The Smell of Molten Projects in the Morning

Ed Nisley's Blog: Shop notes, electronics, firmware, machinery, 3D printing, laser cuttery, and curiosities. Contents: 100% human thinking, 0% AI slop.

The New Hotness

  • 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…