With this model

Suits 5 to 12-speed cassettes and freewheels

4mm and 31

If you ride XC and Trail

Ultegra 8000 and 105 R7000 but a slight modification is required due to a change in the crank arm profile

Burgtec Headset Spacer Kit - Bullion Gold - 2x5mm-1x10mm-1x20mm PLP|EMTB Optimised With this modelYou know when you're looking at your bike and you just can't put your finger on what it is? What's missing? Well, puzzle no more! The Burgtec Headset Spacer Kit is that final piece you've been searching for! Who's this item for: Riders in need of some headset spacers or a bit of colour to jazz up their bikes! What's in the box: 2 x 5mm spacers 1 x 10mm spacer 1 x 20mm spacer Pros: Even though they're only headset spacers we don't doubt they are among