New ipod based Gear Calc

Even brings up equivelent gear ratios.

it tells me that a 51/15 is 280 gear inches

i just use this chart

OMG you must have penny farthing wheels!!!

Funnily enough gear inches are derived from the size of a penny farthing wheel.

Um… Yeah.

I knew that

That’s why I said it

Everyone knows that :stuck_out_tongue:

I didn’t know that