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A bit of news: LBS just said spec confirmed time is only stored in the H3 display. They are sending a new V2 version and want my old one back to analyze.

I had a class 1 bike (turbo como 3.0) and now a class 3 (turbo Vado SL2). Both have same motor power and I find I ride about there same speed. - 12 to 18 mph depending on my mood and traffic. On some MUPs I get passed by acoustic road bikes going much faster. A related question: has anyone...

It is newish. I got it in February. Only has 153 miles on it.

I check my bike every morning. If the clock is wrong I connect to the app and that resets the time. In the 24 days I've had my bike back from the LBS, bike turned itself on 3 times, clock has been wrong 9 days, right 16 times. Once when the bike turned itself on the clock was right, twice it...

After nearly 2 weeks, LBS found a loose connection between headlight and wire harness. Took the bike home last Thursday (5/14), clock is still wrong every morning, no auto turn on or error messages yet. Repairing with phone/Specialized app resets correct time. LBS is conferring with...

About a 6 weeks ago LBS replaced display, thumb switch and associated wires. (all one part). Worked perfect until this week, one auto turn on, several days of clock display wrong and a motor error asl2-m-20992 which says communication between tau and motor briefly interrupted. Sounds like a...

I was always a casual rider, ride to the coffee shop, ride around the camp ground, etc. Always in flat Michigan or Florida. Moved to Nashville at age 68 and quit biking due to the hills. During the Covid lockdown got the itch for an Ebike and bought a Specialized Como. I loved riding it and...

A quick test showed Pm max on the display to be about 250 watts at about 40 cadence. Very hard to hold a steady low cadence. The Spec data shows 210 watts for 40 cadence and 255 watts for 50 cadence so the very short test is in the ball park with Spec's chart.

Just went for a quick ride to be sure - selecting "Motor Power Mechanic" for the display. In 100/100 tune it's easy to keep motor power maxed out. I rode for about 1/2 mile lightly dragging the brakes to keep speed in check. Motor power mechanic was almost always above 300 watts with max I...

The Spec app specifically defines Pm mechanical as one of the data items you can put on the display. In my experience the highest number I've seen while riding is a little over 300 watts. The .fit file resulting from recording a ride has a field called "motor power (watts)" that maxes out at...

John, any update?

I have a new SL2 5.0. About 4 weeks old, 60 ish miles. Does exactly the same thing. Happened 2 times this week. Maybe related, the LBS swapped the stock handlebar for a new one with more rise. I helped the mechanic do it. It is quite tricky to get the two wires for the light and display...

Well it took awhile but here's my final answer from a couple of weeks of recording test rides, downloading .fit files, massaging the raw data and charting Pr vs Pm in many tune settings. Spoiler: the data doesn't remotely agree with our assumptions based on the Spec tune tables. I'll post the...

Straight line is almost as good a fit

And here's the new efficiency function based on the Pm max electrical vs cadence shown in the prior post. A lot less curvy, as you suggested it ought to be.

New info regarding efficiency. Thanks @mschwett for suggesting getting a lot more low cadence 100/100 data. Big surprise to me anyway, at 100/100 and Pr above 85 watts the controller does NOT just dump in full voltage regardless of cadence. Just as with Pr vs Pm, there is a linear ramp up to...

Not at all, just ride the brakes.

The Spec mechanical power vs cadence is significantly curved. If you accept that the electrical power input is constant across the same cadence range then the efficiency curve is going to have the same shape. PS, I’m taking my bike in to get the new 2” more rise handle bar this afternoon and...

You can see the spec chart has a good bit more curvature. I did my best to match the spec chart in my spreadsheet to figure out an efficiency vs cadence function to use to adjust all my Pm electrical to Pm mechanical..