All Balls Racing Fork Oil Seal Kit 55-143 BMW

The All Balls Racing Fork Oil Seal Kit 55-143 is a replacement seal kit designed for fitment on specific BMW motorcycles. All Balls Racing is a widely recognised name in the powersports aftermarket, producing bearing and seal kits built to meet or exceed original equipment specifications.

This kit is suited to riders looking to restore proper fork function by replacing worn or leaking fork oil seals as part of routine suspension maintenance. It is a straightforward service item for experienced home mechanics and workshop technicians alike.

• Replacement fork oil seal kit for compatible BMW motorcycles
• Manufactured by All Balls Racing, a specialist powersports bearing and seal brand
• Part number 55-143 — confirm fitment against your specific BMW model and year before ordering

Confirm fitment against your exact BMW model, year, and fork tube diameter before installation — part numbers can span multiple applications.
Drain fork oil completely before disassembling the fork legs; dispose of used oil according to local regulations.
Clean fork tubes thoroughly and inspect for corrosion, pitting, or scoring before fitting new seals — damaged tubes will cause premature seal failure regardless of seal quality.
Lubricate new seals lightly with fresh fork oil prior to installation to ease fitting and avoid tearing the seal lip.
Use a proper seal driver or suitable-diameter PVC tube to press seals in squarely; never hammer directly on the seal face.
Refill each fork leg with the correct grade and quantity of fork oil as specified in your BMW workshop manual — oil level directly affects suspension damping.
After assembly, pump the forks through their full travel several times before riding to distribute oil and seat the seals.
Check for weeping or leakage around the fork seals after the first few rides; a small amount of initial residue is normal but persistent leaking indicates incorrect installation or a damaged tube.