Re: Mavic MA 40 Rims -Looking for some Info and reviews on t
Fact.
Prior to keith Bontrager cutting down and re-rolling a Mavic Ma2/40 road rim, all mountain bike rims were considerably wider.
It was felt mtb rims of the time carried unnecessary weight, and less strength.
Once KB had proved the point, Mavic and others followed suit.
The Ma40mb was born.
The Ma40 mb, was avaliable a long time before the more modern M231, if my memory serves.
By the time 91 came, it was the industry standard. everybodys rims were narrower, and the ma40 was used by many for its better spec"d bikes. Orange included.
The pics below, show a Ukai um20 rim, the narrowest rim, i could find at the time, prior to KBs roll downs, as used on the TBG konas.
the following two pics show original Bontrager Rolldowns
the last pic, an Original Mavic Ma40mb, "mountain bike specific"
Hope this helps.