Torque and Rotation (Cadence) Sensing - Clarification Question

JohnCade

Esteemed Pedelecer
May 16, 2014
1,486
736
my 2p for what it's worth - I have an oxygen hub drive, a friend has an impulse 2 Kalkhoff, I've used both enough to know the difference. on a sunny day the SS system on the oxygen provides a kind of wave of torque that over longer distances make me work harder (unless I'm going to work and sweating is not good), averaging 25 to 30 mph and arriving at a destination after 15 miles or so thoroughly but wonderfully exhausted. If it's a rainy day and I need to get to work on a grim morning dipping below 15 mph on max assistance means not having to do much (which is a relief). on the kalkhoff everything is much slower (25 to 30mph is not possible), dipping below 15 mph isn't ever quite effort free. I suggest the OP try both. you lot are comparing apples and pears - we all have different unique requirements. choosing again, I would go for a SS - but I might choose differently if it were a 27 mph endeavour, but probably wouldn't because id have to justify spending £3k instead of £500 so it would have to be a lot better, when im really happy with the oxygen and not sure if it would feel better at all. Moral of the story is its all qualitative and personal (money aside)
I can see that at the speed you’re talking about you will be putting in a bit of effort and enjoying a good ride. But not everyone wants to ride an illegal bike at those speeds, and at a normal legal cut out speed - or just a bit above to smooth out the brick wall cut out effect on most SS bikes it’s different. I believe an S pedelec with TS needs more effort to achieve the speeds you are talking about too, and riding a wave of torque from the motor is not quite the same as cycling hard unassisted or even with a power multiplication TS system. I’m sure it’s great fun though.
 

Terry1100

Pedelecer
Dec 18, 2014
44
17
63
try a few different types of Ebike, with torque sensor and with pedal sensor
That's still my aim - certainly before I commit my hard earned. Unlike some here who perhaps have lots of time on their hands :rolleyes: right bike, right place, right time is proving challenging.

fix your Kawasaki, it might be easier
You haven't seen it - it's been on its last legs for a couple of years - MOT due next month. If it gets through I'll be able to spend even more time pointlessly theorising and posting inanely here in an attempt to put off opening my wallet :cool:
 

anotherkiwi

Esteemed Pedelecer
Jan 26, 2015
7,845
5,786
The European Union
If you really are looking for stereotypes to fit your prejudices though I’ve used Macs since 1998. Back in the days when the OS was almost as bad as Microsoft. I know how bad Windows was because I had to use it at work at one time. When I used to work - before I became a free man but with one toe in the grave.
Ah-ha! I "dropped" the MacOs for Linux for the very same reason in 1997. I did have a Mac in the house again since OSX beta came out.
 

lordvincent

Pedelecer
Jan 23, 2015
69
27
33
Before i bought my Kalkhoff Impulse (TS) I tried a couple of speed sensor bikes and another crank (Bosch). The reason I preferred the Impulse was that I found it to be cycling as it should be, that is, like regular cycling but a whole lot easier.

I liken it to power steering on a car which adds force to what you are doing but doesn't carry on steering when you move the wheel a little. The SS bikes were fun to ride but it was a different experience to regular cycling or with a TS Impulse or Bosch, although I can understand why some may simply prefer the experience of an SS bike over a TS.

It might be possible to adjust the assist to achieve the desired natural riding effect on the SS in various riding scenarios, but this would probably mean constantly changing the settings depending on the terrain and possibly never getting it right. On the Impulse I just leave it on the full power setting and it always adds proportional power to what I am doing, which for me is ideal.
 
  • Like
Reactions: oldtom and JohnCade