The 90-140-15 Steering Head Bearing Kit is a complete replacement kit for the upper and lower steering stem bearings and seals on compatible motorcycles. It uses tapered roller bearings for superior load handling and smoother steering feel compared to standard loose ball-type bearings — restoring precise, confident handling to worn or notchy steering heads.
What's Included?
- 2 tapered roller bearings (cups and cones — upper and lower)
- 2 seals (upper and lower)
Key Features
- Tapered roller bearing design for improved load capacity and smoother steering feel
- Double seal design keeps dirt and water out while retaining grease for extended service life
- Direct replacement for worn OEM steering head bearings and seals
Frequently Asked Questions
When should I replace my steering head bearings? Replace when you notice notchiness through the bars, steering play, or vague and imprecise handling — all common signs of worn steering head bearings.
Why are tapered roller bearings better? Tapered roller bearings handle combined radial and axial loads more effectively than ball bearings, offering greater durability and a longer, smoother service life in steering head applications.
Are seals included? Yes. Both upper and lower seals are included in the kit.
