Self Extracting Crank Bolts (Pair) to fit the Onza 2004 and KH 2005 Crank and Hub set. Everything you need to service/maintain your hub set. Although not identical, they will also fit on the 2010 Koxx cranks (they are thinner).
M8 x 40mm long hardened extractor bolt (Pair) KH - Self Extractor Ring (Pair) Extractor washers (Pair)
The extractor system does not work on standard crank sets as the extractor ring has a reverse thread When assembly use liberal quantities of grease.