Recent content by RebornRider

When the OCD kicks in ...

The Topeak has not been calibrated. Calibration would probably cost more than the gauge, The one I have is accurate from the factory. Sometimes you get lucky! (Why do I claim the Topeak is accurate? Because it matches my Span, which was professionally calibrated recently.) Nothing happened...

Because I had it professionally calibrated 2 months ago. Did you read my post? Edit: Per the letter of accuracy, as-found, the Span was about 2 psi off. This means, prior to being calibrated, the large Span was less accurate than the little Topeak D2.

The Span, which I just had calibrated by a calibration service that used a deadweight tester. I trust the calibration service, who provided a letter of accuracy. The Jaco isn't too far off, but my Topeak is closer to matching the Span at 20 and 30 psi. Edit, FWIW. The Span lives a pampered...

Here's the guts of my Jaco compared to the gauge from the industrial supply company (McMaster).

I thought digital gauges were based on piezo elements or strain gauges, not bourdon tubes. I guess I'll take one of mine apart. Inspection beats speculation! :-)

I have a few inexpensive gauges for bike and car tires, and one expensive gauge that I bought from an industrial supply company. I had the fancy gauge calibrated recently by a company that uses a deadweight tester. The cal report states that the largest error is 1/2 psi over the 10-60 psi...

Mine got trashed in an exciting crash. I bought a replacement from amain cycling. They changed their name - I'll update this post after I find the new name. They carry a lot of Spesh part numbers. Here's their new website: Performance Bicycle - Your Best Ride Yet

My 2019 does that when I rotate the crank to clean the chain. I have the old connector style that can by popped out a little bit - enough to break the connection but the two connector pieces stay in contact. This prevents the connector and cable from getting twanged by the rotating crank. If...

I'll have to do some digging to find the receipt, but it was roughly a kilobuck. This includes sourcing a replacement crank because mine was severely pitted, the regular rebuild labor and parts, and Bearingman's upgraded parts.

That's what I did. Other than being very expensive with all the upgraded parts, I'm happy with the result of the repair/upgrade.

Maybe this elevation graph will explain my situation. Quite a bit of descending from mile 15 to about mile 17.5. Even when I don't encounter walkers, each of the steep segments ends with a tight, slow 90 degree turn.

I share the trails on my regular ride with walkers, their little kids, and their dogs (usually with no leash). There are some long, steep descents, and it seems as though I always encounter the walkers on those descents. That means slowing from 25-ish mph to maybe 5 mph so I can pass them...

I'm pretty sure that is power delivered to the motor from the battery. Motor power delivered to the crank sprocket will be less than that. I don't know how efficiently the Brose motor converts electrical energy to mechanical torque. A quick search for "typical dc motor efficiency" suggests...

I didn't think this thread was going to get this many replies - thanks for the chuckles! I agree that I probably heard a phone ring tone, but the rubber duck and chicken look like much more fun. Edit: Steve, one of the Amazon listings included a customer video. The handlebar duck in that...