4 ms·
https://bikerumor.com/worlds-lightest-mahle-x20-e-bike-drive-system/ https://bikerumor.com/worlds-lightest-mahle-x20-e-bike-drive... says it's 250 W.
by jwilk 4y ago
https://bikerumor.com/worlds-lightest-mahle-x20-e-bike-drive-system/ https://bikerumor.com/worlds-lightest-mahle-x20-e-bike-drive... says it's 250 W.
- metadat 4y agoThanks for digging in and for the correction jwilk :) 250w isn't a lot but it's sufficient for many applications. Please downvote my improper conversions if you can. Sorry for the confusion.
- timonoko 4y agoTorque is more important than wattage, because there is no gears. Now if we want to calculate the actual wattage of a direct drive, with 622mm rim and 25 km/h and 23Nm, it is simply 3.14 x 0.622 x 25 x 1000 / 3600 x 23 311.95027777777784 Watts exactly -- 25km/h is the EU-maximum for electric bicycles, otherwise it is a moped or motorcycle.