Careful, the Union Flag debate will start up again!

 

Maybe if we keep quiet about it KudosDave won't notice.

 

Looks great though.

.

 

Thanks Tony, we are excited about launching at Eurobike next month.

 

That’s why I put “Designed in the UK”! Trying to be careful and not stir the Hornets next again.

 

All the best, David

Thanks Tony, we are excited about launching at Eurobike next month.

 

That’s why I put “Designed in the UK”! Trying to be careful and not stir the Hornets next again.

 

All the best, David

 

That was the most fun we've had on here for years.

 

Almost as good as your Wisper Albino.

Well at last here they are, the Wisper Wolverine in Carbon and Alloy.

 

Possibly the fewest visible cables on any full size electric bike?

 

Off to Eurobike tonight now, the Brits are coming?

 

They look stunning David.

Nice!

What are the specs and weights ?

I’ll be posting all the details on our web site this afternoon.

 

The full carbon Wolverine as you see it has a 250Wh battery with Fazua mid drive motor, Ultegra Di2 8700 electronic gear set, Ultegra hydraulic disc brakes, full carbon wheels, continental tyres, through axels, FSA chain wheels and carbon cranks... basically all the good stuff. Target price £6,995 although it could sneak higher. 13kg.

 

The frame set will include frame, forks, motor and battery etc, FSA chain wheels / carbon cranks and carbon seat pin. Target price £3,895, so although not with all the top end gear one could build a superb eRoad for well under £5k.

 

All the best, David

Edited July 5, 20187 yr by Wisper Bikes

Fantastic looking bikes, after spending just shy of £3k a couple of months ago on an electric assist mountain bike, I think I would end up in the divorce courts if I bought one of these terrific machines.

It would appear that several manufacturers are looking to bring out very light eRoad bikes next year. I am not absolutely sure why though. If we take non assist road bikes then I can understand why people would want to make very light road bikes as it will give the riders an advantage over people with heavier ones and also be easier to ride faster up hills. When it comes to ebikes though does a lighter bike make that much difference as one has a motor to assist one up the hills?

 

So if we look at say the £7k bike you mentioned above and compared it with say a bike you said could be built for under £5k using your frame set, how much faster would the dearer bike be able to go over a set course (say 20 miles of rolling roads) with the same person riding it.

 

BTW I am not trying to be awkward here, I think your bikes look terrific I'm just wondering if weight advantages make that much of a difference when it comes to electrical assist bikes?

It would appear that several manufacturers are looking to bring out very light eRoad bikes next year. I am not absolutely sure why though. If we take non assist road bikes then I can understand why people would want to make very light road bikes as it will give the riders an advantage over people with heavier ones and also be easier to ride faster up hills. When it comes to ebikes though does a lighter bike make that much difference as one has a motor to assist one up the hills?

 

So if we look at say the £7k bike you mentioned above and compared it with say a bike you said could be built for under £5k using your frame set, how much faster would the dearer bike be able to go over a set course (say 20 miles of rolling roads) with the same person riding it.

 

BTW I am not trying to be awkward here, I think your bikes look terrific I'm just wondering if weight advantages make that much of a difference when it comes to electrical assist bikes?

there is 1 massive problem with these bikes and it is the 15mph speed limit like how can you call a bike a racing bike that is restricted lol.

 

avg speed of a top end road bike with someone drugged up can avg 24mph so either way ur fooked

there is 1 massive problem with these bikes and it is the 15mph speed limit like how can you call a bike a racing bike that is restricted lol.

 

The 15.5 mph restriction is quite a problem, but provided the road is fairly flat and I am not riding into a strong wind then I am often riding around 17 or 18 mph on an eMountain bike. With less rolling resistance and better aero position of a racing bike, then I would imagine you could increase this by at least a couple of miles per hour.

 

20 years ago I could average just over 25 miles per hour for a 10 mile time trial (no drugs involved btw) and I was no where near the best rider in the two clubs I was a member of. With advances in technology and training I would think many club cyclists probably average around 27 or 28 mph over a 10 mile TT on a flat drag strip type course.

