And with PAS the harder you push the pedal the less battery you use and the more exercise you get...

 

My GSM - with PAS - kicks in as soon as the pedal moves and gives maximum Watts from a dead stop. The GSM is very quick away (careful what assistance level you are in, keep the front wheel on the ground) then drops down constantly until trailing off to 0 Watts drawn as you approach the 25 km/h cut off. The faster you go (in the same gear) the less Watts it draws.

 

The Mxus PAS needed 2 or 3 magnets to go by the detector so up to 1/4 of a revolution with the 12 magnet disk before kicking in. The Watts given depending on the assistance level until cut off speed.

 

This is with both motors using the same "torque simulation" sine wave controller. I think it is an illustration of the different types of power delivery, one through the drive train and the other assisting in the rear wheel.

Y

D8ve,

'Torque control is push the pedal and it measures how hard and multiplies that by a factor usually half, same, and double power. It's the natural cycling feel but with younger legs.'.

- is this what the Volt Pulse and Wisper 905 Torque bikes provide?

 

Thanks.

 

Yes that's absolutely correct. Start off without having to move the pedals more than 1mm and the more you push the more power you are rewarded with.

 

With the Wisper you can also twist the throttle for immediate max power without applying a lot of pressure to the pedals.

 

All the best, David

Okay thanks Dave for speedy reply!

Y

 

 

Yes that's absolutely correct. Start off without having to move the pedals more than 1mm and the more you push the more power you are rewarded with.

 

With the Wisper you can also twist the throttle for immediate max power without applying a lot of pressure to the pedals.

 

All the best, David

 

I said that without moving my lips....or fingers:D

Dave,

 

Is http://electricbikesscotland.co.uk the closest place to Inverness, where I can go for a Wisper 905 Torque demo?

 

I may be in Edinburgh in near future - is there a dealer there?

 

Cheers,

Edited July 31, 20169 yr by SteveMcG

I find this assertion fascinating. I don't consider myself remotely fit. I have some nerve issues caused by MS that limit my walking range to about 20-25 minutes. One of the reasons I wanted a bike was that I was conscious of the fact that the longer I'm not doing significant walking I'm losing muscle and wanted something that would mean some exercise to counteract that alongside some assistance if I need it. It's probably safe to say my legs are not especially strong.

 

I've only had my Wisper Torque for a couple of days so I haven't ventured far yet but I have taken it up a couple of significant hills. I've managed just fine with the combination of assist and being able to use throttle just by keeping the pedals turning for the couple of bits that were just too steep for me to manage, even with top level assistance.

 

So maybe it's yet more grist to the "try before you buy" mill? I just felt so much more comfortable with the torque sensor than the cadence but other folk are the opposite, whether that's to do with fitness or expectation or whatever.

 

Hi,first of all well done to you for maintaining muscle fitness by cycling ,despite your MS.

I think that by using the throttle you are effectively providing max power overriding the torque sensor,this is normal on most e-bikes that have a throttle fitted,you can use that technique to give max power when you need it.

However,I have customers who come up to me at cycle shows and they tell me that they have been advised to get a torque sensor bike,they are currently unfit and struggle to ride the bike up hills,they think they need a torque sensor e-bike to regain their fitness.

It's all about the degree of their unfitness,a torque sensor requires you to input power to get power out,it is a strain gauge built into the pedals. But if you have tired legs you still have to press the pedals,some e-bikes have a low ratio so you have to press the pedal hard to get max power.

With a speed sensor you are in control you select the power you need for any terrain,if your legs are tired you can select max power irrespective of the power you are inputting in the pedals.

I find a torque sensor gives a very intuitive ride,it replicates the effort you are imputing,but I am a fit guy with strong legs.

As I say it's all about the level of unfitness,which is why you need to ride a torque and speed sensor bike over the same hill to determine which one is suitable for you.

KudosDave

Dave,

 

Is http://electricbikesscotland.co.uk the closest place to Inverness, where I can go for a Wisper 905 Torque demo?

 

I may be in Edinburgh in near future - is there a dealer there?

 

Cheers,

 

Hi Steve, Ebikes Scotland is the closest for you at the moment. John's a great guy and has a lot of brands for testing, not just Wisper.

 

Re Dave's reply he is absolutely correct re Torque sensors. With the Wisper you can choose between both Torque sensor or Speed sensor, so you have the best of both worlds.

 

All the best, David

Edited August 1, 20169 yr by Wisper Bikes

Many thanks.

Hi

 

We have a KTM Macina Sport 10 CX5 in stock in a 46cm frame. Still in box should be £2199 but could do a deal. It comes with 500wh battery and most powerful Bosch motor. We also stock other bikes including Wisper and many other brands which could deliver what you need. We personally deliver within around 2.5hours. With more than 20 e-bikes in stock to try you would be welcome to pay a visit.

 

Good luck with the search

David

Shortlisted http://www.50cycles.com/electric-bikes/kalkhoff-bikes/pro_connect_9g.html

 

How does the Kalkhoff repairs work in practice? I like the more expensive models but this on at £1700 is slightly more dosh than I can afford.

I like this one better: http://www.50cycles.com/electric-bikes/beat-bikes/toba_crossbar.html

Ah Perseus both those bikes have the infamous impulse motor.

Find out about that then decide if you have any interest.

Ah Perseus both those bikes have the infamous impulse motor.

Find out about that then decide if you have any interest.

I won't rush in then. Only local shops are Raleigh, 50 Cycles, Giant, Halfords and a private shop. I need a service agency at the prices quoted. I need to try the bike out as well. Virtually everyone I have asked who has bought ebikes has complaints about them especially Freego and Cyclamatic. One shop would not even repair the bikes they sold. One person complained 50 Cycles Kalkhoff would not repair the bike cause it fell to bits (not a detailed talk though).

