Hey Mike K, does the pulley's gains come primarily from weight loss or from
underdriving. UR's website stated that 80% of the performance gain is from
weight reduction and not due to underdriving. They have three versions of
the crank pulley. The original version which is the solid pulleys is around
3lbs. The second version has holes punched in them and is a little over 2lbs
and the 3rd generation weighs 1lb less than the second which is a little
over one pound. Did you test the new ones? It might make twice the hp as the
old UR pulleys.
> The rest of the pullies only make about 1 hp difference on an SE-R but are
> feelable due to the reduction in rotating weight.
>
> Mike
>
