Widen mobility scooter axle

[RZ1]

I need to try to widen the axle of a mobility scooter which is being used to make the kids a ride on car.

I’m struggling with coming up with a way to widen the rear axle by an inch either side.

Wider tyres won’t help as I won’t be able to get the nut back on to secure the new tyres, any ideas how I can do this?

[RZ1]

J4CKO said:

Internally threaded bar of the same diameter, attach to the existing thread, then add a piece of threaded bar into the other end to replicate what the wheel is fixed to,and I would run a bead of weld around having first chamfered a little off the edges, then weld into the gap created.

https://www.ebay.co.uk/itm/111834853061?itmmeta=01...

The only issue with this is that the current wheel has a slight notch cut out, almost like a key which ensure the axle spins the wheel.

Would have to see if I can replicate the notch onto the new piece

[RZ1]

Bill said:

Catnip64 said:

It appears to have a hub, so why not fit spacers between that and the wheel?

This seems easiest. And does turning the wheel round help as well?

Wheel spacers won’t work as I can’t get the nut back on to secure the wheel.

Turning the wheel makes the width even narrower

[RZ1]

Bill said:

Can you undo the 4 nuts and removed the hub from the wheel and put a spacer there?

The problem with that is i won't be able to get this nut back on to secure the wheel onto the axle

[RZ1]

Hopefully this helps







I also need to devise some kind of puller tool as I can’t get the central part of the wheel off the axle, its a 3 part split wheel, almost the same as my old BBS alloys from about 20 years ago

Edited by RZ1 on Tuesday 16th April 16:52

[RZ1]

Bill said:

I'd call that a 2 part split wheel and a hub. Bolt the hub to the shaft then use a spacer between the hub and wheel. Then find a suitable (or not) centre cap to cover the hole.

Looks like this could work, have managed to increase the width by 3/4 inch on one side, might need to see if I can find some slighter wider wheels as the ones I’ve got a 3 inch wide.
Currently stretched them to 3 and 3/4 inch as I’ve used the spacer inside the tyre

Edited by RZ1 on Tuesday 16th April 18:02