Edited November 4, 20169 yr by Perseus

PS: I could try Evans Cycles in nearby Brighton? Too expensive and not very promising range of bikes. https://www.evanscycles.com/bikes/electric-bikes_c

 

That or not get an ebike at all?

2017 Kalkhoff also uses Impulse motors.

 

Ony other shop near enough:

 

https://www.electricbikessussex.co.uk/collections/electric-bikes

Edited November 4, 20169 yr by Perseus

2017 Kalkhoff also uses Impulse motors.

 

Ony other shop near enough:

 

https://www.electricbikessussex.co.uk/collections/electric-bikes

 

How about a nice bike conversion from Brightonebikes who is a regular forum poster and rider, choose any standard nice bike you like or have and he will do a nice mid drive Bafang BBS conversion.

How about a nice bike conversion from Brightonebikes who is a regular forum poster and rider, choose any standard nice bike you like or have and he will do a nice mid drive Bafang BBS conversion.

 

http://www.brightonebikes.co.uk/

 

My bikes are not really suitable for conversion though.

Edited November 5, 20169 yr by Perseus

you dont want an impulse motor as they all fail and endless replacements taking weeks or longer to fix is no option there not fit for purpose.

 

is there no bosch or Yamaha bikes that you like?

Hi there is EBikes Direct in Bodium and On Your Bike in East Grinstead both worth a trip.

 

Try one of our Wisper Torque series they may well suit your requirements.

 

All the best, David

Hi there is EBikes Direct in Bodium and On Your Bike in East Grinstead both worth a trip.

 

Try one of our Wisper Torque series they may well suit your requirements.

 

All the best, David

Too far away. I need to try out a bike before purchase. arthritis make straight handlebars and sporty geometry not the best choice (Tourer geometry is best), and I found the Cyclamatic too back heavy so ideally I'd want the battery nearer the middle of the bike. I need a local shop for problems and repairs. Shoreham-by-Sea has four to choose from: S-Cycles (Kalkhoff), Halford, Raleigh (?), Giant. Private shop in town won't even repair ebikes they sold customers! PS: I'm not going to spend all day travelling to try out a bike. Then there is a problem if the ebike goes wrong and as far as I've been able to ascertain, they all have problems.

Unsure how to cope with the very steep inclines without a throttle. In practice the very heavy weight at the rear was disadvantageous and it actually because a bit tricky when he power was not sufficient. On a light pedal bike, I could weave on tarmac, but this was not possible on an ebike. Need a walking mode ideally, found out in practice with rear heavy bikes.

Too far away. I need to try out a bike before purchase. arthritis make straight handlebars and sporty geometry not the best choice (Tourer geometry is best), and I found the Cyclamatic too back heavy so ideally I'd want the battery nearer the middle of the bike. I need a local shop for problems and repairs. Shoreham-by-Sea has four to choose from: S-Cycles (Kalkhoff), Halford, Raleigh (?), Giant. Private shop in town won't even repair ebikes they sold customers! PS: I'm not going to spend all day travelling to try out a bike. Then there is a problem if the ebike goes wrong and as far as I've been able to ascertain, they all have problems.

All bikes have punctures and chain replacements required.

Impulse have a very high failure rate for a premium product.

Woosh, whisper are cheaper and have had few issues in relation to the volume sold.

So local is handy but not everything.

All bikes have punctures and chain replacements required.

Impulse have a very high failure rate for a premium product.

Woosh, whisper are cheaper and have had few issues in relation to the volume sold.

So local is handy but not everything.

 

Local is only good if they do after sales service. I found one example where the shop would not deal with repairs and left the customer in the lurch.

 

The second thing about local is trying the bikes out which in view of the cost is pretty much essential as well.

 

Clever people could work this out from the geometry but in view of the extra weight it is best to try them out.

 

I ask people with ebikes and almost everybody has problems, not just mechanical like stretching chains (always with derailleur) but electrical as well. S Cycles does not have a local workshop. It is just a shop.

 

I need after sales service so the same reason why I need an ebike: arthritis.

 

Woosh seems a good buy but too far away.

Edited November 5, 20169 yr by Perseus

After reading the thread I think you are unsuitable for an ebike and are better off sticking to a car.

Local is only good if they do after sales service. I found one example where the shop would not deal with repairs and left the customer in the lurch.

 

The second thing about local is trying the bikes out which in view of the cost is pretty much essential as well.

 

Clever people could work this out from the geometry but in view of the extra weight it is best to try them out.

 

I ask people with ebikes and almost everybody has problems, not just mechanical like stretching chains (always with derailleur) but electrical as well. S Cycles does not have a local workshop. It is just a shop.

 

I need after sales service so the same reason why I need an ebike: arthritis.

 

Woosh seems a good buy but too far away.

When you have had nothing but negative feedback I can't quite understand why you still want an ebike.

Having said that I can only offer advice based on my own personal experiences powered and unpowered.

I have had no electrical problems in 2000km of riding my ebike.

The chain is just about shot after this distance.

As a rule on unpowered bikes both road and mountain I replace the chain every 1000 miles / 1600km. After 5 chains I replace the cassette. I have never replaced a front chainring due to wear.

I have left the chain longer on the ebike as I intend replacing the whole drive train in one go to further increase my gear range.

My normal use is far more extreme from a climbing point of view than you are likely to encounter in the UK.

My ebike is a Yamaha crank drive with 2 chainrings. My MTB has about 30 thousand miles on the clock in the eight years I have owned it, my current road bike has about 10 thousand miles on it.

Have you tried asking regular cyclists if they have problems?

I guess the point of this post is if you ask an enthusiastic who understands what is going on if they have problems they will tell you no, if you ask someone with unrealistic expectations they will tell you they have problems.