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If there is no button for off road use and the controller is altered so the bike goes over 15mph on throttle alone then it is illegal to use on the road. And in the very unlikley event that bike is involved in a accident and the equally unlikley chance that the police check the bike you could...

You can't really expect Wisper to tell you how to make one of there bikes illegal.

1/ 2009 2/ On this forum 3/ 2009 4/ Bought a Alien kit a 36v road legal and fitted it to my 700c ridgeback. Still going strong 2000 miles later although the battery might be getting a little tired or it might be the cold weather. Thanks Andy..

Thanks David it looks good. How does the cable from the backpack conect to the bike, Ive seen the videos on youtube where the riders fall off but can't see the cable disconecting. Can you tell me if the motor will be a 100mm width. Can we buy direct from you as it is a kit or will we...

I think a Wisper battery will be better quality, but if it dose go wrong pop round to the shop you bought it. If a BSM battery goes wrong it is a slow boat to China. You pays your money----

Hells bells I thought my contacts were heavy at 740g and thats on a 700c rim. I bet Racing Ralphs are nearly half that. Andy.

I have used City Contact 700x47 and have never had a pun--ure, in about 2000 miles. The only down side to them is that they are heavy. I run them with 40psi. Andy.

Sounds good any pictures,

Wider tires roll faster than narrower ones: Riders have argued for years that narrower tires – especially on the road – roll faster and are more efficient than wider ones when in fact, the opposite is true. According to Wheel Energy, the key to reducing rolling resistance is minimizing the...

[ Screwfix ] I thought that was a dating agency.

It's just that hub gears can't give you the same amount of ratios, and are heavier.

I wear a helmit. They are very light not much heavier than a wooly hat unlike a motorcycle helmit. Gloves are also a must skined hands are nasty. It's a nobrainer or it might be if you don't wear one!.

The advantage of derailleur gears for me is that I can have close ratios, ok I had to buy two cassettes 12/28 and 11/28 split them and build one which is 11,12,13,14,15,18, 21. I have tripple chainrings,(28/38/48) and can peddle up to 28mph without spinning out with my 11/48 (its a 27"...

Not an easy one, you have to ask yourself why it broke. The axle/spindle in my opinion will need replacing because even if it was welded it would then have to be turned to get it true and there would always be a week point.

Huddersfield west Yorkshire. Thanks Andy...

I may well be wrong but I thought silicon grease was best for plastic.

What's the lowest amp hour battery that's still usefull, I would say 4ah. What's the highest amp hour battery that you are likley to need, 16ah. So 4ah for people who only travel short distances. Two 4ah that snapped together = 8ah for people who require 8amp Three that go together...

Too much info, I'm having my supper.

Bit expensive for us in GB with the postage costs...

I have Altuta under shorts which I wear under my baggy shorts, they have a sewn in pad. But don't think I will buying any more, the pad seems to get lumpy after about twenty washes. It's like riding withe a handfull of acorns down your undies.