Quick and simple MTB/Hybrid set up

[Andrew08]

H All,
Since 2017 I had an Oxygen S Cross MTB. I had it derestricted, and It was really great. Unfortunately, it got stolen last week. The battery wasn't in the bike, so I still have that. I don't really have the budget to pick up a decent new ebike, so I was looking at just doing a simple conversion. Would it be possible to just get a fairly decent MTB for a few hundred quid and then get a conversion kit and attach the battery I have?

Something like this: link

And then get a bracket for the battery I have? Is it that simple?

Any advice would be appreciated.

 

[soundwave]

it depends if that batt has a smart bms or not to talk to the motor controller if not then yes to a point.

that batt will only pump out as much as the bms will allow so a 3000w kit whould be way over the amp limits for a batt that small= kaboom

 

[Andrew08]

Thanks. How would I know if it's a smart bms? It looks like it's basically a reention dorado battery (36V). I wouldn't be getting the huge power kit, just a 350W one.

 

[soundwave]

if the batt has just + _ and can get a voltage reading from a multimeter then it will work.

 

[Peter.Bridge]

https://www.facebook.com/marketplace/item/684471030114178/?ref=facebook_story_share and use it as a spare batteery

 

[Andrew08]

I think I would need one of these: Link
It looks like a normal battery

 

[soundwave]

if it was a smart bms there would be a 3rd coms connector on the port so it has a standard bms

 

[Nealh]

Oxygen batteries are generic they are nothing special and only utilise two wires.

 

[Andrew08]

So should be fairly simple then?

Anyone have good recommendations for a kit I could use with this? 36V, something around 250W-500W. Front wheel for simplicity.

Thanks for the help!

 

[saneagle]

H All,
Since 2017 I had an Oxygen S Cross MTB. I had it derestricted, and It was really great. Unfortunately, it got stolen last week. The battery wasn't in the bike, so I still have that. I don't really have the budget to pick up a decent new ebike, so I was looking at just doing a simple conversion. Would it be possible to just get a fairly decent MTB for a few hundred quid and then get a conversion kit and attach the battery I have?

Something like this: link

And then get a bracket for the battery I have? Is it that simple?

Any advice would be appreciated.

Your battery isn't designed to deliver high current. It's fine at 15 amps, but you can't go much higher. Those big direct drive motors need high current to work. Even when they get it, they're not very efficient and not suitable for stop-start riding, plus they're very heavy and make your bike unpleasant to riide without power. In other words, avoid them if you can. Stick to a normal geared hub motor.

There are some kits on Ebay that are OK. The best have KT controllers if you know how to recognise the LCDs.

 

[soundwave]

we stock Bafang Mid Motor kits from BBS01B 250W > BBS02B 750W >BBSHD 1000W> UK STOCKIST EBIKE MOTORS >BATTERIES>ACCESSORIES

500w BBS02 Bafang Mid Drive Motor (version B) 68-72mm 500C or c961 Screen Brake lever or sensor Chain Ring and Cover (44T) Crank Arms Left Thumb Throttle Speed Sensor with Spoke Magnet Main Wiring Harness (wiring that connects all the kit components) Xt60 battery connector Cable ties Free MOTOR...

reddragonebikes.co.uk

i think it has a 15a controller. uk seller and warranty and batts if you need one.

 

[thelarkbox]

Fairly new here with limited experience of 1 kit build and 1 refurbish underway. However i can recommend the yose power range of kts having fitted a rear wheel 250w kit. they sell a 350w kit too which can afaik be de-restricted fairly easily. but the quality of the kit the tools supplied and the response times of email support queries, all contribute to a positive purchase experience. other folk have had good things to say about them in here too.
my quick google seems to indicate the yose power 350w motor is only available in rear wheel kits?
the 250w kits are NOT easy to de-retrict and require controller/headset replacement. different brands of controller.

 

[Andrew08]

Something like this? link

 

[soundwave]

the 250w one is only 20-30nm the bafang is double the price but a much better motor and you could up the power in the future with a 20-30a capable batt.

also every part can be bought and easy to service.

 

[Andrew08]

Is it hard to install though? I'm a bit of a novice?

 

[Andrew08]

As long as I can get similar torque to what I got with the Oxygen MTB, then I'm fine with that.

 

[soundwave]

load of vids on you tube you just need a frame with the right size bottom bracket and it just slides in.

 

[saneagle]

Something like this? link

That looks pretty good. The controller is 20A, so should give a bit more power than your Oxygen.

 

[Andrew08]

load of vids on you tube you just need a frame with the right size bottom bracket and it just slides in.

Would this be 'speed limited'?

 

[thelarkbox]

Something like this? link

buy some washers you will need the for the brake levers, the clamping screw uses a blind hole and bottoms out before it clamps the bars, washers help 'shorten' the screw. and be mindful to replace the plastic adjustment h/w with the ones from your old levers too.