June 9, 201114 yr I don't like knocking someones new pride and joy. There is nothing worse than having something new and then people telling you that they don't like it. But, reluctantly, there are certain things which need saying: The bike looks very nice and the motor arrangement is stealthy, which will appeal to a lot of people. However, I have to agree that the battery doesn't look right protruding from the seat tube in a cantilever arrangement. It all looks Heath Robinson and screams, "Garden Shed". I'm please to hear that eddieo is happy with the bike in terms of both performance and looks, but I think that Wisper should reconsider that battery placement. It really isn't very good. My suggestion for the battery position would be parallel with the tube which spans from the handle bar bearing to the pedal bearing, whatever that is called. The same as the Bosch bike. That looks really good and to some extent, enhances the overall appeal of the bike. Could this be done with the Wisper battery? or is it too wide, causing it to interfere with the chain ring / wheel? Supporting the battery in a uniformly distributed fashion would also be better than the cantilever too. I'm afraid it all looks too a bit too garden shed in its present guise for my liking.
June 9, 201114 yr Vectra. Just remind me why you want a spin down test? I think this has been said before, numerous times in fact, that it does not give you any useful information. Is there not a Wisper dealer reasonably near you for you to do your own test ride? Edited June 9, 201114 yr by HarryB
June 9, 201114 yr Daahub electric bike kit- drag with motor turned off Is there any drag when cycling with the motor turned off ??
June 9, 201114 yr ............Yes Is it a little like the nano or a lot like the Bafang, oh god here we go again
June 9, 201114 yr I think the point we are making is that yes it will exibit drag but how much is quite subjective. I would have thought it is nearer to the tongxin than the old Bafang I have ridden - of course the new Bafang may be better than the old. I think in the end it is up to individuals to decide how much drag is acceptable. I am very fussy about it but would probably accept the dapush as a good compromise in an electric bike.
June 9, 201114 yr Ahhhh, so this is a 29er ? Now, looking at battery placement on this bike, Ed has it placed at the only logical point really, the seatpost option looks tight because the frame looks quite small and the seat low, with those bigger wheels, leaving not much option. Sacrificed aesthetics in the pursuit of speed lol :-)
June 9, 201114 yr Vectra. Just remind me why you want a spin down test? I think this has been said before, numerous times in fact, that it does not give you any useful information. Is there not a Wisper dealer reasonably near you for you to do your own test ride? Harry Hi. Why do I want a simple spin test? I picked up a BionX fitted bike a few months ago and spun the drive wheel. It did 2 revolutions; then stopped. I picked up the same model bike without the BionX kit and carried out my simple spin test. It spun freely and clearly with little resistance. Somewhere in between there must be an acceptable compromise. We want to ride our bikes without power and the idea of pedalling an e-bike which feels like the brakes are partially on just doesn't appeal. Now, I studied Electrical Engineering, Mechanical Engineering and Electronic Engineering. I also have a degree in IT. My career was in Telecomms so I can understand the principles of mechanical resistance, etc etc etc however, as many have pointed out, the "drag" test is a personal one BUT I can think of no easier test to carry out than to ask a supplier to spin a wheel for me and then report back. It's about the simplest way of one person communicating the response of a system to another without getting into mathematics etc. The test is simple, albeit subjective. Quite why any supplier would not wish to comment on a simple spin test is puzzling however I'll have to draw my own conclusions. Put it this way. We have all waited and waited and waited for this kit to arrive. Personally, it disappoints in that the battery postion looks wrong however its appearance is comical in my opinion. Worse still is the lack of information from the supplier re' my spin test. It's disappointing however I'll move on....but without a DaaHub fitted. Regards vectra
June 9, 201114 yr Author OK! here by popular demand is one for all you wheel spinners out there! So dont fink I dont care because I do! lol MOV00817 | Flickr - Photo Sharing! There is a little noise I think from disc brake that probably needs setting up properly so this I think interfering with free spin.....But like I said earlier this bike rides fine without power? a revelation compared to any heavy moped like e bike that I have ever ridden....
June 9, 201114 yr The Bionx motor is a direct drive type it will always have appreciable drag unpowered, the comparison to the geared motors is invalid. The Daahub motor has a freewheel like the Bafang etc and any spin down test proves nothing. If the question was re-phrased to be: 'What conclusion do you expect to draw from Wisper doing a spin down test'. What would your answer be?
June 9, 201114 yr Is it a little like the nano or a lot like the Bafang, oh god here we go again Of course what we need is for someone with both to ride both and then report back. Even then its likely to be a personal opinion unless we get say ten of us to do it lol That said I doubt ten of us from here could agree anything! Regards Jerry
June 9, 201114 yr Author why does Oiseaux continue to torture himself I wonder...get a life and get an air ticket? and spend the day trying some bikes..I mean whats a day return to france cost £50?lol
June 9, 201114 yr Harry Hi. Why do I want a simple spin test? I picked up a BionX fitted bike a few months ago and spun the drive wheel. It did 2 revolutions; then stopped. I picked up the same model bike without the BionX kit and carried out my simple spin test. It spun freely and clearly with little resistance. Somewhere in between there must be an acceptable compromise. To me this shows the nonsense of this test. I have ridden the Bionx and it is by no means a bad bike to ride without power. Certainly better in my experience that the Banfang and probably as good as the dahub - both would spin for longer if you would spin them by hand. There is probably a reason for the spin failure as the bionx does not have a freewheel but as I say pretty good in real life. If it wasn't so expensive I would go for one myself. As I say try before you buy and forget the spin test as it is not giving you any useful information.
