yes, it is V4, but it's like 273 v3 and 205 v3. There is no some technical advantage due v4 marking. It's the same motor from technical advancement perspective. It's better than V2 but it is the same as V3.
I feel that I answered it as good as I understand it about constant power. Battery burst power is battery amps multiplied by voltage at given moment, it is easy to se on some power meter when riding. If you really want to find out what power your wheel produces than you need to put your ebike on...
''difference in torq / speed between normal 273 and the one with 50mm'' I think negligible difference with your controller and assuming that your ebike is considerably light. Maybe you would notice bigger difference in some heavier motorcycle. Maybe what you would notice is additional several kg...
... will heat faster and won't be so efficient (in practice) as before mentioned 260 or 273...
what I want to say that smaller motor won't be as efficient after it heats up compared to bigger motors considering that bigger stronger motor won't heat up. In other words heat is not good. So if you...
no no, you mixing something. This is different motor. it is 260 which is 286mm diameter where spokes are laced. This is similar to 273 but slightly less in diameter. It weighs 16.2kg,
you can do 50mhp with 205 v2, must be 5T 9kv. You want 30mph increase. This is very big speed increase. If dropouts 150/155mm than two choices 273 40mm 4kw nominal 3.5T or 260 v4, You shuold look into 3T or 3.5T versions about 13kv (not 9kv or not 10kv or not 11kv) in another words speed...
Hi,
QS 273 V3 40H 40mm magnets is not most powerful hub motor on the market. There is more powerful and potent. For example 273 with 45mm 50mm magnets, latest versions with lots of copper and less poles.
If you would find 12kw hub motor you would not use it's potential with Sabvoton 72200...
Hi,
to those who read this.
maybe you saw some discussion about new qs 260 40h version? can't find it here. Do you have something to say about it? Good, better, not worth to upgrade, compared to 205 50h? It's 3kg+ heavier than 205 50h but it has 16mm2 phase and bigger diameter. Personal opinions...