Thanks. Well I did check that and it seemed to look ok to me. But perhaps it's a fraction off if you're saying there's a fine line ... Is this something you're able to sort yourself? And just how precise does it have to be??!
Very precise. If you ride along, change gear a couple of times and then finish in fourth gear then come to a stop. Go to third then fifth gear a couple of times without moving then back to fourth. Have a look at the green lines, then adjust the nut on the end of the gear change level whilst looking at the two green alignment lines. Line them up perfectly.Thanks. Well I did check that and it seemed to look ok to me. But perhaps it's a fraction off if you're saying there's a fine line ... Is this something you're able to sort yourself? And just how precise does it have to be??!
Agree, whilst the Tasman Impulse 2 motor is not clacking (yet!!!), it makes also makes whining noise and is nowhere near as quiet as the three Panasonic motors in our 'collection'. This has not turned out to be an UPGRADE in our view!!My Tasman Impulse 2 ( now 700 miles ) makes the same whining noise as the problem bikes but not the clicking noises. It is however nowhere near as quiet as the BBS01 motor on my Pashley Parabike conversion.
My initial Impulse 2 motor was very quiet (before the issue developed) and the replacement motor is very quiet too. I couldn't expect an electric motor to be any quieter, so maybe yours has an issue.it makes also makes whining noise and is nowhere near as quiet as the three Panasonic motors in our 'collection'.
The Panasonic motors in my comparison are the crank drives as fitted to the earlier Kalkhoff bikes from 2008 onwards until they diverted into their own Impulse drives. They certainly weren't cheaper bikes, Kalkhoff have always been at the quality end of the market. This quality in the latest generation doesn't reflect my experience with the three earlier models in our collection and the Tasman performance. I lack confidence that in 7 years and 13,000 miles we shall ave enjoyed the faultless performance of the earlier Kalkhoffs.Kalkhoff have surely achieved a great seamless assistance integration (and that's probably the main difference with much cheaper bikes): I don't know if the motor is running or not, most of the time.
Thanks! I'll give this a go.Very precise. If you ride along, change gear a couple of times and then finish in fourth gear then come to a stop. Go to third then fifth gear a couple of times without moving then back to fourth. Have a look at the green lines, then adjust the nut on the end of the gear change level whilst looking at the two green alignment lines. Line them up perfectly.
The info is in this video..
I'm not saying this is definitely your issue but it does sounds like it's more than likely.. Best of luck
As an update took bike to 50Cycles yesterday and they replaced the motor. Obviously I had a lot of evidence with sound and visual recordings from one month to six months old. Credit to them that they replaced without question although it cost me to travel over from north Wales. New motor already sounds quieter on general use after quick test although will need more use for proper appraisal. So back to the road on what is otherwise a lovely bike. As I've said before the best 2k I've ever spent in terms of enjoyment.The noise started about a month from new and was actually much worse than the YouTube recordings. It was a consistent clacking in top power uphill. I still have this recording and sent it to 50 cycles. I have contacted them again last week and they are waiting until they have a motor in stock then I'm taking it in. They will then check it out and hopefully replace.
My friend's second motor is on the way out. It's following exactly the same route to failure as the first one.
There is some more information in this thread http://www.pedelecs.co.uk/forum/threads/kalkhoff-pro-connect-impulse-10-2015-review.19618/page-3
One person is waiting for his third motor replacement. It seems to be affecting the high mileage commuter type users rather than the leisure cyclists. If Kalkhoff haven't addressed this with a modified motor, they need to do so pretty quickly. The serial swapping of motors until the warranty runs out is not a solution.
This is an important point. The serial swapping of motors with an inherent design flaw until the warranty runs out is not an acceptable solution. These customers need to be looking towards the european consumer guarantee. This gives provision for customers to claim against manufacturers or retailers after the stated warranty runs out. The spirit of the legislation is that if a product is marketed / sold at the premium end of the market, with a price tag to match, which Kalkhoffs are, then you should expect the product to last for a period of time which reflects the price / product marketing. This can be well outside the manufacturer's warranty period. For example, Apple computers have a standard 12 month guarantee. If you quote the above law, they will repair for a period of up to 6 years. I know because I have done it and they have told me this is the case (rather makes Apple Care obsolete, although I've never paid for any extended warranty).Pity Tim from 50 Cycles doesn’t come here and give us some genuine information rather than keeping schtum. There are still some 2016 Impulse 11 models being sold so are they still the same spec for instance? If they are and it is a fault which can’t be fixed in that generation of motor then I assume they will just replace them until the two year warranty runs out - and then the buyer is on his own. Which is not good at all. But perhaps they have fixed it for 2016?
Torque is a totally meaningless figure and people shouldn't read too much into it. It is possible to make the second hand on your wrist watch deliver more torque than any bike, but you wouldn't want a wrist watch motor powering your bike! Because ultimately these bikes are just bicycles with bicycle components, it is those components which will dictate how much power the motor can deliver, not motor technology itself.Tillson - agreed although I see it as a good thing that there is this 'torque' war as it should encourage progress in the long run. Thank you for your suggestion about the older model but I'm not sure the battery would last for my intended use (25 mile commute on full assist).
Your cycling pattern sounds pretty much like mine. I use a non assisted road bike as much as possible, exclusively through the summer and have a reasonable standard of fitness. My old Kalkhoff has an easy 50 mile range with its 18Ah battery, more if I'd not been too mean to buy the 25Ah version. The performance difference between it and my friend's 2015 kalkhoff Pro-Connect is negligible, the price difference is massive, however.I also would like the most assistance and least effort on my part so the more power the better. Unlike some here I'm happy with my fitness and would be looking at an ebike to run alongside my road bike. Commuting 125 miles a week inevitably ends up with me losing interest and taking the train or car but hope an ebike would stop this.
By and large, manufacturers tend to give the maximum torque at the motor wheel - for crank drive, at their smallest gain ratio, as a basis for comparison.Torque is a totally meaningless figure and people shouldn't read too much into it...
From what I know about the Impulse motor, it's the high torque from the motor and reduction gearing combination that is damaging pawls in the chainwheel freewheel. It seems as though the freewheel isn't strong enough to cope with the torque and initially it becomes noisy and then fails with continued use.High torque when given in this manner is usually obtained by having more gears and more current going through the controller. It's the latter that kills the motor.