Wolf Tooth MTB Thru Axle - Rear 12mm X-12
- Weight : 0.04kg / 0.09lbs
- Packaging Unit: 1 Piece
- Product ID (PID): 39701
- Product safety
Weight
Source: BMX Glossary
Printed: 11/06/2026
The Wolf Tooth MTB Thru Axle - Rear 12mm X-12 is the rear thru axle for frames with the Syntace X-12 system, as used by Specialized, Cannondale, Intense, 3T, Canyon and others. It replaces a lost or damaged stock axle and differs from the other Wolf Tooth axles by the conical stainless steel washer under the head that the X-12 dropout requires. The captive washer reduces friction on the dropout face: more of the tightening torque becomes clamping load, the frame stays undamaged and the axle does not gall when you remove it. Machined from 7075-T6 aluminium, 5 mm hex, 12 Nm max; the 159 fits 12x142, the 165 fits 12x148 Boost. Axle length is independent of hub dimensions, Wolf Tooth provides a printable measuring guide; the length may differ by 2 mm. Apply a little grease to washer and threads when installing.
Facts: Wolf Tooth MTB Thru Axle - Rear 12mm X-12
- Contains: 1 x thru axle
- Material: 7075-T6 aluminium, conical stainless steel washer
- Diameter: 12mm
- Hub Spacing: 159 mm: 12 x 142 mm; 165 mm: 12 x 148 mm Boost (manufacturer, still measure the axle length)
- Length: 159mm or 165mm
- Thread Pitch: M12 x 1.0, thread length 12 mm
- Tool Interface: 5 mm hex key
- Fits to: frames with a Syntace X-12 rear thru axle (e.g. Specialized, Cannondale, Intense, 3T, Canyon), length +/- 2 mm; check the length with the manufacturer measuring guide
- Extras:
- captive conical steel washer under the head against friction and galling
- 12 Nm max
- weight 42 g (159 mm), 43 g (165 mm), manufacturer
- made in the USA






















