Hi all it’s been some time since I posted, I’ve tried to look through the forum but couldn’t find exact answer.

Problem is,

I’ve had bike from new Dec 2015, retirement present to myself, m now 75.5 years young for context.

Oxygen EMate MTB , with I think the Das-kit display well I know it is but not exact model? I’ve lost the throttle control, it will go into walk mode, can’t figure out how to fix,

I know the general settings, in fact I was trying to FIX the speed at 15.5 mph when I lost it.

I was in the settings and I was looking for a way to fix ( permanently) the speed at 15.5 so if stopped I was ok the the law, I’m in UK.

I took the speed up on the controller to max then down to 0 zero just to see what that would do, as you’ve guessed it was walk mode only, reset to any speed and it would only go at walk speed, messed with it but no joy.

Anybody help please I need throttle for hill starts, I rarely use it, maybe more than I think?

Bear with me for feedback I have NHS appointments next few days.

But I will reply to comments, usually evenings, thanks,,,,,

It's been a long time since I've been involved with those bikes, but this is what I remember. 1. Those Das Kit throttles are standard, but they reversed the connectors male to female so that you couldn't use a standard one without cutting and soldering a wire. 2. There are two speed limits that can be set separately - one for the throttle and one for the pedal assist. 3. I seem to remember another setting that set the throttle to fixed 6km/hr, where you see 6 in the display; or independent, which, after selection shows the set speed limit, though I can't remember the default. 4. The settings are all logical and easy to figure out once you know about the two speed limits. 5. I seem to remember, though not sure, that whatever you do to get to the settings, you have to do again to get to the throttle setting.

 

Be very careful about having an independent throttle on your bike. The police are doing a lot of checking, as you can see in out "Seizures" thread. They don't take prisoners. If your bike has an independent throttle, they'll take your bike. I don't think it's worth the risk unless you only ride where there's absolutely no chance of police.

ThanksSaneagle for info, I’ll give it another try tomorrow,

As for throttle and the law.

I’m under the impression that as my ebike was built and bought before 2016 new regs, as long as THE BIKE couldn’t exceed 15.5 with power even using the throttle I will be legal.

I have the original receipt.

 

Grandfather Rights:

E-bikes sold before January 1, 2016, with full-speed throttles were generally considered legal, even after the regulations changed, due to "grandfather rights".

 

I would welcome clarification on this,

 

The reason as stated for my issue was I was trying to fix it at 15.5 permanently.

ThanksSaneagle for info, I’ll give it another try tomorrow,

As for throttle and the law.

I’m under the impression that as my ebike was built and bought before 2016 new regs, as long as THE BIKE couldn’t exceed 15.5 with power even using the throttle I will be legal.

I have the original receipt.

 

Grandfather Rights:

E-bikes sold before January 1, 2016, with full-speed throttles were generally considered legal, even after the regulations changed, due to "grandfather rights".

 

I would welcome clarification on this,

 

The reason as stated for my issue was I was trying to fix it at 15.5 permanently.

Yes, this is correct. The problem is that not a lot of police know that. Somewhere, possibly in the seizure thread, there was a training video for the police that showed a guide sheet with a sort of flow chart/checklist on it that had it on it. If you can find that sheet using Google or search that thread for it, you could produce it when checked.

I found this via google

 

Key Rules for E-bike Throttles (UK Police Enforcement)

Police forces use the following criteria to determine the legality of an e-bike's throttle mechanism on public roads:

• "Walk-assist" Throttles are Legal: The only type of throttle generally permitted on a standard EAPC (without further approval as a moped) is one that provides assistance without pedalling up to a maximum speed of 6 km/h (approximately 3.7 mph). This is designed for moving the bike from a standstill (e.g., at traffic lights) or pushing it up a ramp.
  
• Full-speed Throttles are Generally Illegal: A "twist and go" throttle that can propel the bike to speeds above 6 km/h (3.7 mph) without the rider needing to pedal means the bike is classified as a moped or motorcycle.
  
• Conditions for Full-speed Throttles: An e-bike with a full-speed throttle (assisting up to 15.5 mph without pedalling) can be legal, but only if it has been "type-approved" by the DVSA as an L1e category low-powered moped. This process requires the owner to:
  
  • Register and tax the vehicle.
    
  • Have appropriate insurance.
    
  • Display a number plate.
    
