HardDrive 39mm Upper Fork Bushing Set – Harley FXR / Sportster / Dyna – Replaces OEM 45461‑87 – Premium Japanese Bushings – 820‑52470 – Lowest Price + 10% Off

OVERVIEW

HardDrive upper fork bushing sets provide a direct-replacement solution for restoring smooth fork action and reducing stiction on Harley-Davidson models equipped with 39mm fork tubes. These chassis components correct slider-to-stanchion alignment errors that lead to premature fork seal wear, ensuring reliable suspension performance over extended service life. Designed for precise fitment, this set targets FXR, Sportster, and Dyna motorcycles, delivering a cost-effective upgrade that maintains original factory geometry.

ENGINEERING & PERFORMANCE

Precision-manufactured bushings eliminate internal friction and scoring within the fork stanchions, promoting fluid damper response and stable front-end control. By restoring accurate clearance between the slider and tube, the design shields fork seals from abrasion caused by misalignment, preventing oil leaks and loss of compression. Functioning as a direct replacement for Harley OEM part number 45461-87, the unit bolts into existing mounting locations without modification, returning the bike to factory-specified handling dynamics.

KEY FEATURES

• Replacement upper fork bushing set engineered for 39mm Harley-Davidson front ends.
• Direct match for factory specifications, replacing Harley OEM part number 45461-87.
• Reduces stiction and scoring to improve slide velocity and fork articulation.
• Protects fork seals by maintaining proper alignment and minimizing side-load wear.
• Precision-manufactured in Japan to ensure tight tolerances and durable surface finishes.
• Sold as a pair to support balanced front-wheel installation and alignment.
• Compatible with FXR, Sportster, and early Dyna models utilizing 39mm fork tubes.
• Adapts to custom front ends and aftermarket setups using 39mm sliders that accept OEM 45461-87 bushings.
• HardDrive part reference 820-52470 for easy cross-reference lookup.

TECHNICAL SPECIFICATIONS

• Brand: HardDrive
• Part Name: 39mm Upper Fork Bushing Set
• Part Type: Chassis Hardware
• Fork Tube Diameter: 39mm
• Replaces OEM Part #: 45461-87
• Supported Years: 1982–2005 (Varies by model)
• Compatible Trims: FXR, Sportster, Dyna
• Country of Manufacture: Japan
• Quantity: Sold as a Pair

FITMENT

• Harley FXR (1982–1994, 1999)
• Harley Sportster (1987–2003)
• Harley Dyna (1991–2005)
• Universal — fits any 39mm front end or slider configuration that accepts OEM 45461-87 bushings.

WHY HARLEY RIDERS CHOOSE THIS

Riders choose HardDrive upper fork bushings to eliminate the fork chatter and sluggish response that develop as original parts wear and score the inner tubes. The precision engineering ensures consistent alignment across the 39mm fork sliders, which significantly extends the service interval of fork seals and prevents costly leakage issues. Because this set mirrors original equipment dimensions and bolts directly into standard mounting points, it serves as a reliable fix for high-mileage maintenance without altering the bike's rake or trail. For FXR, Sportster, and Dyna owners seeking predictable handling and restored suspension confidence, this bushing set offers a practical, long-lasting solution grounded in Japanese manufacturing standards.