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Because its fun to know how stuff works!

Final chart, I promise. This shows total power for each dynamic (power not capped) micro tune setting with the rider providing 100 watts in every case. This is probably a more meaningful analysis. I for one could manage a steady 100 watts but not for a very long time. When I get my new bike...

Further combining the two tables and assuming the motor torque multiplier is linear for a given "ease" setting this shows the total, rider and motor power vs ease when pedaling at saturation with E=M.

one more little wrinkle, a bit higher up in that support document there is a graph of motor mechanical power output vs pedal RPM. 320 w is the max at 90 RPM. It drops to 300 w at 80 RPM.

Digging deeper into the rider power / motor power topic, using the Specialized support info linked in Allan's post above: Since the motor produces a maximum of 300 watts at the pedal crankshaft at an 80 cadence, 20/100 means each rider watt is matched by (300/520) 0.58 motor watts 50/100...

Thanks Jeremy. I'm an engineer too and appreciate your very detailed posts on how the specialized motor controller works. My curiosity has to do with this: Lets say I'm riding in ECO (20/20) at maybe 12 mph at saturation. If I want to go faster it's all me. But if ECO is 20/100 all else...

I've been riding my Trek analog bike with 2" stem extender for a couple of years and find it comfortable. The SL2 medium with 60 mm rise bars will have almost exactly the same reach, stack and handle grip height above ground as my large size Trek FX-3. Fingers crossed it's just as...

Allan, thanks for the deep dive into how Mastermind H3 works. I've been riding my Como with 15/20, 50,50 and 100,100 settings. It never occurred to me to set the max motor power to 100% for all settings, just varying the torque multiplier. Definitely going to try that when I get the bike and...

Stefan, I got the medium frame. My height (5'10" but shrinking) and shin length in the Specialized size calculator says I'm right on the boundary between medium and large. I would have chosen the Large to get the higher stack but the LBS owner thought the increased reach would somewhat offset...

I had to give up $500 to get that color. I probably couldn't tell the difference between 4.0 and 5.0. The 4.0. came in gloss green and matte grey. 5.0 in gloss light grey and the blue matte. The matte silver was good looking but my car and other bike are dark grey so I wanted something a...

My kind of ride, stopping for photos and treats!

Ordered the 5.0 today. Honestly the matte blue offered on the 5.0 swayed me the most. LBS said my new bike should be here within a week. With the freezing weather forecasted for the next week or even longer I'm in no hurry.

All the SL 2s have the full function mastermind display mounted in the center of the bars. My old Como had it too. i too like to look at rider power vs motor power

Stefan, thank you for your detailed answer. I like the matte blue color on the 5.0 too but the matte grey on the 4.0 is also good looking. My LBS has the mint green gloss in stock. I’m not a fan. I’ll have to look at the gear ratios of 4.0 vs 5.0. I also like to keep my cadence in the low...

It is the middle child price wise. Do you think riding the CUES 6000 would feel any different from the 8000?

I've been riding a Turbo Como 3.0 for 4 years (~2,000 miles) and enjoy it a lot. In the beginning it was a way to get strong enough (78 y/o, decent shape) to ride a regular acoustic bike. I got a Trek FX3 hybrid (not electric) a couple of years ago and like riding that more. I like the...

Find a bike shop with a convenient place for test rides, go on a winter weekday when you will be their only customer. Ride as many as you can. Do this twice and you will know infinitely more than you do now. If you develop a real interest in riding the first bike you buy won't be your last so...

I realize this is 6 weeks later but thought I'd chime in as I was in pretty much the OP's exact position 3 years ago when I got my first Ebike. Its hilly here in Nashville so maybe not a direct comparison but... I visited a few bike shops on nice winter days (usually no other customers) and...

Maybe I'm wrong about a two hook carrier not working with rear fenders. Click on the link, the saris website shows a bike with fenders on their rack. Under product design they state ... Adjustable arms and wheel trays fit almost any type of bicycle, including those with fenders, mountain...

My Kuat only has a hook for the front wheel. A plastic strap loops around the bottom of the rear wheel to hold the back down. The hook works with the front fender because the front edge of the fender is only a little bit forward of the fork. A rear hook would never work with a rear fender.