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I'll grant a loose correlation between spousal pressure and logic. Problem is, the correlation between logic and the things I want to do is even looser.

More very exciting racing in 2026 TdFF Stages 5 and 6. Watch extended highlights on YouTube if you can.

Agree with all of that. Stage of life also needs to figure into the fun calculation here. Had great fun as an avid road cyclist in my 20s and early 30s. Lack of bike infrastructure wasn't a big concern back then. Then had tons of fun on fast Japanese motorcycles like the Suzuki GS1100 in my...

Wait, isn't that 3rd photo where your perennial Nemesis puddle used to be?? Pretty scary when things are already that dry in early August. But imagine how much worse it would be if we had global warming! ;^}

Yes, just take the reciprocal of the conversion factor (or your approximation of it) to go the other way. So ½ goes to 2. Many can double or halve numbers in their heads, so rounding this conversion from 0.517 to 0.5 = ½ is a reasonable way to convert without touching your phone. The relative...

The 2026 TdFF yellow jersey changed hands on today's hilly Stage 3 in a most unexpected way. The new wearer is Sigrid Haugset, a tiny 27 year-old Norwegian National Champion with Uno-X who looks like shes 12. But don't let that fool you. She just rode away at 88 km out and was never caught. Her...

Study: Ebike injuries growing exponentially That's the headline from a recent issue of The Coast News, a regional weekly covering coastal San Diego County. Ebike adoption has been high across all age groups here — especially among kids. Full text below. Alarming stats and trends from 2018 to...

Exciting bunch sprint finish to 2026 TdFF Stage 2. Never guess who won.

I'd combine rides and chores more often if I were willing to either (a) leave my precious Vado SL 1 locked up outside stores, or (b) do the ride parts on my clunky old white hub-drive instead. The fact that the SL's effectively irreplaceable now doesn't help. I gather that you've come to terms...

Yeah, those dry runs are pretty frustrating. And the "run" part isn't always figurative. On a tangential note, a urologist colleague I used to work with, one Dr. Lee, had a license plate that read 2PC LEE

As an old guy, don't know much about later Star Wars movies. Today learned of one called The Force Awakens. First thought was that Luke Skywalker started getting old, and his prostate started getting him up at night to pee. Trust me, definitely a force that awakens.

Tour de France Femmes (TdFF) started today. As last year, they're calling it the TdFF avec Zwift. What's Zwift got to do with it? Amazing final uphill acceleration by Lorena Wiebes left everyone else in the dust. Love her interviews. Total badass on the bike, fastest female sprinter in the...

Not aware that an unmotorized bike has an optimal cadence or ground speed of its own. The smallest cogs on a cassette are generally the least efficient mechanically, but I don't think by much. Gears resulting in excessive chainline angles are also less efficient. Sounds like your friends are...

Largely correct. Mid-drive motor efficiency is tied only to cadence, hub motor efficiency only to ground speed. Neither generally knows or cares what gear you used to reach that cadence or speed. Electric motor efficiency ultimately comes down to motor shaft speed — generally the higher, the...

Would love to have that kind of experience to draw on — no doubt another very useful lens on your riding. I say, the more lenses, the better. I rarely stick to a planned route, much less a script on how to ride it. Hard to deal with that in any conceivable pre-ride range prediction scheme...

Also decided to go this route with the same Cycplus pump. Takes up about the same saddle bag space as the CO2 system it bumped. Passed a few simple tests in the garage, and the pressure readout agrees with my Topeak floor pump. We'll see how it reseats a tubeless tire on the roadside —...

Yes, adding assist to a cycling model introduces a whole new set of parameters and riding dynamics to wrestle with. It's important to understand which model parameters can do the most damage. At all but the lowest speeds, CdA is one of them. It's legit to ask what good all this modeling does in...

We've discussed the accuracy of this kind of modeling several times. A lot of the uncertainty comes down to how well really know certain key model parameters like system mass M, CdA, air density D, and the coefficient of rolling resistance Crr. These are generally not easy numbers to measure...

Agree with every word of that. Would only add that even if you're familiar with bike repair on the mechanical side of your ebike, there are likely proprietary parts and diagnostic tools for electrical problems. These are best dealt with by an authorized dealer. So, test and buy locally if at...