Originally Posted by
HillRider
One approach is to drive just one rear wheel and let the other one turn freely.
you've never moved around by wheelchair, have you......
it would just spin in a circle with one wheel drive....
the OP would be better off to use a ratcheted limited slip of some variety.... and the inside wheel of the chair will lose traction in any sharp cornering... WC's are kinda top-heavy....
Also... check with some WC racers for inside info... and also hit up the Recumbent and adaptive cycling forum on this page...
i've had some experience with wheel chair mobility... and those electric chair trikes too...
build a single rear wheel trike... no differential needed... use a bmx sized fat tire at the rear, and two 12 1/4" wheels in the front.. and you'll need to steer the rear wheel somehow... or both front wheels...