20" wheel build - advice please

[Kuhneye]

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?

 

[Deleted member 4366]

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?

 

[Kuhneye]

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]

 

[Kuhneye]

Both sides look the same

 

[Kuhneye]

 

[Kuhneye]

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]

Both sides look the same

Even though both sides might look the same, your pic is of the wrong side for the hanger.

 

[Kuhneye]

Correct side

 

[Kuhneye]

I'm guessing that there is no ready made place to attach hanger to?

 

[Deleted member 4366]

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

 

[Kuhneye]

Thank you so much!

There is 2 options in that link:

1- direct mount (bolt on)
2- hanger (hook on)

 

[chris_n]

2

 

[Kuhneye]

So do I have it right now?:

https://www.taylor-wheels.com/bike-wheels/20-inch-bike-wheel/20-inch-rear-wheels/?laufrad_bremsart=28

https://www.taylor-wheels.com/replacement-set-7-speed-shimano-hg40-chain-freewheel-hg37

http://m.ebay.co.uk/itm/371972666914?_trkparms=aid=222007&algo=SIM.MBE&ao=2&asc=43782&meid=03df4ad3362f41e79d256224a0ee7a9b&pid=100005&rk=3&rkt=6&sd=331198084632&_trksid=p2047675.c100005.m1851&_mwBanner=1&varId=640911478030

And any LBS would be able to drill n tap & assemble everything?

Approximately £54 (+£21 for matching front wheel) for parts and delivery + £? Labour