• Warning!!

    Riding a tuned or deristricted EMTB is not a trivial offence and can have serious legal consequences. Also, many manufacturers can detect the use of a tuning device or deristricting method and may decline a repair under warranty if it was modified from the intended original specification. Deristricting EMTB's can also add increased loads for motors and batteries. Riding above the local law limit may reclassify the bike as a low-powered bike, requiring insurance, registration and a number plate.

    Be aware of your local country laws. Many laws prohibit use of modified EMTB's. It is your responsibility to check local laws. Ignoring it, has potential implications to trail access, and risk of prosecution in the event of an accident.

    UK Pedelec Law

    Worldwide Laws

    We advise members great caution. EMTB Forums accepts no liability for any content or advice given here. 

Ep801 solution

F

Fielonator

New Member
Joined
Aug 11, 2023
Messages
50
Reaction score
41
Location
South East England
Howdy. It's not a stunlocker thing, but I've cracked my ep801. I used e-max tuning. They haven't yet released software for the ep801 but offer a personal service done remotely. Best 119 euros I've spent in a while. I needed to get my hands on a Shimano dongle to connect to my p.c. but they did the rest. Few emails, sent some screenshots of my bike connected to their software, made and appointment and Markus did the rest. I now have a bike derestricted up to 50km/hr, accurate speed and distance readings on the display, and the license to use on my bike as often as I need to once they release the new software. I'm really impressed and highly recommend doing it.
 
⚡ EMTB Pro Go Pro — exclusive discounts & ad-free Peaty's 25% off & more · Ad-free browsing · Pro badge See the deals →
I posted this on the stunlocker thread as it seemed people were struggling with the ep801 system. There's no need to struggle, just use e-max tuning. I've got nothing against stunlocker, never even seen it, but if it doesn't work for the motor system you have there's a very good alternative. Just saying. Not sure why this is in italics, but it is.

Peace brothers and sisters.
 
Fielonator said:
Howdy. It's not a stunlocker thing, but I've cracked my ep801. I used e-max tuning. They haven't yet released software for the ep801 but offer a personal service done remotely. Best 119 euros I've spent in a while. I needed to get my hands on a Shimano dongle to connect to my p.c. but they did the rest. Few emails, sent some screenshots of my bike connected to their software, made and appointment and Markus did the rest. I now have a bike derestricted up to 50km/hr, accurate speed and distance readings on the display, and the license to use on my bike as often as I need to once they release the new software. I'm really impressed and highly recommend doing it.
Click to expand...
speed are not half speed on display ?
 
Everything is displayed correctly, the limit is changed to 50km/hr in the software.

For the ep8 and older systems it's possible to change region and wheel size to get a higher speed limit, and this makes the indicated speed incorrect.

I've had a few rides now and it's been faultless.
 
Cleggy said:
I'm assuming that your EP801 is still under warranty but you went ahead with the derestriction anyway, correct?
Click to expand...
Yeah that's right. It's all reversible with no evidence of it being done, apart from the speed stats. I guess if I ride consistently way over the normal cut out somebody may smell a rat. Fingers crossed it won't need any warranty work done. So far so good!
 
Fielonator said:
Yeah that's right. It's all reversible with no evidence of it being done, apart from the speed stats. I guess if I ride consistently way over the normal cut out somebody may smell a rat. Fingers crossed it won't need any warranty work done. So far so good!
Click to expand...
I can fully understand why you would do it, I want to too as the cut-out is like hitting a brick wall. I am just very reluctant to do so whilst still under warranty, these toys are not cheap.
 
So much more fun. Get in touch with the guys at e-max. They were really helpful when I was looking at my options, they were happy to answer the questions I had.
 
That sounds great - thanks for your advice. I think I will give it a try too.
 
Fielonator said:
Howdy. It's not a stunlocker thing, but I've cracked my ep801. I used e-max tuning.
Click to expand...

Still running happy?


Screenshot 2023-12-30 at 12.56.07.png
 
Fielonator said:
Yeah that's right. It's all reversible with no evidence of it being done, apart from the speed stats. I guess if I ride consistently way over the normal cut out somebody may smell a rat. Fingers crossed it won't need any warranty work done. So far so good!
Click to expand...
so emax creator says it's no durable deristricting but you , you said it's possible do yoy have any video of what you saiying ??
 
The EMAX solution works perfecly on my EP801 bike since many months already and gives me a max speed of 50kph. :)
 
SEBA said:
got a vid ? or it did not happen 😁

where are the other ?

is it a US drive ?
Click to expand...
I think it is not my duty to convince you and to create a video to satisfy your purposes - I´m happy if my bike works well and if you don´t believe in this, it is up to you. :LOL:
Is there any reason why I should write publicly that the mod is working if it is not - that makes no sense for me, but maybe for you...
Just have a look around in this forum and others and you will see that there are a lot of users which have done this EMAX solution for the 801. Also there are already videos of this tuning in the net.
 
Last edited:
emax programmer is talking me because

first he said that is a complicated thing to derestrict ep801

but now after several mails

it 's a doable task and no risky at all to derestrict ep801

now let me in peace thank you. 😉
 
Last edited:
Backflip said:
I think it is not my duty to convince you and to create a video to satisfy your purposes - I´m happy if my bike works well and if you don´t believe in this, it is up to you. :LOL:
Is there any reason why I should write publicly that the mod is working if it is not - that makes no sense for me, but maybe for you...
Just have a look around in this forum and others and you will see that there are a lot of users which have done this EMAX solution for the 801. Also there are already videos of this tuning in the net.
Click to expand...
is it a US drive unit ?
 
Backflip said:
I think it is not my duty to convince you and to create a video to satisfy your purposes - I´m happy if my bike works well and if you don´t believe in this, it is up to you. :LOL:
Is there any reason why I should write publicly that the mod is working if it is not - that makes no sense for me, but maybe for you...
Just have a look around in this forum and others and you will see that there are a lot of users which have done this EMAX solution for the 801. Also there are already videos of this tuning in the net.
Click to expand...
how many month now you did the emax tuning ? error free ? what speed can you reach ?
 
50kph, few months now and several hundred kilometres of riding. Zero problems. You can trust the guys at e-max tuning. UK model bike with ep801 motor.
 
Fielonator said:
50kph, few months now and several hundred kilometres of riding. Zero problems. You can trust the guys at e-max tuning. UK model bike with ep801 motor.
Click to expand...
that's a good one , I trust, just want to know 😁

because I've Heard of error 295 299 ...

what 's your Wheel diameter ? did you changed it ?
 
I'm blowing out my arse at 18-19mph max on a Ep8 that's gone past the 25kmh/15.5mph limit on a 36T chainring and larger 29" wheels on a flat road (not off-road).
I thought (I might be wrong I usually can be) that US motors had higher internal reduction gearing so that US riders can get to 20mph without having to pedal 30% faster, than our piddling 15.5mph limit. Anyone know if the motors reduction gearing is the same in both EU and North American motors?
 
You must log in or register to reply here.
Keep reading
    Browse all

    Similar Threads

    Community Stats

    Since 2018
    668K
    Messages
    40,759
    Members
    Join 30,000+ Riders, it's free!
    Back
    Top