Originally Posted by
Johno59
The
PR cobbles are horrendous, Unlike a normal urban cobbled pavement many of the rural pave on the Hell of the North have an inch of space between individual stones.
Team-by-team breakdown:
Omega Pharma-Quick Step
Wheels: Zipp 303 Firecrest
Tire: FMB cotton casing
Size: 27mm
Measured size: 28.2mm
Pressure front: 59.5 psi Boonen, 58 psi Chavanel (58 psi or less in the rain)
Pressure rear: 62.4 psi Boonen, 59.5 psi Chavanel
Sealant: no
Movistar
Wheels: Campagnolo Hyperon
Tire: Continental Competition
Size: 27mm
Measured size: 27.8mm
Pressure front: 85 psi
Pressure rear: 87 psi
Sealant: yes
...
The rocks on the
PR are IMHO the ultimate case for soft tires.
I still can't see the 60 psi of your local black-top riding speedsters.
I thought I recognized this article. It's from
2012, so the big story at the time was pros running less than 100 psi!
Note that most of the riders were still on 25-27mm tires. Now that 30-32mm tires are more accepted, I'm sure more of them are pumping up in the 60s.
