SAMEBIKE E-ONE 20LVXD30 chainwheels and pedal assist

[squirrel22]

In flat parts of the country the original chainring leaves you unable to add anything to pedalling when you've got up to a good speed.
I decided to buy a new chainring with a few more teeth which will help. Unfortunately I bought a Litepro 130 BCD 53 Tooth chainring after reading a few posts in various places and the d@mn thing is the wrong size! I think my original chainring is more like 150 BCD and it looks like its held in place with plastic screws possibly with a rivet inside although I haven't looked very close up.

I'm thinking its best to get a crank set to match the Litepro 130 BCD 53 Tooth chainring I've just bought?

Also, has anyone found a way of making the pedal assist kick in at a different speed or switch it off altogether but still have throttle power?

 

[Raboa]

I have not bought this but looks like it might fit.

Litepro 130BCD 45-58T Crankset Road Folding Bike Round Chainring Fit 6-10s Chain | eBay

We will ship from real UK warehouses, 1-3 days delivery time,fast and efficient shopping experience, as well as brand quality assurance for you.We offer 30 days money back guarantee return policy. If you have any questions, we will reply to you within 24 hours. Crank description: Brand: Litepro...

www.ebay.co.uk

 

[squirrel22]

I have not bought this but looks like it might fit.

https://www.ebay.co.uk/itm/125105194793?hash=item1d20d9c729:g:pDAAAOSw~w9h5TxG&var=426165454332

Thanks but that is what I bought and it doesn't fit the original crank sadly or did you mean the Litepro crank that matches it?

 

[Raboa]

This says you can buy the crank only. You have to select it from the options.

https://www.ebay.co.uk/itm/125105194793?hash=item1d20d9c729:g:pDAAAOSw~w9h5TxG&amdata=enc:AQAHAAAA8HxmKddDwBOd5/7jYMIpW7X/PzggLIDAu45C/T+CHd2ISR5IS2mBjZqO9WoBWdUrZ0Cq10Afy5bkru1qdRe6C9foVT1wLmx8fQ/tLT+aL6p/f8qe/44ok2EGXEe6TyWNbSGponT/ex8HaPXMP2te77F2tljxo75PN9Y7ngzmFQzSWCrzaDpjMwzsQIeZEWs8ayz1pKq0YjMLdgb6DIXkwr9W1rQLEQhgIb1f10VQclEIK7kFntw4Qc0FLrvY/0L4DmEie4LpRxjJMiIdFvxstdVzLmBgONtEfAWhsG/n9RX1u9zEbPDQgAC7P+K2WWizGw==|tkp:BFBMioKDnehg

 

[squirrel22]

Thanks, I've ordered one.

Any ideas around making the pedal assist kick in at a different speed or switch it off altogether but still have throttle power?

 

[chrisbrillo]

Thanks, I've ordered one.

Any ideas around making the pedal assist kick in at a different speed or switch it off altogether but still have throttle power?

my 20LVXD30 II you cant change the pedal assist setting on PO11 & 12 - they are locked

 

[squirrel22]

my 20LVXD30 II you cant change the pedal assist setting on PO11 & 12 - they are locked

Thanks for that. It looks like I can change up to P11 but I don't have a P12. What does P11 do?

 

[chrisbrillo]

Thanks for that. It looks like I can change up to P11 but I don't have a P12. What does P11 do?

amount of magnets passed on the crank before pedal assist kicks in 1-24 fixed at 2, P12 if you had it is pedal assist strength.

 

[squirrel22]

amount of magnets passed on the crank before pedal assist kicks in 1-24 fixed at 2, P12 if you had it is pedal assist strength.

My P11 reads zero. Possibly a default??

 

[chrisbrillo]

My P11 reads zero. Possibly a default??

possibly - I was surprised that my settings were locked as I'd not seen that before - if you can get to P10 those are pedal assist/throttle settings.
P10 Driving mode.
0: driven by PAS. Throttle is useless at this time.
1: driven by Throttle. PAS is useless at this time.
2: driven by PAS & Throttle. Throttle is useless at Zero Start status.

 

[squirrel22]

possibly - I was surprised that my settings were locked as I'd not seen that before - if you can get to P10 those are pedal assist/throttle settings.
P10 Driving mode.
0: driven by PAS. Throttle is useless at this time.
1: driven by Throttle. PAS is useless at this time.
2: driven by PAS & Throttle. Throttle is useless at Zero Start status.

