Planet X On-One Big Dog Headset Bearing Kit Whyte Please refer to the model

Please refer to the model image supplied in this product to check against

Treat your bike to the ultimate MAX Full Complement Bearings from Spark Sports

For all bikes using the IS41/IS52 Headset Bearing Kit

For all Scott Scale & Spark bikes (Pre 2022)

For Mondraker Crafty Alloy Bikes

Planet X On-One Big Dog Headset Bearing Kit Whyte Please refer to the modelBoth the upper and lower headset bearings, two bearings included in sale. For all Planet X On One Big Dog Bikes Upper Bearing MH P03K Lower Bearing ACB518K GCR15 High Carbon Chromium Bearings: Chromium offers a corrosion resistance to the bearing, allowing you to get more use out on the trails and less time in the workshop changing bearings again due to rust and seizing. Buna NitrileRust Resistance Seals: Prevents moisture getting inside the bearing.