I am not absolutely sure why though.

competition I guess. Even me, I feel strangely attracted to this thread albeit that CF bikes are not stuff that I know anything about.

Can anyone who has a better knowledge of physics (that shouldn't be difficult to find) help me out here with the following.

 

Lets say I free wheeled down a fairly steep hill and recorded the max speed I achieved during the descent. Lets say I then placed several lead weights into pockets in my clothing, which now meant I was now say 10kg heavier but with no added wind resistance. Would I now achieve a higher max speed during the descent assuming I had pushed off on the bike with equal force as the first descent.

 

I think intuitively on the second ride I will reach a higher max speed, if this is correct then does that mean with electrical assist bikes the lighter they are might mean you could actually end up being slower than a heavier bike when it comes to hills.

 

This is how I think this might be the case. Assume we have a big up and then down hill section and two racing bikes, one say 4 kg lighter than the other. On the way up each bike is ridden on max assist level and we go up at 15.5 mph assume we are not fit enough to ride up the hill un assisted.

 

On the way down the heavier bike will reach a higher max speed than the lighter one is my thinking correct here?

does a brick fall; faster than a feather, then you have the answer

 

what you will run out of tho is gears if you want to add more power

does a brick fall; faster than a feather, then you have the answer

 

Not sure what you mean here, in a vacuum they would both fall at the same rate but obviously in air due to wind resistance the brick will fall quicker. Are you saying that if the wind resistance hasn't increased (as was the case in my example) then the extra weight does mean I will travel faster? Or that I will travel at the same speed in both cases?

it is densety vs bouncy so the extra waight would give you more mass so travel faster down a steep flat hill.

 

its why my brakes catch fire lol

OMG 107 mph, that was crazy. He was extremely lucky to have survived that crash with only those injuries he could easily have been paralysed or killed.

Thanks everyone for taking such an interest!

 

One of the many reasons why we chose the Fazua evation drive system is the special clutch that separates the motor and bottom bracket whenever exceeds the mandatory 15.5mph (25km/h) assistance limit. Uniquely when a rider pedals past this limit they can do so without feeling any resistance from the motor.

 

ATB David

Thanks everyone for taking such an interest!

 

One of the many reasons why we chose the Fazua evation drive system is the special clutch that separates the motor and bottom bracket whenever exceeds the mandatory 15.5mph (25km/h) assistance limit. Uniquely when a rider pedals past this limit they can do so without feeling any resistance from the motor.

 

ATB David

but then you are carrying a motor and batt that is dead waight and slowing you down on a group ride you will be left in the dust.

 

remove the speed limit and see how far and fast it can go ?

Uniquely when a rider pedals past this limit they can do so without feeling any resistance from the motor.

 

I must admit that sounds a very handy feature, I wish it was the same on my mountain bike, I can certainly feel the motor starting to drag when I'm going around 17 mph +, on flat roads. Don't notice it that much going down hill.

I must admit that sounds a very handy feature, I wish it was the same on my mountain bike, I can certainly feel the motor starting to drag when I'm going around 17 mph +, on flat roads. Don't notice it that much going down hill.

thats why i have a dongle them 15mph fkn things get in my way

but then you are carrying a motor and batt that is dead waight and slowing you down on a group ride you will be left in the dust.

 

I don't think these bikes are aimed at riders that want to keep up with the local club chain gang, that's never going to happen unless you want to take the slight but never the less real risk of de restricting your bike.

 

I would love to be able to get out on a racing bike again but I live in a very hilly area and it would kill be to try and ride a racing bike up those hills. An electrical assist racing bike on the other hand would eat up those hills no problem I am sure.

but how big is the batt ?cos eddie last year nuked a bosch 500w batt in ten miles of steep climbing tho it was up a mountain and the wrong one again this year pmsl

but how big is the batt ?cos eddie last year nuked a bosch 500w batt in ten miles of steep climbing tho it was up a mountain and the wrong one again this year pmsl

I think it 250Wh, but that should be fine, these bikes will never be used off road, probably the only time you would need to worry about running out of power is if your ridding up some of those long mountain passes on the continent. Although we have some very steep hills in this country we have nothing that goes on for many miles like they do over there.