Gusset S2 Mix N Match Top Headset Cup

Black anodised alloy.

Various sizes;

• 22.2 - 25.4mm - for BMX to MTB stems 
• 26.0 - 31.8mm - for Standard Road size to 31.8mm oversize
• 25.4 - 31.8mm - for Standard MTB size to 31.8mm oversize