My P10 is changing kph to mph. Did you mean P11? PAS and Throttle both work on mine but I'd like to try it with no PAS as Throttle to get started and then just pedal might be what I'd like.

 

[chrisbrillo]

My P10 is changing kph to mph. Did you mean P11? PAS and Throttle both work on mine but I'd like to try it with no PAS as Throttle to get started and then just pedal might be what I'd like.

definitely p10 on my controller ????

 

[squirrel22]

definitely p10 on my controller ????

I bet we've different controllers. My display looks like this....

 

[chrisbrillo]

I bet we've different controllers. My display looks like this...View attachment 48925.

yes different

 

[RiderJake]

This says you can buy the crank only. You have to select it from the options.

https://www.ebay.co.uk/itm/125105194793?hash=item1d20d9c729:g:pDAAAOSw~w9h5TxG&amdata=enc:AQAHAAAA8HxmKddDwBOd5/7jYMIpW7X/PzggLIDAu45C/T+CHd2ISR5IS2mBjZqO9WoBWdUrZ0Cq10Afy5bkru1qdRe6C9foVT1wLmx8fQ/tLT+aL6p/f8qe/44ok2EGXEe6TyWNbSGponT/ex8HaPXMP2te77F2tljxo75PN9Y7ngzmFQzSWCrzaDpjMwzsQIeZEWs8ayz1pKq0YjMLdgb6DIXkwr9W1rQLEQhgIb1f10VQclEIK7kFntw4Qc0FLrvY/0L4DmEie4LpRxjJMiIdFvxstdVzLmBgONtEfAWhsG/n9RX1u9zEbPDQgAC7P+K2WWizGw==|tkp:BFBMioKDnehg

Is this the best option or just so-so?

 

[squirrel22]

Is this the best option or just so-so?

I found I had to get both the crank and chainring and a crank puller to sort the job out. I went for the Litepro 130BCD with 53 tooth chainring which is a significant improvement on the original and I'm using gears 5 to 7 now instead of never changing out of 7. You might be able to go to 56 teeth without extending the chain which would be better still. In the photo you can see where 53 teeth gets the derailleur...

 

[squirrel22]

Is there a way of extending when pedal assist kicks in so that you have to pedal more before it gives you a push?

I'm thinking that the Display settings are just that and by changing the P06 "Magnetic poles in sensor" from 43 to another value that it won't effect when pedal assist comes in. Am I right or is it as simple as changing the value?

If it is all down to the magnets around the disk next to the bottom bracket/crank then each time a magnet passes the Hall effect sensor it will trigger a signal. So I'm thinking if I removed one magnet so it only had 4 on the disk that should mean pedal assist doesn't kick in until 20% more pedal effort is put in. Has anyone tried this?

Any thoughts welcome!

btw I did change to a 56T chainwheel

 

[saneagle]

Is there a way of extending when pedal assist kicks in so that you have to pedal more before it gives you a push?

I'm thinking that the Display settings are just that and by changing the P06 "Magnetic poles in sensor" from 43 to another value that it won't effect when pedal assist comes in. Am I right or is it as simple as changing the value?

If it is all down to the magnets around the disk next to the bottom bracket/crank then each time a magnet passes the Hall effect sensor it will trigger a signal. So I'm thinking if I removed one magnet so it only had 4 on the disk that should mean pedal assist doesn't kick in until 20% more pedal effort is put in. Has anyone tried this?

Any thoughts welcome!

btw I did change to a 56T chainwheel

It depends on the software in the controller. Normally people want the delay shortened, not lengthened.

Rather than change the chainwheel, it might have been cheaper and more convenient to change your rear gear cluster. That would only have changed the pedal speed in top gear, giving you better ratios for starting and hill-climbing. How many teeth on your top gear - 11, 12, 13 or 14?

 

[squirrel22]

It depends on the software in the controller. Normally people want the delay shortened, not lengthened.

Rather than change the chainwheel, it might have been cheaper and more convenient to change your rear gear cluster. That would only have changed the pedal speed in top gear, giving you better ratios for starting and hill-climbing. How many teeth on your top gear - 11, 12, 13 or 14?

The chainwheel change to 56T certainly gave a more sensible gear range. I hadn't thought of changing the rear gear cluster. I'm not with the bike and not certain how many teeth on top gear at the moment. I'd be looking for a cassette with a smaller number for top gear I guess?