  • Possess a driving licence (provisional or full) and wear a motorcycle crash helmet.
    

  [*]

  • E-bikes Sold Before 2016: E-bikes with a full-speed throttle sold before January 1, 2016, are exempt and still considered legal EAPCs.
    

Thanks for confirming this, Saneagle and Esuark, that is my understanding, as mentioned getting the PC to understand this WILL be the problem, I do have the original receipt unfortunately the print has faded considerably,

I’ve just replaced the main control wire in the motor and replaced all the bearings which was surprisingly easy.

Then to lose the throttle settings is a real downer.

 

in case anyone is wondering I’ve replaced the battery 3 times now I’m on Yose Power, with a spare battery on the Down tube.

Anyway we pedal on.

 

I do have the original receipt unfortunately the print has faded considerably

 

 

Probably not too difficult to knock up a replica receipt for someone with reasonable computer skills. The company logo is easily obtained from the Internet (if there is even a logo on your original receipt).

 

 

I don't suppose the year of manufacture is anywhere on the bicycle or electical parts? Bit of a longshot.

Have you dbl checked all the other configurable parameters and verified nothing changed in err or as an unexpected side effect of the speed limit mods made?

I found this via google

 

Key Rules for E-bike Throttles (UK Police Enforcement)

Police forces use the following criteria to determine the legality of an e-bike's throttle mechanism on public roads:

• "Walk-assist" Throttles are Legal: The only type of throttle generally permitted on a standard EAPC (without further approval as a moped) is one that provides assistance without pedalling up to a maximum speed of 6 km/h (approximately 3.7 mph). This is designed for moving the bike from a standstill (e.g., at traffic lights) or pushing it up a ramp.
  
• Full-speed Throttles are Generally Illegal: A "twist and go" throttle that can propel the bike to speeds above 6 km/h (3.7 mph) without the rider needing to pedal means the bike is classified as a moped or motorcycle.
  
• Conditions for Full-speed Throttles: An e-bike with a full-speed throttle (assisting up to 15.5 mph without pedalling) can be legal, but only if it has been "type-approved"by the DVSA as an L1e category low-powered moped. This process requires the owner to:
  
  • Register and tax the vehicle.
    
  • Have appropriate insurance.
    
  • Display a number plate.
    
  • Possess a driving licence (provisional or full) and wear a motorcycle crash helmet.
    

  [*]

  • E-bikes Sold Before 2016: E-bikes with a full-speed throttle sold before January 1, 2016, are exempt and still considered legal EAPCs.
    

We know what the rules are, but he needs something substantial to show the police, who probably don't know that rule. The document I referred to above was an official police guidance sheet. He needs something like that.

I also have an Oxygen Emate with a throttle and carry the letter recommended by one of the knowledgeable guys from this forum. I replaced the cassette the other day and found that, on that side of the motor, there was a date of manufacture. Not that you would want to strip it down when challenged! Also there is a frame serial number on the underneath of the bottom bracket. Perhaps Oxygen could confirm date of manufacture from this? Hope this helps.

Thanks for all replies you people are amazing,

I’ve sorted the problem now all seems ok, throttle and pedal power knocks of around 15/16 mph and dips back in around 14 mph ish,,

I think the info from Saneagle regarding two settings did for me, also I THINK maybe I didn’t press SET after making the changes back from zero, I don’t know, and I’m not reversing the procedure to find out,

Thanks to All who responded, esuark, waspy, thelarkbox, JohnD135.

JohnD135 would you like to publish this letter so I and any others could take advantage of it should the need arise.

 

I’m in the process of trying to obtain a copy Statement from December 2015 to show payment to SYEB, but Barclays Chat is down for some reason, don’t know if this will be possible 10 year old?

I bought two Oxygen bikes from South Yorkshire Electric Bikes-both eMates one Step through and my MTB, both been fantastic, I estimate I’ve done well in excess of 10,000 I can’t be accurate because the cumulative miles resets every time I turn it off? Only fault in all that time except for replacing batteries, cassette and chain, and recently replacing wire to motor,

 

I might add that anyone reading this, they are at least two cables for Bafang fun 8 motor, that look the same 9 pin male that look identical, colours are same but configured differently at pin end, however having fitted the wrong one, bike runs but not correctly, replaced with one from Ebike solutions £15.00 perfect, with hindsight anyone doing this need to check pin out with colour, old compared with new. Using multimeter.

