Set of 4 carbon spacer rings ( Pro ) for 1"-1/8" headset - PR320442

Optimise your riding position with the PRO PR320442 set of 4 carbon spacer rings. Designed for 1"1/8 (28.6 mm) standard fork steerer tubes, these spacers allow you to precisely adjust the height of your stem to improve comfort, handling and pedalling efficiency. Made from 3K carbon, they combine lightness, stiffness and a high-end finish to enhance your bike’s handlebar setup.

This kit includes four spacers of different thicknesses (3 mm, 5 mm, 10 mm and 20 mm), offering a wide range of adjustment options to tailor your position to your riding discipline, whether on the road, gravel, mountain biking or cyclo-cross. Weighing just around 12 grams, they are the ideal solution for cyclists looking to optimise their build without compromising on reliability.

Easy to fit, these PRO spacers ensure the stem is perfectly secured whilst adding an elegant and sporty carbon finish. They are the ideal finishing touch for a neat and high-performance build.

Technical specifications

• Brand: PRO
• Product code: PR320442
• Material: 3K carbon
• Compatibility: 1"1/8 (28.6 mm) fork steerer tube
• Included spacers: 3 mm, 5 mm, 10 mm and 20 mm
• Number of spacers: 4
• Weight: approx. 12 g per kit
• Colour: black carbon
• Use: road, gravel, mountain biking, cyclo-cross

Key features

• Precise adjustment of handlebar height
• Lightweight and robust 3K carbon construction
• Compatible with most 1"1/8" headsets
• High-end finish to match carbon components
• Several possible combinations thanks to the four thicknesses supplied
• Quick and easy installation

FAQ

What are stem spacers used for?

Stem riser rings allow you to adjust the height of the stem on the fork steerer tube. They help you find a more comfortable or sportier riding position, depending on your needs.

Are these spacers compatible with all bikes?

They are compatible with bikes fitted with a standard 1"1/8 (28.6 mm) fork steerer tube. We recommend checking the diameter of your steerer tube before purchasing.

Can these spacers be used on a carbon fork?

Yes, these spacers can be fitted to a carbon or aluminium fork with a compatible 1"1/8 steerer tube.

Why choose carbon spacers?

Carbon offers an excellent weight-to-strength ratio whilst providing a premium aesthetic finish that blends perfectly with modern bikes.

Can the different heights be combined?

Yes, the 3, 5, 10 and 20 mm spacers can be combined as required to achieve the desired height.