Swytch Ebike Conversion Kit

matthewslack

Esteemed Pedelecer
Nov 26, 2021
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Dropout spacing also matters...but on diameter fitting a motor intended for a 20" wheel in an 18" rim would only be 10% slow, so good enough.
 

Doninho11

Just Joined
Feb 1, 2025
2
0
I aim to buy a 'Riese & Muller Birdy' folding bike, (which has an 18" wheel setup) and would like to buy the Swytch Ebike Conversion Kit. I'd like to know if this is possible. Thanks.
 

matthewslack

Esteemed Pedelecer
Nov 26, 2021
2,134
1,493
 

sjpt

Esteemed Pedelecer
Jun 8, 2018
3,887
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Winchester
Looks as if you would need to buy the bare motor and build the 18" wheel yourself.
Swytch are not generally best for value for money or post-sales support;
but ready built 18" electric wheels look rare from other vendors too.
I can't see any except with non-geared motors which are unlikely to be suitable.
 

eas2lv

Pedelecer
Sep 1, 2024
40
9
Never seen 18" in Swytch wheel selection menu. Ask Swytch support.
For a folding bike also check the fork spacing. Swytch has two options -- the so-called universal which is 100mm, and folding which will fit 74 to 80mm. You have to choose one of the two based on your fork, not based on folding or not.