Front hub conversion kits for jra 3-in1 6-bolt disk hubs including Map 6-bolt and Traildogs. This is the slimmer 6-bolt MTB hub 3-in-1. It converts from 15mm, 12mm, 9mm and QR.
The 9mm is our unofficial conversion and is drilled from a QR end-cap, so it is not included in the "3 option" name or as well finished as the others.
To use your hub as a 15mm thru axle remove all inserts from the hub and the hub will be 15mm.