Search results

… also, it’s pretty easy to know how much torque the motor is really supplying if we trust the power output values given by the mahle app. at 7mph my rear wheel is going around 87rpm. just a little bit faster than the crank with a 36:34 low gear. peak power was close to 250w, so the simple...

i think a lot of people are in agreement that this is pretty shady on mahle’s part - while there is some truth to the fact that the vast majority of the time, bikes are ridden with greater than 1:1 gearing, when it really matters (climbing a big hill lol) a lot of mid drive bikes will get pretty...

i believe it just supplies more current. they must have discovered after a few years that the system could take it. or maybe the original version was sticking to less power for regulatory reasons? yeah - the reason i ended up with a little higher rider power was higher cadence, since i was...

i was surprised to see a while back that the "new" version of the mahle x20 was being rolled out to older bikes - everything but the UDH support, of course, since that's a physical thing. https://bikerumor.com/mahle-x20-ebike-motor-power-torque-firmware-update-udh-compatibility/ i have a scott...

here’s a thought - since efficiency varies from 75 to 90 over the full cadence range, and the data is we’re gathering is electrical power, perhaps specialized has accounted for this and the boost factor decreases between 60 and 100 rpm to compensate. same rider power at 55rpm and then 95 rpm...

since we can only easily measure electrical power, you can basically disregard efficiency. the only effect of the change in efficiency will be that the test takes a little longer or shorter than it should on paper. not meaningful IMO. also not sure why you wouldn't have max at 100, as with...

by comparison and for giggles.... this is the hill we live on - behind the tallest building on the left; our views are all in the other direction lol. it doesn't look as steep here as it does in reality. the last two blocks are 27.6% and 25.3%. i've never ridden a two wheeled vehicle of any...

i think three minutes of data would be enough per run, so if we assume the last run is 120 human watts and 240 motor watts, total weight is 225lb, you actually only need a 150' hill (about 7/10 of a mile at 4%) which you ought to be going around 14mph on! i would bet dollars to donuts that the...

yes - it averages 3.6 times the other speed value which is kph. before my latest health troubles i could maintain 200w for a very long time (4+ hours) if appropriately fueled! not anymore lol.

i'd find a hill of around 5%, ideally at least 300' of climb, no stops, keep cadence around 80, heart rate at a steady sustainable value for rider watts in the 100-150 range, do it once at 20/100, once at 40/100, 60/100, 80/100, and 100/100. you won't be in danger of hitting 28mph (heh) and the...

it's interesting that the .fit file contains headers for almost every cycling parameter you could imagine, including "ebike_assist_mode" and "ebike_assist_level_percent" ! unfortunately it doesn't look like specialized is using them. i don't think these were added by specialized since there are...

The free gotoes website i posted above is super easy, drop the fit file and get a csv back, ready for excel. i have many thousands of miles of rides on the ride website, but unfortunately (hah) most of it is with the motor off and when it’s on, i don’t think I’d have any way to recreate what...

i haven’t tried exporting a .fit file from the ride app, but the ones made by the website have all the data you need in them! click on the ride, click the three dots at the top left i think? the chart can also display whatever combo of data you want, at a decent scale, unlike the phone app!

in terms of moving the bike forward, yes! but remember that the system measures the torque at the crank, or rather in the motor, and combines that with the reading from the cadence sensor to determine power. we don't really know what specialized's algorithms are responding to, and whether they...

the options referenced are on the web version, not the app : https://ride.specialized.com/en/ you already have an account if you're using the app, i assume. i don't have the creo any more but when i login i see what appears to be every ride i recorded with mission control.

i used this one in the past, other related tools on the same site are useful as well. it makes a csv with lots of interesting columns that you can look at, including rider and motor power. https://gotoes.org/tools/fit-to-csv the graphs on the specialized rider hub are also detailed enough for...

not so sure about that except at a steady state. agreed of course that power is power, and the SL 1.1 can output 250w mech power from 60 to 100rpm. but at 60rpm you have 35nm of torque, and at 100rpm you have 21. big difference. does the controller respond to a change in cadence (which...

great wheels for the creo 1! loved them on mine.

that isn’t quite as easy to verify as it sounds, since at a given cadence, speed, drag, and slope, there is only one possible amount of rider power Pr for a constant E. at the same cadence, on level ground, you could ride in several different gears to achieve different speeds with different Pr...

it’s been a while. everything but motor power is in the data file you get from mission control (or whatever it’s called now lol) that can be parsed with anything that reads XML, which is basically anything. i probably used excel. there are also lots of free converters for FIT files and the other...