
Originally Posted by
north woods gal
Thanks. Will play around with the handlebar position.
Always amazes me how you can so often ride over a ton of junk and not get a flat and then just the smallest thing gives you one. Very rare to get puncture flats due to road debris in our area, thanks to low traffic and folks not littering, much. Also, no nasty thorns in our area, which were a nightmare when I lived in the plains states.
My biggest danger of getting a flat on one of the MTBs or fat bikes is a pinch flat from going too low on the tire pressure and the tube getting pinched between the rim and tire. That usually means a new inner tube, because the inner tube tear is spread out over a large area and the puncture hard to locate. Only had one, this winter, because I dropped the pressure way low, down to the recommended minimum, while the fat bike was in our warm house, then headed out into the frigid cold. That change of temp from toasty warm to zero cold was just enough to drop the pressure even more and half hour, later, got the flat. In the winter, I now only check and adjust pressure when the tires have been out in the cold long enough for the pressure to stabilize to the cold. Just a reminder for anyone else nutty enough to ride in serious cold.

I seriously doubt I'll ever ride in those really cold temps, but you raise a point that I had not thought of. I typically top off my tires outside because most of my bike rides don't start at home so I keep my frame pump in the car. For my car tires, a drop in temp from the 60s or 70s down to the 40s will lower the psi significantly and cause a noticeable drop in mpg. So I suspect that if I pumped up my bicycle tires inside my 70 degree home and then went out to ride in 40-degree temps, there could be a noticeable drop in psi, though not necessarily enough to cause pinch flats.
Of course there won't be a chance to find out any time soon -- we're expecting a heat wave for the next few days, temps in the 90s and humid.
- Gray 2010 carbon WSD road bike, Rivet Independence saddle
- Red hardtail 26" aluminum mountain bike, Bontrager Evoke WSD saddle
- Royal blue 2018 aluminum gravel bike, Rivet Pearl saddle
Gone but not forgotten:
- Silver 2003 aluminum road bike
- Two awesome worn out Juliana saddles