Honda CB125S Hub Offset

Wigdebs84 · L Plate Warrior Joined: 12 Sep 2015 Karma :

Hello all

I'm rebuilding the wheels on my 1975 Honda CB125S basket case and I don't have the measurements for any hub offset. Can anyone help with front and back measurements.

Thanks

stinkwheel · Bovine Proctologist Joined: 12 Jul 2004 Karma :

Bolt the hub in the frame with the appropriate spacers. Find the middle point. See where this lands on the hub. That's your offset.

A steel rule clamped between the fork legs/swingarm legs would be a good tool for this. You can measure halfway and how far offset to either side the hub flanges are.

Don't be too fussy, a slightly wrong offset either way wont upset the handling unless the tyre is rubbing on something. The back wheel in a Yamaha V-max is offset about an inch and a half off the midline of the bike by design.
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