Wahoo ELEMNT (Roam and Bolt v2) on Specialized e-bikes (Garmin Edge compared)

[Jeremy McCreary]

Just a matter of style — kph vs. km/h. Both make sense, and both are unambiguous.

If we want to get finicky about physical quantities and units that actually make a difference in an ebike context, we should require a proficiency test in telling the difference between mass (kg) and force (Newtons), between stored electrical energy (Watt-hours) and rate of energy transfer (Watts), and between electrical and mechanical wattage in electric motors. These are all very different physical quantities.

 

[Stefan Mikes]

If we want to get finicky about physical quantities and units that actually make a difference in an ebike context, we should require a proficiency test in telling the difference between mass (kg) and force (Newtons), between stored electrical energy (Watt-hours) and rate of energy transfer (Watts), and between electrical and mechanical wattage in electric motors. These are all very different physical quantities.

I think we (you, Base, I) understand it well.

I cannot agree to the kph though. It is something only North Americans could invent Wahoo seems to get a lot of requests from the European users! All in all, the whole road cycling world is metric


Regarding lbmol and kmol: The American definition is "the amount of matter expressed in pounds". The SI definition is: "kmol is the amount of matter expressed in kilogram". By chance, 1 kilogram-mole is equal to 1000 gram-moles (moles per SI definition)

 

[Jeremy McCreary]

I cannot agree to the kph though. It is something only North Americans could invent Wahoo seems to get a lot of requests from the European users! All in all, the whole road cycling world is metric

Well, we're quite happy with our mph and kph. If they irritate folks who like to think their way is the only way — when the only truly rational way is m/s, which no one uses in daily life — so much the better!

On the other hand, I have no attachment to any unit having to do with pounds.

 

[Stefan Mikes]

A km/h is 3.6 m/s

 

[JustRiding]

Well, we're quite happy with our mph and kph. If they irritate folks who like to think their way is the only way — when the only truly rational way is m/s, which no one uses in daily life — so much the better!

On the other hand, I have no attachment to any unit having to do with pounds.

Actually we use m/s in the Nordics as a measure for wind speed

 

[Twowheelxtc]

But surely the only sensible distance measurement is the nautical mile….1 nautical mile corresponds to one minute of latitude1…..but overall metric measurements are far easier for calculations than our outdated statute miles that are especially difficult for kids to learn.

 

[JustRiding]

But surely the only sensible distance measurement is the nautical mile….1 nautical mile corresponds to one minute of latitude1…..but overall metric measurements are far easier for calculations than our outdated statute miles that are especially difficult for kids to learn.

in any case more standardisation would benefit everybody, be it more length & speed measures or for charger cables. Just this morning, the charger cable of my Lumos cycle helmet (the one on my profile picture) did break and as it is not USB-C , I have to order a spare cable. Looking forward to the EU to extend the initiative they took on prescribing USB-C on computer and phone charger cables to other devices too. Will save a lot of useless cables one has to buy, carry and replace....