punctures, narrow tyres & commuting.

07-05-2004, 02:52 PM

as a commuting cyclist i use my (trek) bike just 7 miles each way, road,
tarmaced path & uneven paving slabs. Ive gradually been reducing the size
of the tyres (resistance etc - seems logical to me)

Ive got 700x25 (schwalbe) on the back - which is where the problem is
ive been having punctures approx 2/wk- ive got a kevlar tyre & that green
band inside , so i dont think its penetration blowouts.
I've tried a variety of pressures between 70 psi and 115 ( the pressure it
states on the tyre) and am still getting the problem , even replacing the
inner tube each time.
Im getting really hacked off with this.
Too narrow tyre?
wrong pressures ( FWIW im 89Kg) ?
anything else I dont know about ?