Bit like shaped bowls that prevent damage to the cats whiskers whilst eating..... It keeps the tills ringing lolelegant solution to a problem that doesn't exist
But complicated does not necessarily mean more advanced.something more advanced than a derailleur.
:s
Hi Mike. I use my tonaro on offroad country trails as well as more conventional paved surfaces. I replaced the stock battery with a higher voltage one which upped the power a bit. This made a whole deal of difference to the low speed cross country ride. Unfortunately the higher powered drive makes gear changing very clunky. It has also destroyed a rear freewheel, a deraileur, and a clutch. I have heard that the nuvinci provides an improved experience-smoother gear changing and a genuinely novel alternative to managing the bikes drive. I would love to try it and "Blew Its" dual drive too. They are a difference, we await to see if they are an improvement. (I mean to say for higher powered crank driven ebikes of course)In practice, on my Tonaro around Swansea which is fairly hilly, I only use gears 2, 4,6 and 8. Occaisionally I use number 3. I only have used 1 on a very steep hill at Mumbles pier.
So what advantage would this nuvinci hub give me?
Hi David,Hi Rami, as Eddie says we will be selling a new bike the Grace MX in the new year, the system is expensive but after a few miles riding the gear change seems almost automatic, seamless.
Grace Bikes by Wisper In the UK 2013
The use of the drive is particularly useful on more powerful crank drive electric bikes as Shimano will not warrant the use of their gears on an electric bike with more torque them 40Nm, of course this is not an issue on hub drive bikes.
All the best
David
Although I'm not a fan of the NuVinci on efficiency and weight grounds, it does solve all of the usual hub and derailleur gear problems, simply because it doesn't have any of them. It won't ever slip because the more effort that's put through it, the more it securely grips. It can't jump ratios, there are no gear teeth or pawls to shred, no spindle pins to shear, in short it's as tough as it will ever need to be.I've never tried a CVT geared bike myself but can't imagine it solves any of the problems you already get with standard gearing setups. At least with normal derailleurs you get the option of swapping chainrings/freewheels when the mood takes you. imagine these are impossible to modify
The NuVinci is an improvement for an e-bike under this circumstance and they've been around enough years to know they are unfailingly reliable. I very much like the SRAM DualDrive, but it's derailleur is conventional so will suffer your increased power in the same way as at present, with the possibility of the increased power damaging the three speed hub element of it as well.Unfortunately the higher powered drive makes gear changing very clunky. It has also destroyed a rear freewheel, a deraileur, and a clutch. I have heard that the nuvinci provides an improved experience-smoother gear changing and a genuinely novel alternative to managing the bikes drive. I would love to try it and "Blew Its" dual drive too. They are a difference, we await to see if they are an improvement. (I mean to say for higher powered crank driven ebikes of course)
Thanks Hech, we are very excited and cant wait to get them into stock! The interest has been quite incredible.well done Wisper, that MX looks a real beauty, the bike to get next year and a radical but sensible innovation.
Hi RamiHi David,
Yes, I've been looking through your new Grace bikes, and I have to say, they look superb! I'd love to try one, especially the Grace MX
By the way, since Wisper has traditionally opted for bigger batteries, what was the thought behind settling for a 36V/8Ah and a 48V/6.3Ah on your new Grace models?
Actually, I personally think 36V/8Ah is perfectly sufficient. But I've always thought Wisper had a different view given your standard models.
Do you think the trend for more and more capacity has now reached its peak? I'd love to hear your view.
Well done with the new range!
Rami