Skip to product information
1 from 6
WOLFTOOTH

WOLF TOOTH MKØ Upper Cup for Headset 1"1/8 IS41

Réf. fabricant : IS41U-5MM-MK0-SGR
The WOLF TOOTH MKØ upper cup was developed for cyclists seeking a cockpit that is light, reliable and visually clean. Part of the MARKZERO... Read more
Regular price 199,90 €
Regular price Sale price 199,90 €
View full details

Description

The WOLF TOOTH MKØ upper cup was developed for cyclists seeking a cockpit that is light, reliable and visually clean. Part of the MARKZERO range, it benefits from a premium design produced in small batches with particularly refined CNC machining. This approach delivers a distinctive finish while improving the component's overall performance.

Thanks to its SLAMMED design, this upper cup features an extremely low stack height of just 4 mm, promoting a lower riding position. Compared to the brand's Premium models, this design achieves a 44% weight reduction without compromising robustness or durability.

Made in the United States at the Wolf Tooth workshop in Minnesota, it is machined from 6061 aeronautical aluminium renowned for its excellent strength-to-weight ratio. Its exclusive aesthetic highlights CNC machining marks and the Shadow Gray finish, signature of the MKØ series.

Protection against the elements is provided by several sealing technologies, including an O-ring around the fork steerer and a custom moulded top seal effectively protecting the bearing. The cup is supplied with an Enduro Stainless Steel stainless steel bearing, a top cap and a specific hollow bolt to ensure durable and smooth operation.

Ref: 15957868642684

Informations techniques

Type: Upper cup for integrated headset (IS)
Range: Wolf Tooth MKØ / MARKZERO
Use: MTB, Gravel, Road
Compatibility:
IS41/28.6 – Stack 7 mm
Effective stack height: 4 mm
Material: CNC machined 6061 aluminium
Bearing supplied: Enduro Stainless Steel sealed
Sealing:
Anti-infiltration O-ring
Custom moulded upper seal
Wolf Tooth multi-layer protection system
Weight reduction: 44% lighter than Wolf Tooth Premium models
Weight:
IS41: 29 g
Bearing angle: 36° x 45°
Colour: Shadow Gray
Upper cap included: Yes
Specific hollow bolt included: Yes
Star nut included: Yes (aluminium or steel steerer only)
Manufacturing: USA – Minnesota
Cap tightening torque: 2 to 3 Nm maximum

Informations prix

*Supplier recommended retail price in March 2026