Understanding ebike motor 101 for power and torque - watts, nm and watt hours.

[@MILTONATOR]

Excellent video. Just bought my first emtb and I’m a complete noob. Appreciate you breaking this down. Ty

[@EMTBReview]

Glad it was helpful!

[@jimbo4203]

Good stuff man , that's why I love my Turbo Vado SL it doesn't cut off till 28 mph !

[@EMTBReview]

The 20mph speed cut-off is a true downside. I mean, I go wayyyy faster on an analog pedal bike on a downhill. The hard part is commuting to the trailhead. Har to put in an effort. And really can't pedal past 20mph with the resistance.

[@jimbo4203]

I hear that

[@jeanmarc_in_Hudson]

Wow! So well explained thanks for that! Very nice video at the end showing each bike on the trail. 👍

[@EMTBReview]

Glad it was helpful! Took some time to organize my thoughts so i'm glad it was helpful.

[@GermanHoshi]

Great explanation. I really liked the way you talked about the numbers seemingly effortless. Gave me trust that you know what you are talking. Bonuspoints for going the extra mile to include meters so that the rest of the world can understand what this is about 😉 Greetings from across the pond

[@EMTBReview]

Great to hear!

[@bhaskarsubramanian153]

Thank you sooooo much man. I've been watching a lot of videos trying to understand torque, power, watts and all that stuff in relation to bikes and general motor related tools. But it's either way too detailed with too much math that ends up confusing the heck outta me. Your practical examples made it clear and SIMPLE, above anything. P.s I'm trying to build a DIY ebike using electric motor and powertool batteries.

[@tomcagle5324]

Awesome primer Prof. F! Makes it easier for me to explain to others wanting their first E-mtb...other than showing 'em this vid. 🤛

[@EMTBReview]

Thanks buddy!! We need to decipher the ebike code!!

[@tomcagle5324]

@@EMTBReview💯 class 1 especially...I just tell peeps: ✅ no throttle = no burn-out ✅ 20 mph cut off = rare to even get close to 20 mph on most singletrack

[@ElburroE]

Best explanation out here. Thanks!

[@Emtbtoday]

I just got my first ebike the cube 160 action team with bosch smart system all samexas in pivot but not had a chance to take it out yet because of the weather here its driving me crazy but learning how to set 5he sag up just now hopefully after the weekend I'll get out for a first time we're waiting for a massive storm in UK but great video as always

[@weekenddistractions]

Love your channel. I'm hoping to get a mid-drive emtb, but the problem is allowed access to the trails--sigh. Being in my mid 60s, some assist would be most welcome for climbing.

[@SubaruWRC1996]

I've ordered a specialized turbo levo with the 565 watt motor. It is the alloy with a 500-watt hour battery, so i'll have to see how it does but did get a good price on it so i really can't complain but im definitely looking forward to it. Think it assists you upto 20mph

[@keganmowery4223]

Great video! I loved the NM example.

[@EMTBReview]

Glad you liked it! I learned a lot making this video. There’s not a lot of in-depth information on these terms that are commonly used in this ebike category.

[@keganmowery4223]

@EMTBReview this will help me explain to my wife why the $6k Canyon Spectral On CF8 I ordered is worth it lol.

[@lufknuht5960]

What I want to know about the torque NM is whether the advertised eBike torque is just the motor or adds in supposed human pedalling? Obviously if the motor is geared down, the torque is increased at the expense of speed, RPM. And the Watts does not tell you how much mechanical energy is put out by the motor, but how much power it uses up, which includes heat generation -- with various ratios depending upon motor efficiency

[@terryrccrazy6993]

Very informative and well explained, thanks

[@EMTBReview]

I appreciate that very much. Hard to understand and even harder to explain in plain language. :)

[@JohnstonRobare]

Small point: you mixed up your class 2 and 3. Class 1 = pedal assist up to 20mph Class 2 = throttle up to 20mph Class 3 = pedal assist up to 28mph (and sometimes a throttle up to 20mph)

[@EMTBReview]

Arrrrgh.... I studied it too. :) I'll put a 'note bubble' in the video. Thank you.

[@NardsMcGee]

surprising to see how similar the 50 nm and the 85 nm are on the climb.

[@mitchonthego]

Always like your vids🎉

[@EMTBReview]

Glad you like them! A bunch more good ones coming.

[@markhenderson1017]

Great explaination!

[@gearadventures]

Toss one more variable into the mix. Volts and controller amps. If you have a 1500 watt motor and 36volt bike with 20 amp control. Then you are running 720 watts regardless of motor size. So can a bike have more torque if its a 48v 30amp control that has 1440 watts. I know watts can determine speed but does volts and controller amps have any effect on torque at all?

[@oddarneroll]

Great video, but I don't thunk your explication holds up. I think tourq is measured not on the crankshaft but on the motor rotor before the reduction gear. Max rpm is achieved when you pedal as fast as you can, regardless of speed your traveling because speed depends on what gear your in. The only way I can make sens of the numbers is that one of the bikes stops helping beyond a given rpm on your crankshaft. The other keep giving until the larger wattage is produced.

[@EMTBReview]

Ahh, torque is measured at the output of the motor system. So in this case, at the bottom bracket spindle.

[@lufknuht5960]

I want to know how the torque of a mid-drive eBike is calculated: is it just the motor as on the bench or which chain removed? Or is it the resulting torque of the wheel vs the ground through the lowest gear? Does the mid-motor eBike get its higher torque at the expense of speed by calculating it as the result in the lowest gear? Otherwise, I don't understand how a mid-drive motor has more torque than a hub drive motor.

[@EMTBReview]

The torque is measured at the output shaft of the motor always. 1 NM is 1 Newton or .22 lb lifting power, 1 meter away from center.

[@mitchonthego]

Use the metric system = simple math = everyone but a few

[@EMTBReview]

Meters or Metres?

[@Jjside1]

Galing thank you. Sa tingin mo bababa pa ang presyo ng mga e-bike in the future? Taga Bay Area ako. Looking to buy an e-bike

[@EMTBReview]

I think they will start to go up now after the supply chain issues have cleared up. Email me at [e-mail]

[@gfowkes]

160 fork on your EXe?

[@EMTBReview]

That's stock. So 150mm I believe.

[@mitchonthego]

Metric 😊

[@EMTBReview]

Which one is metric? Newton Meters huh?