Pendleton Somerby pre 2019

sjpt

Esteemed Pedelecer
Jun 8, 2018
3,828
2,755
Winchester
What about the 12AH option? its only a few quid more expensive, would that be better option?
The higher power one will probably have a slightly longer life. Maybe the same number of recharge cycles, so 15% longer life in miles. It might have slightly less voltage sag as well, certainly if it is made with more parallel groups of the same cells as the lower power one.
 

adamsowy

Finding my (electric) wheels
Oct 17, 2024
17
0
The higher power one will probably have a slightly longer life. Maybe the same number of recharge cycles, so 15% longer life in miles. It might have slightly less voltage sag as well, certainly if it is made with more parallel groups of the same cells as the lower power one.
Thank you. I’m generally getting the idea, more AH more miles. Is it better trying to get yose power battery, fix what I have or but one from Aliexpres?
 

Sturmey

Esteemed Pedelecer
Jan 26, 2018
640
350
68
Ireland
Original wiring has 3 cables:
cable 1 has 3 plugs in the front - one green 5pin for display and two red 2pin for brake sensor and the end section is black 6pin into controller
cable 2 is yellow 3pin from pedal assistance sensor to yellow 3pin into controller
cable 3 is from motor to controller

Photo one with existing controller,

photo two: 3 cables from controller: 1st to connect motor, 2nd for pedal assistance and 3rd for display brake sensors

What I'm thinking is to get this cable to "extend" the single yellow 3pin so I can plug the existing pedal assistance sensor and the new throttle which has a short cable so I need to get this cable to extend because the connection is in the back. What makes me wonder is if adding the throttle to pedal assistant won't cause surge/overload

I found this display with 5pin WP plug which is very similar to what I have however I cant find any diagrams for wires.

The most important is to add throttle, the display is not necessary.

Thank you
My daughter had similar black pendleton bike bought in black friday sale 2017 for 600 euro. Getting a throttle to work could be difficult with your existing setup. There is the possibility of some kind of dongle/gadget available that can convert the throttle signal into pas pulses I think. Some one else my know about that. Changing to the KT throttle, controller, cables, display and possible the brake levers is probability a better option.
If it was my bike, I would first like to see what needs to be spent before I would buy an expensive battery. The pendleton will accept any 36V so it would be great to check out the existing electrics first. I would also check the bike in general and especially the rear wheel for loose spokes and the rim for wear on the brake surface as from looking at your photo, I cant see a clear wear indicator grove which would show that the rim was not worn. (Sorry if I appear to be a pessimist, but its nice to know what costs lie ahead )
 
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adamsowy

Finding my (electric) wheels
Oct 17, 2024
17
0
My daughter had similar black pendleton bike bought in black friday sale 2017 for 600 euro. Getting a throttle to work could be difficult with your existing setup. There is the possibility of some kind of dongle/gadget available that can convert the throttle signal into pas pulses I think. Some one else my know about that. Changing to the KT throttle, controller, cables, display and possible the brake levers is probability a better option.
If it was my bike, I would first like to see what needs to be spent before I would buy an expensive battery. The pendleton will accept any 36V so it would be great to check out the existing electrics first. I would also check the bike in general and especially the rear wheel for loose spokes and the rim for wear on the brake surface as from looking at your photo, I cant see a clear wear indicator grove which would show that the rim was not worn. (Sorry if I appear to be a pessimist, but its nice to know what costs lie ahead )
Thank you, I like pessimism, best approach

TBH bike seems to be in almost a brand new condition
@Sturmey I took a picture of the rear tyre for you
 

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Jul 17, 2024
82
4
I have a whole step through Pendalton Somerby fully working member price £350.00 collection from London NW2 great battery fully working. The lady I bought it from fell off and never used it again.

My wifes bike not sure of the year .

cheers
baz
 

adamsowy

Finding my (electric) wheels
Oct 17, 2024
17
0
@saneagle suggested that this set should be able to take any 36Vbattery so I used my sons motorbike to get the battery out to test Pendleton Somerby and everything works just fine. Took it out to test it (I have never used electric bike before) and I almost killed myself, its so slippery outside and I deduced to use front break, almost ended up being run over by a car :D
 

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adamsowy

Finding my (electric) wheels
Oct 17, 2024
17
0
Last two things

1. I am still in pursuit of the solution for this post:
can I add a throttle to this bike without causing a surge or fire?
2. I need a new battery

Since we know now that this controller can take any 34v battery i took the housing off the bike and I took it apart to see if someone could suggest a new better one, with a longer lifespan

I like this one quite a lot however I have no idea if the cells are good
 

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