability. Manufactured in Taiwan, this OEM cross-referenced part ensures quality and compatibility with original equipment specifications. Installation requires compatible tools, and accessory items such as the Mini Motorcycle Lift Tool, 45 Tooth Splined Rear Sprocket, and Wheel Lug Allen Wrench Tool are recommended for proper assembly and maintenance. Whether restoring an antique Harley or maintaining an existing vintage motorcycle, this rear sprocket offers dependable performance and ease of installation for enthusiasts and professionals alike.

Features:

• Spline Type: Large spline not compatible with WR and XR models

• Spline Count: 8 tooth spline with a 12.3mm base

• Offset: 7/16 inch from spline center to tooth profile center

• Chain Compatibility: Designed for 530 wide chain

• Country of Origin: Taiwan ensures quality manufacturing

• OEM Cross Reference: 2049-25 for compatibility

• Fitment: Fits Harley Davidson J models from 1915 to 1924

Fitment:
Harley Davidson J 1915
Harley Davidson J 1916
Harley Davidson J 1917
Harley Davidson J 1918
Harley Davidson J 1919
Harley Davidson J 1920
Harley Davidson J 1921
Harley Davidson J 1922
Harley Davidson J 1923
Harley Davidson J 1924
Harley Davidson J 1925
Harley Davidson J 1926
Harley Davidson J 1927
Harley Davidson J 1928
Harley Davidson J 1929