Hi,just got a wisper tailwind trail to go off road with and would like to see if its possible to de restrict it? Its for private land use only of course

if the controller is locked you will need the password to unlock it or another controller you can programme

https://www.glasgowlive.co.uk/news/glasgow-news/glasgow-cyclist-caught-speeding-30kph-29051227

i can get close to 40mph on my bike but the controller is still 20a.

i can get close to 40mph on my bike but the controller is still 20a.

How did you do this?

dongle to remove the speed limit and 350w from my legs

if the controller is locked you will need the password to unlock it or another controller you can programme

Do you know where or who i can get the password from?

dongle to remove the speed limit and 350w from my legs

Dongle? Sorry im new to all this

https://wisperbikes.com/?gad_source=1&gclid=CjwKCAjw26KxBhBDEiwAu6KXt7oqOvoEqnyk0aMnj7NrgdhrEHalbeUYDd_TBiUeZbtomDyhgPQx6RoCXd0QAvD_BwE

 

he is a member on here but it will void the warranty

a dongle fools the speed sensor and removes the limit mine is a usb one plugged in to the motor.

a dongle fools the speed sensor and removes the limit mine is a usb one plugged in to the motor.

Where can i find one? Thanks for helping me out

I don't think it is possible for that model of Wisper but why not private message [mention=181]Wisper Bikes[/mention]

Ok,will email wisper,see if they can help me out atall,thanks

https://www.glasgowlive.co.uk/news/glasgow-news/glasgow-cyclist-caught-speeding-30kph-29051227

 

 

NO sympathy

my bike is bosch but wisper systems used hub motors and controllers but might be able to sell you one that can give a bit more speed/ more amps.

 

the batt must be capable of the sustained amps the controller uses or kaboom

Where can i find one? Thanks for helping me out

 

 

Even off road if YOU don't own the land or have permission it is illegal and god help you if you hit someone I would sue

 

What "Private land" most land is "Private" my back garden is, forests are even if owned by the Forestry commission and so on

Wisper will not tell you (even it is was possibe) , warranty repairs would cost them to much and would mean the EN15194 rating becoming illegal.

You will find thy are a responsible dealer and will kindly send you away with a flea in your ear.

I just love when people register on this forum only to ask in first post how to break the law.

 

Tailwind is a nice bike BTW, but poor choice to derestrict.

Thanks for all ur advice,by off road i meant i wouldnt be riding it on the road , and yes private land is the land owned by a local guy who said its fine, kinda new to this but thanks for all your help

Is the land owner insured if you are injured and sue?

Thanks for all ur advice,by off road i meant i wouldnt be riding it on the road , and yes private land is the land owned by a local guy who said its fine, kinda new to this but thanks for all your help

If you wanted to derestrift, you should have asked before you bought the bike. Some are easier than others.

 

If you're any good ar electronics, you can hack the speed signal with a frequency divider, and if you're good with electrical stuff, you can replace the controller and LCD, otherwise you'd have to try inviting the Wisper guys to a party with lots of free alcohol and unde-rage girls, then blackmail them for the unlock sequence the next day; however, I don't think it would work because they're wise to people trying those sort of things.

https://www.glasgowlive.co.uk/news/glasgow-news/glasgow-cyclist-caught-speeding-30kph-29051227

Blimey, 18mph. Absolute death machine.

Blimey, 18mph. Absolute death machine.

Especially as up to 17.08 mph is allowed in the standard. I reckon that I could get the guy off in court if he used me as an expert witness. What the wheel spins up to with the wheel off the ground is not the same as the speed when riding because of the response time. Also, the display speed is not calibrated and unverified.

 

It reminds me of the time the police seized a pedicab trike and grounded the whole fleet. They used a current measuring clamp over the battery wires to determine that 48v times the 25 amps that they measured was around 1000w and 4 times what they thought was allowed. I wrote a nice letter for the guy's solicitor explaining the errors, which was presented to the police, who then apologised to the guy and gave him his trike back.

Edited April 25, 20241 yr by saneagle

Blimey, 18mph. Absolute death machine.

 

Unluckiest ebiker ever. Swarms of youths with black masks on 1500w ebikes probably giving the Vs to the police as they zoomed past this incident.

Hi all, FYI, we would need to reprogram the controller on the Tailwind to derestrict it. Even opening the throttle takes a change to the software. Incidentally even if you own the land, if public have any access, that includes a footpath on the perimeter of a field, it’s not legal to use a derestricted ebike.

 

All the best, David