Halo 15mm to 12mm Adaptor Sleeve For Front Hubs

This simple product allows several* 15x100mm thru axle front hub to run with road standard 12x100 thru axle forks.

• CNC machined 7075 alloy tube.
• Anodised finish.
• Lightweight at only 17g.
• 15mm OD, 12mm ID x 100 (98.5mm long)

*Please note: Some 12mm thru axle forks are only compatible with hubs which have end cones with a maximum outer diameter of 19mm. Most conventional MTB based 15mm thru axle hubs use end cones that have an outer diameter of 21mm or larger and therefore will not fit with the smaller 19mm fork slots.

Please check carefully before purchase that your fork will allow your existing outer hub cones to fit with your forks before purchasing the 15 to 12mm Adaptor Sleeve, as the sleeve does not reduce the outer diameter of the hub end cones.  If in doubt please consult your local dealer.

Some 12mm thru axle forks are only compatible with hubs which have end cones with a maximum outer diameter of 19mm.  Several thru axle hubs have end cone outer diameters larger than 19mm (typically 21mm) and will not fit into the recessed area under the hub location lip.

To check the compatibility of your 12mm axle fork with any thru axle hub, measure distance ‘A’ in the diagram. 

If ‘A’ is less than 4.5mm you can only use a hub that has a maximum outer diameter end cone size of 19mm. If ‘A’ is 4.5mm the fork should accept a hub using 21mm end cones.