Wolf Tooth "Premium" MTB Headset Top Cup - IS42/28.6
- Weight : 0.05kg / 0.11lbs
- Packaging Unit: 1 Set
- Product ID (PID): 39416
- Product safety
Weight
Source: BMX Glossary
Printed: 11/05/2026
The Wolf Tooth "Premium" MTB Headset Top Cup - IS42/28.6 is the top half of the Wolf Tooth Premium headset for frames with an IS42 integrated headset (42 mm bearing seat on top) and a fork with a 1 1/8 inch steerer, machined from 6061 aluminium in Minnesota. Wolf Tooth sells top and lower cups separately, so you replace only the half your frame needs and mix colours freely. Inside is an Enduro stainless steel bearing with a lifetime warranty, an O-ring on the steerer and a lip seal over the bearing keep water out. The stem cap with integrated 5 mm spacer, the aluminium bolt and a star nut are included; a carbon steerer needs a compression plug instead of the star nut. The 7 mm top cover gives an 8 mm stack. Not for Specialized mountain bikes and the Campagnolo Hiddenset standard.
Facts: Wolf Tooth "Premium" MTB Headset Top Cup - IS42/28.6
- Material: Aluminum 6061, CNC machined
- Size: 1-1/8" (28.6mm), IS42/28.6 (integrated, 42 mm bearing on top), 7 mm cover = 8 mm stack, cap 45.8 mm outer diameter
- Bearing: Enduro stainless steel cartridge bearing, sealed, 36 x 45 degree bevel, lifetime manufacturer warranty
- Scope of Delivery: 1 headset top cup with bearing, stem cap with integrated 5 mm spacer, aluminium bolt, star nut
- Extras:
- O-ring on the steerer and lip seal over the bearing
- star nut for steel and aluminium steerers only, a carbon steerer needs a compression plug
- stem cap bolt torque 2-3 Nm
- top and lower cups sold separately
- not for Specialized mountain bikes and Campagnolo Hiddenset
- weight 52 g (manufacturer)
- made in the USA
