Bike Headset Micro Adjustment Washer 0.3mm Thin Spacer 28.6mm 31.8mm Fork Steerer Shim Ring MTB Road Bicycle 10PCS

Description

Bicycle Headset Micro Spacer Washer

Designed for precise headset adjustment on bicycle fork steerers.
0.3mm ultra-thin design helps eliminate headset top cover rubbing and improves bearing preload accuracy.

Compatible with most MTB and road bike headset systems.

Product Details

• Type: Headset Thin Spacer Washer

• Material: Steel

• Thickness: 0.3mm

• Size Options:

  • 25.4mm

  • 28.6mm

  • 31.8mm

• Color: Silver

• Quantity: 10 Pieces

Advantages

• Precision micro adjustment

• Smooth headset rotation

• Prevents top cap/frame contact

• Strong and durable steel material

• Easy installation

• Ideal for headset tuning and maintenance

Size Compatibility

25.4mm ID
For 1-inch / 25.4mm threadless fork steerers.

Commonly used on some folding bikes, vintage road bikes, small-wheel bikes and older bicycle headset systems.

28.6mm ID
For 1-1/8-inch / 28.6mm threadless fork steerers.

This is the most common size for MTB, road, gravel and folding bikes. It also fits most tapered forks with a 28.6mm upper steerer.

31.8mm ID
For 1-1/4-inch / 31.8mm threadless fork steerers, for Giant and Liv OverDrive 2 / OD2 headset systems and other compatible 1-1/4-inch upper steerers.

Important: Measure the outside diameter of the upper fork steerer before ordering. The 31.8mm size refers to the fork steerer diameter, not the 31.8mm handlebar clamp diameter.

Suitable for:

• MTB

• Road bike

• Folding bike

• Gravel bike

Package

10 × Bicycle Headset Spacer Washers