Month: April 2026

On our page https://sheldonbrown.com/flats.html, we now have a slo-mo video of a bicycle riding over a cattle guard, showing how the tire can compress almost all the way to the rim without damage.

Reader Howard Phillips has provided some updates on repair services. And we continue with out step-by-step instructions on DIY matching good leather from one saddle with an undercarriage from another.

Thanks to John Thurston, we have a PDF of how to overhausl the Sachs 3×7 hybrid-gearing hub. Most parts of this hub are the same as the H3015 hub, the version without a coaster brake in the T3 series.