Originally Posted by
rekmeyata
Try using this calculator put out by Michelin based on an old true and tried formula; just use the middle calculator not the first or third one; see:
http://www.dorkypantsr.us/bike-tire-...alculator.html also follow the links if you want to know which percentage ratio to use. Make sure you include your total bike weight including bottles, seat bag etc and then your clothed weight.
Tried the front lowered to 50 psi today, no discernable drop in speed or increase in drag/effort required. Front tyre hummed a bit more which I guess is an indication of better contact with the road and it felt a bit more stable at speed.
Steering still feels a bit light not sure if this is due to the more upright geometry of the hybrid or not.