Was about to get the frontwheel of my 2008 NT for a new 90-90-21, so loosened 1st axle-nut on the left....no prob!!!

Then the two on the right hand side, tried diff. kinds of sizes allen-keys, 7/32 to big and 3/16 to small .....both was a no-go!!!

Anybody knows what size it is???

 

Probably metric. The front suspension is showa.

 

Metric for sure.

 

Yup, it was metric,..... size 5 allen!!

Never gave it a thought that HD was using metric, didn't want to fvck up.

Thnx for the replies anyway....