Archive for May 29th, 2015

Michelin Pilot City Tire Bead-Carcass Joint Failure

A year or so ago, I picked up a Michelin Pilot City tire (700x32C) to see how they compare with the twice-as-expensive Schwalbe Marathons we’ve been using on the Tour Easy recumbents.

Having replaced a worn-out Marathon last summer, this was unexpected:

Michelin Pilot City Protek tire - blown bead

Michelin Pilot City Protek tire – blown bead

I’d blame that failure on overpressure, but I’ve been running the back tires around 70 psi, well inside their 87 psi (that’s a nice, round 6 bar) sidewall rating.

Being able to swap a back tire in the Basement Laboratory Repair Facility made up for a lot…