In Stock & available for UK next day delivery
The standard axle on the Matrix 3 Truck is 50mm long, if you need a bit more room for gearboxes or just want a wider track on your board. They are sold each and you would need two for a truck. To change them you remove the small grubscrew near the end and then insert an allen key in the end of the axle and unscrew (it is tight to start with). Then screw in the new axle tight and add in the grubscrew again to lock in place.
The axle is suppled with a 20mm spacer and new wheel nut so you can fit straight on there. See the drawing below showing the size difference.