oxydrive kit help required please

[lanerboy]

Hi All

I have 2 oxydrive kits on our mountain bikes both with 26 inch rear wheel drive motors now my question is could I take the motor out of the rear wheel and have it fitted into a 27.5 or a 29 inch rear wheel as I want to swap one of the bikes and 99% of newer mountain bikes now come with bigger wheels.

Has anyone done this and is it possible if so where would I buy the spokes from the wheel rim is easy but the spokes I am not so sure

All advise welcome

Regards

LB

 

[Woosh]

You can save yourself a bit of money by keeping the motor wheel like it is if the new bike has disc brakes. Just fit it like it is. If the tyres are the same brand and model, just different in size, it won't look bad.
if you still want to change the rims, most bike shops can cut and roll the 14 gauge stock spokes to fit your wheel (albeit the original spokes are 13 gauge).

 

[wheeliepete]

No problem to lace the motor into another rim. Take a clear photo of your wheel so you can follow the spoke pattern, usually 2 cross for a smallish hub motor is about right. 1 cross maybe for a bigger motor. If the spoke angle falls below about 75* drop a cross. Don't worry spoke calc shows you this. I laced up my wheel and got my LBS to true it for me. Bought these a couple of weeks ago, turned up quickly and the right length. Build went great

https://www.ebay.co.uk/itm/Packs-of-18-Sapim-silver-plain-gauge-bicycle-spokes-with-nipples/263703211017

Used this spoke calculator -easy to use with handy tips.

http://www.ebikes.ca/tools/spoke-calc.html

 

[lanerboy]

Thanks Woosh

I did wonder about fitting the 26 inch wheel in a mountain bike that has 27.5 wheels as I have not bought another bike yet I am still looking what to buy her.

If I went for say a bike with 29 inch wheels or 700cc wheels how do I find out what spokes I would need to change the motor over

Cheers

LB

 

[lanerboy]

Thanks Pete great reply

I will try and work out what I need

Many Thanks

LB

 

[wheeliepete]

Just to add you will need the rim you plan to use to measure the ERD. This is the most critical measurement, the spoke length changes with each mm the ERD changes.

 

[Woosh]

If I went for say a bike with 29 inch wheels or 700cc wheels how do I find out what spokes I would need to change the motor over

you have to use the spoke calc tool above.
If your motor is SWX02 (from memory), set the hub to BPM then change the flange diameter to 145mm.
For example: 700C rim, 1-cross pattern, left spoke: 235.4 mm, right spoke: 234.8 mm.

Buy 235mm

 

[lanerboy]

ok I will find the right bike then get a spare rim and go from there

Out of interest does anyone fancy doing it for me if I post it all out to you if so what cost would I be looking at

Cheers

LB