The complete main bolt and self-extractor for Praxis M24 crank arms: the 8mm hex bolt that clamps the left arm on, and the extractor that lets the same bolt push it off again.

Fitting notes

Praxis specifies 50Nm for the main bolt (8mm hex) and 20Nm for the self-extractor. Praxis updated this bolt and extractor in August 2026 and says the new version is backwards compatible with its older M24 cranks. The two generations take different hex sizes to remove the extractor, so check which one you have before reaching for a tool. Fitting is a separate workshop service, and the Tune Cycles workshop can fit and torque it for you.

Compatibility & fit

Praxis fits this bolt to all its M24 cranks and to many of its eCranks. This is the standard kit with a 15mm thread. The Praxis Type 5 eCrank takes Praxis's shorter 11mm kit instead, so this one is not for it. It does not fit Praxis M30 or ETOR cranks. If you are not sure which bolt your crank uses, ask us before ordering.

Praxis warrants its components to be free from defects in materials or workmanship for two years from the original purchase date, to the original owner with proof of purchase. Normal wear and tear, damage from incorrect installation or the wrong tools, crash, impact, abuse and any modification are not covered. This is in addition to your rights under the Australian Consumer Law, so keep your proof of purchase. For warranty support, return the product to Tune Cycles and we'll manage the claim with Praxis's Australian distributor.
  • Main bolt and self-extractor in one kit
  • M15 x 1.0 thread, 15mm long
  • 8mm hex to fit and remove the crank arm
  • Main bolt torque 50Nm; self-extractor 20Nm
  • Fits all Praxis M24 cranks and many Praxis eCranks
BrandPraxis
PartMain crank bolt and self-extractor kit
FitsPraxis M24 cranks; many Praxis eCranks (not Type 5)
ThreadM15 x 1.0, 15mm length
Tools8mm hex (main bolt)
TorqueMain bolt 50Nm; self-extractor 20Nm
Praxis codeTP-0024 (updated 2026 version: TP-0024.2)
SKU DSG-PXTP-0024
Brand Praxis
Shipping Weight 0.0300kg
Shipping Width 0.250m
Shipping Height 0.100m
Shipping Length 0.400m