20" wheel build - advice please

Kuhneye

Pedelecer
Jun 20, 2017
38
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London
I'm considering building a rear wheel with 8 speed cassette for my ebike.

It's a Winora Radius plain, disc brakes, i3 hub gears (which are shot), 20" wheels with Schwalbe Big Ben 2.15"/55mm tyres.

Will the following parts fit together?:

https://www.taylor-wheels.com/bike-wheels/20-inch-bike-wheel/20-inch-rear-wheels/taylor-wheels-20inch-bike-rear-wheel-gruenert-dynamic4-6-bolt-disc-5-8-black

https://www.taylor-wheels.com/bike-parts/cassettes-chains/cassettes/replacement-set-cassette-8-speed-shimano-chain-hg40-cassette-hg41

https://www.taylor-wheels.com/shimano-alfine-chain-tensioner-ct-s500-black

Am I getting this right? Am I missing parts? Is this possible to add a derailleur wheel in place of hub gear?
 
D

Deleted member 4366

Guest
No. It's a freewheel hub, so only takes freewheel gears, not cassettes. You need a hub with the cassette spline. Does your bike have a fixing for the derailleur hanger or have you figured out how to fix the derailleur?
 
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Kuhneye

Pedelecer
Jun 20, 2017
38
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48
London
Hi, thanks for that.

I'm not sure to be honest if it has a fixing for derailleur. What am I looking for? I'll add a photo of side
 

Kuhneye

Pedelecer
Jun 20, 2017
38
1
48
London
I found this above screen shot.

So I attach the derailleur hanger to wheel then attach derailleur to hangar after doing the above maths?
 

Nealh

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Aug 7, 2014
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Deleted member 4366

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The cheapest derailleurs that you get on the £80 chain-store bikes can probably be fitted on your bike, but you'd need to drill and tap a hole for the retaining screw at the top:

If you look at this picture, you need one with the fitting like the left one:

http://www.ebay.co.uk/itm/Shimano-Tourney-Rear-Derailleur-Mech-6-7-Speed-TY300-Gear-shifter-Bike-Bicycle/371972666914?_trksid=p2047675.c100005.m1851&_trkparms=aid=222007&algo=SIM.MBE&ao=2&asc=43782&meid=03df4ad3362f41e79d256224a0ee7a9b&pid=100005&rk=3&rkt=6&sd=331198084632
 
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