Orbit Tandem & Woosh DWG22c 48v rear hub kit

Jodel

Pedelecer
Oct 9, 2020
65
39
I'm definitely a fan of Marathons - and especially the Marathon Plus. I know they are very heavy and can sometimes feel like you're peddling through treacle*, but not having to stop to fix punctures is a big advantage for me. In over 10 years and 1,000's of miles of using them, I've never had a puncture with a Marathon Plus and only one with a normal Marathon.

I've used the Marathon Supreme too - they roll much better and are more comfortable, but nothing like as bullet proof as the Marathon Plus.

* That feeling is eliminated when you have a motor to help!
 

tandemfans

Finding my (electric) wheels
Apr 22, 2016
9
0
64
Hi Jodel,
Ray here again, still pondering. Im attaching a pic of the rear axle, Is this pretty similar to what you have on your Orbit? The axle is splined not square taper. Measuring between the stays I have just shy of 70mm available so shouldnt encounter any problem fitting a suitable width tyre.The pic with the rule doesnt really show the actual width but was the best I could do. Were the throttle and the brake cut outs included in the kit or separate.
Look forward to hearing from you.
447324473344734
 

Jodel

Pedelecer
Oct 9, 2020
65
39
Hi Ray, my tandem uses 'traditional' square taper bottom brackets rather than Hollowtech II type, but that shouldn't really matter. Woosh can supply a split ring magnet disk so that you can fix this to the inner chainring instead of fitting over the BB axle. You could of course use a square taper PAS disk, just drill it out to fit (24mm if I remember) but the split disk is probably an easier option.

If you look on the Woosh web-site there is a lot of info about fitting the kits, so well worth having a read: https://wooshbikes.co.uk/?hubkits

All the bits you need are included in the kit, including the brake cut outs and the throttle.

They also suggest you read through the fitting manual / guide prior to buying a kit so that you understand what is involved: https://wooshbikes.co.uk/manuals/Hubkit-Manual-June21.pdf

It doesn't look like you'd have any problem with a wider tyre, but your mudguard appears to be quite a snug fit (although that may just be the angle of the photo). Do you have sufficient clearance for a larger diameter tyre? Bear in mind that the diameter / circumference of a wider tyre will be a bit bigger. My Orbit is OK with a 622 x 40 Marathon Plus and I could probably get away with a 622 x 42 and still retain my mudguards. I think if I wanted to go up to a 622 x 47 or 622 x 50, I'd have to remove the mudguards. I have SKS 45mm wide mudguards fitted to my bike at the moment.

Hope this helps.
 

tandemfans

Finding my (electric) wheels
Apr 22, 2016
9
0
64
Hi Ray, my tandem uses 'traditional' square taper bottom brackets rather than Hollowtech II type, but that shouldn't really matter. Woosh can supply a split ring magnet disk so that you can fix this to the inner chainring instead of fitting over the BB axle. You could of course use a square taper PAS disk, just drill it out to fit (24mm if I remember) but the split disk is probably an easier option.

If you look on the Woosh web-site there is a lot of info about fitting the kits, so well worth having a read: https://wooshbikes.co.uk/?hubkits

All the bits you need are included in the kit, including the brake cut outs and the throttle.

They also suggest you read through the fitting manual / guide prior to buying a kit so that you understand what is involved: https://wooshbikes.co.uk/manuals/Hubkit-Manual-June21.pdf

It doesn't look like you'd have any problem with a wider tyre, but your mudguard appears to be quite a snug fit (although that may just be the angle of the photo). Do you have sufficient clearance for a larger diameter tyre? Bear in mind that the diameter / circumference of a wider tyre will be a bit bigger. My Orbit is OK with a 622 x 40 Marathon Plus and I could probably get away with a 622 x 42 and still retain my mudguards. I think if I wanted to go up to a 622 x 47 or 622 x 50, I'd have to remove the mudguards. I have SKS 45mm wide mudguards fitted to my bike at the moment.

Hope this helps.
Hi Jodel, thanks for the speedy reply. I'll bear that in mind when I order. Yes the mudguard Is a snug fit so would need to be changed. Looks I might be getting a winter project. Fingers crossed it all goes ok. Thanks again. Regards Ray
 

tandemfans

Finding my (electric) wheels
Apr 22, 2016
9
0
64
Hi Jodel, thanks for the speedy reply. I'll bear that in mind when I order. Yes the mudguard Is a snug fit so would need to be changed. Looks I might be getting a winter project. Fingers crossed it all goes ok. Thanks again. Regards Ray
Hi Jodel,
Well I took the plunge and ordered and due tomorrow.
Got home from a walk yesterday and there it was by the back door so the work begins.
Andy at Woosh said the best route would be a seat post mounted sensor so thats what's come and the split magnetic ring. I think you used the split magnetic ring didnt you? How have you fixed it to the chainwheel?
It has a plastic bracket to affix with cable ties but at the moment cant see any satisfactory way of using it but I dont think there would be sufficient space for that and the ring anyway.
I think with just the ring in situ there would be just about enough space/clearance448094481044811.
We usually have a 28 tooth inner but ive changed it back to the old 30 tooth one for now at has a few slots I thought may be useful which the smaller ring doesnt have but no joy yet.
I cant believe Im going to fail at the 1st hurdle and just hoping I cant see the wood for the trees.
Hoping you can offer some ideas. Thanks Ray
 

Woosh

Trade Member
May 19, 2012
16,429
14,141
Southend on Sea
wooshbikes.co.uk
use a bit of the black double sided sticky fixers that come with the kit over the 5 ring bolts to stick the magnet ring to the chain ring.
Later, when everything is working, you can use araldite or add some small 3mm bolts through the ring bolt holes to make the fix permanent.

 

Jodel

Pedelecer
Oct 9, 2020
65
39
What Woosh said above.

I have square taper BB's so used an 'ordinary' magnet disk. If space is tight, you don't need the plastic backing plate. As Woosh said, just use double sided tape / blu-tac or anything really to hold the magnet disk in place until you have the positioning correct and can verify that it triggers the motor when you turn the cranks. You can then make it a bit more permanent with small bolts.

It doesn't have to be fixed in an especially robust manner. There is no force applied to the magnet disk, it just needs to be able to register the crank rotation with the PAS on the bike.
 

tandemfans

Finding my (electric) wheels
Apr 22, 2016
9
0
64
Thanks both. Got it attached with the double sided tape for now. Will address permanent fixing once we're up and running.. not alot to work with on the chainwheel unfortunately. On to the wheel next