 

alls good out most days, either on Honda Cub or E bike, on two wheels the great out doors.

Thanks for all replies you people are amazing,

I’ve sorted the problem now all seems ok, throttle and pedal power knocks of around 15/16 mph and dips back in around 14 mph ish,,

I think the info from Saneagle regarding two settings did for me, also I THINK maybe I didn’t press SET after making the changes back from zero, I don’t know, and I’m not reversing the procedure to find out,

Thanks to All who responded, esuark, waspy, thelarkbox, JohnD135.

JohnD135 would you like to publish this letter so I and any others could take advantage of it should the need arise.

 

I’m in the process of trying to obtain a copy Statement from December 2015 to show payment to SYEB, but Barclays Chat is down for some reason, don’t know if this will be possible 10 year old?

I bought two Oxygen bikes from South Yorkshire Electric Bikes-both eMates one Step through and my MTB, both been fantastic, I estimate I’ve done well in excess of 10,000 I can’t be accurate because the cumulative miles resets every time I turn it off? Only fault in all that time except for replacing batteries, cassette and chain, and recently replacing wire to motor,

 

I might add that anyone reading this, they are at least two cables for Bafang fun 8 motor, that look the same 9 pin male that look identical, colours are same but configured differently at pin end, however having fitted the wrong one, bike runs but not correctly, replaced with one from Ebike solutions £15.00 perfect, with hindsight anyone doing this need to check pin out with colour, old compared with new. Using multimeter.

 

alls good out most days, either on Honda Cub or E bike, on two wheels the great out doors.

I've never heard of different pinouts on a 9-pin motor connector or cable. Are you sure about that, and what is the difference?

 

If it were my bike, when it needs a new battery, I'd swap to a standard Hailong type and get a KT controller, which would probably together cost the same as the Oxygen one. The new arrangement would give you a better control system, and it also gives more options for increased power if you need it. Kt controllers can be bought in 36v/48v dual voltage versions, so you can use either a 36v battery or a 48v one without changing anything in settings. The 48v one will give 30% more torque. Your motor can easily handle that.

That’s interesting Saneagle, I’ll copy this info, for future use.

I’ve looked up Hailong battery and it’s similar to Yose power, when I need to I’ll try one.

 

The Oxygen batteries are no longer available, and yes £600. Ouch, I had mine re- celled, but the guy is no longer in business, so I bought a Yose Power for £130 , and adapted the fitting straight forward, ok not as good and most probably not Samsung cells but for £130 really great option,

I then bought a second one I carry as a spare reserve tank if you like, where I live it’s all hills, on a good day I’ll get 30 miles, very rarely use more than power 1 in eco mode, depends on the legs,

Throttle is a must for traffic lights and hill starts, I love it.

 

As for cable yes I’m sure, two different cables unless I was unfortunate in the manufacturing process, which I doubt, I checked myself and they are definitely different pin out colours.

I can’t describe how different only that the colour combination pin out is different,

I checked the replacement second cable with the first replacement and the are completely different, also obviously checked against original and different.

Edit.

Now I think of it the first replacement was different only slightly in the plastic fitting 9 pin end the indentation rings and the arrow marking is different to the original,

I’ll see if I still have it and post a photo?

Edited November 14, 2025Nov 14 by Lioncrunch

I also have an Oxygen Emate with a throttle and carry the letter recommended by one of the knowledgeable guys from this forum. I replaced the cassette the other day and found that, on that side of the motor, there was a date of manufacture. Not that you would want to strip it down when challenged! Also there is a frame serial number on the underneath of the bottom bracket. Perhaps Oxygen could confirm date of manufacture from this? Hope this helps.

 

Good advice, definitely worth contacting Oxygen to see if they can confirm date of manufacture.

 

If they can confirm, OP could keep a copy on his phone.

 

Also, I would whip that cassette off and take a picture of the date on the motor, trying to get as much of the bike in the picture as possible, keep that on his phone too.

 

Finally, a link to the Grandfather Rights legislation, also on his phone.

 

I think the more evidence you can produce, if stopped by the eBike seizure squads, the less likely they are to seize it.

All good advice Waspy, and all,,,I’ve done just about all suggested, I always go out in Hi-Vis yellow with flashing lights, hopefully that’ll help keep PC well away,

Can’t understand riders in all black, on any Two wheels…

Thanks again all,,,,,,,.,.