wheelbase

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I would like to get a option changing wheelbase.

This is rear suspension arm.
Width of hing pin hole is 53.5mm.
I cut off edge of hinge pin area 2mm.
I cut both side total 4mm.
Rear suspension arm width becomes 49.5mm.

And I accustom with Doremel.
I tried to adjust several times to get smooth movement.
Put on bulk,off and Dremel and so on.
I already modified rear hub carrier.
It is about 1mm wider than original.
Then I put a 2mm spacer on front a side.0.5mm on rear side.
Therefor hub carrier move backward 1mm.
Then I put a 1mm spacer on front end,a 3mm spacer on rear end.
Totally wheelbase set as original.
And I got a option changing wheelbase more length.

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