June 9, 201114 yr I have ridden the Bionx and it is by no means a bad bike to ride without power. Certainly better in my experience that the Banfang Same here, unpowered I'd prefer the BionX I've tried over the SBs I've tried any day
June 9, 201114 yr ................. Oiseaux, probably less noisy then my 705/905 as for drag not a clue I'm afraid.....Also I dont ride an E bike with motor off, whats the point in that? but I will try it later.... why doesn't eddio do what he says he will do ?, is it because the drag on this motor is so bad he is embarrassed to report on it !
June 9, 201114 yr why doesn't eddio do what he says he will do ?, is it because the drag on this motor is so bad he is embarrassed to report on it ! Keep up.... OK! here by popular demand is one for all you wheel spinners out there! So dont fink I dont care because I do! lol MOV00817 | Flickr - Photo Sharing! There is a little noise I think from disc brake that probably needs setting up properly so this I think interfering with free spin.....But like I said earlier this bike rides fine without power? a revelation compared to any heavy moped like e bike that I have ever ridden....
June 9, 201114 yr Author Have we created electric bike Marmite? All the best David No I dont think so lol.... Any bike that can make you feel instantly 10 years younger on the road has got to be something special. if some want to get bogged down in a discussion regards aesthetics well that is their loss...
June 9, 201114 yr Have we created electric bike Marmite? All the best David Speaking purely for myself, no. I like Marmite. If I were to liken it to a food, it would be fried calf brains for me. But you could easily make it into Marmite
June 9, 201114 yr Have we created electric bike Marmite? All the best David I don't think so, logical though an in-frame battery seems, they've mostly been met with disapproval. The large triangular BionX 10 Ah box is more criticised than praised. The Cybien-Sport one meets with just as much criticism, and the Currie Electrodrive box is downright ugly. Only the subtle one with the new Bosch system seems to meet with any wide approval, and that mainly seems to be that it mounts close to the down tube or seat tube, is profiled and at 8 Ah is small in size.
June 9, 201114 yr Thanks everyone for your considered and constructive comments, I am absolutely delighted that DaaHub has caused a bit of a stir. We have been working in it for 2 years, I would have been so disappointed if it had been received with lack lustre! I understand it is not perfect for everyone and take on board the more negative comments here. The main cause for concern seems to be the battery positioning and aesthetics yes is is a bit phallus like, although I had never noticed that before! The battery mount is actually quite brilliant, originally DaaHub was going to be like so many of the other bike kits out there with seat post/rack mounted batteries. These are the easiest and most obvious places to create battery mounts and do not take a great deal of thought. However the aesthetics are pleasing and if that's what people are looking for then it's the perfect solution, however the bike's C of G is significantly raised. There are some that care more about handling and feel than the look of the bike. http://www.daahub.com/Images_files/P1013369.jpg Anthony, being a serious all mountain rider set out to create a battery mount that was angled perfectly for seat post mounting to satisfy the masses, but could also be used to mount the battery lower and more central to the bike's horizontal axis. The angles on the Daahub Dock were carefully calculated so the same mount (dock) would offer both choices. http://www.daahub.com/Images_files/P1013332.jpg http://www.daahub.com/Images_files/DSCF0053.jpg The DaaHub dock is an amazing piece of kit. It houses the controller, clamps to the bike frame in a choice of positions and is absolutely solid. It enables the battery to be removed from and refitted to the bike in literally 10 seconds for charging, safe keeping or to make the bike lighter to load onto a rack etc. Even with this facility the battery and dock remain solid with absolutely no rattles or movement. For security the battery locks onto the dock with the on off key. A set of silicone shims are locked between the dock and bike frame and act as suspension to the battery and enable the owner to rotate the battery out of the frame for easy removal. http://www.daahub.com/Battery_files/Main%20Mount%20on%20Black%20Daahub.jpg To be continued........ Edited June 9, 201114 yr by Wisper Bikes
June 9, 201114 yr The bike can also be riden with the battery off without the need to remove the dock and if the owner wants to get back to his routs then simply unplug the front wheel and slip the original back in. The only difference to the bike handling would be the 1kg dock still attached. If owners are very serious about retaining the "feel" of their chosen base bike they opt for DaaBag, a "Camel Back" style rucksack with water bladder to carry the DaaHub battery in a zipped pouch at the base of the bag. This is for the serious off roader, BMXer and city cyclist alike who want to keep the handling of their chosen bike as close to the original as possible. http://www.daahub.com/Images_files/Wisper%20jump%20Anthony.jpg. All the best David Edited June 9, 201114 yr by Wisper Bikes
June 9, 201114 yr If owners are very serious about retaining the "feel" of their chosen base bike they can chose DaaBag, a "Camel Back" style rucksack with water bladder to carry the DaaHub battery in a zipped pouch at the base of the bag. This is for the serious off roader, BMXer and city cyclist alike who want to keep the handling of their chosen bike as close to the original as possible. All the best David I'm surprised anyone would want to wear the battery on their back, especially off road. It looks like it could snap your spine in an accident. Where it is on the frame is OK. Not everyone will like it but not everyone likes everything.
June 9, 201114 yr I forgot to say but the 370Wh battery does take up a bit of room and necessitates the brick like looks but it does pack a huge punch and I personally felt it worth compromising aesthetics for added performance. This kit is very quick! Best regards David Edited June 9, 201114 yr by Wisper Bikes
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