Leafmotor axle size

Obelous

1 mW
Joined
Aug 6, 2024
Messages
13
Location
United Kingdom
Does anyone know if the Leafmotor axle is 12mm or 14mm?

Also will I have to file my standard 135mm quick release dropouts for them to fit?
(apparently you have to file even for 12mm axles??)

I really want the cassette version but on the leaf bike website it says it's actually 137mm, will I have to bend my dropouts and is it ok to have a 1mm deflection each direction for aluminium?

1500w-cassette-bike-motor-drawing_cacdbd7fd1.jpg
 
Does anyone know if the Leafmotor axle is 12mm or 14mm?

Also will I have to file my standard 135mm quick release dropouts for them to fit?
(apparently you have to file even for 12mm axles??)

I really want the cassette version but on the leaf bike website it says it's actually 137mm, will I have to bend my dropouts and is it ok to have a 1mm deflection each direction for aluminium?
It's a good idea for the centerline of the new axle to match that of the old, especially if you have disc brakes. So in a 10mm dropout, 1mm for a 12mm axle, or 2mm for 14mm, etc.

On the axle diameter(s), check the leaf thread. More complicated for the cassette version. Read through the discussion since I think there was some new info..
 
Also will I have to file my standard 135mm quick release dropouts for them to fit?
(apparently you have to file even for 12mm axles??)
You will want the axle to set at the same depth as the original (or near enough to avoid disc brake misalingment as E-HP mentions above). You can carefully file the dropout deep "corners" to relieve the radius so it better matches that of the flat-to-round transitions of the wider axle. NOTE: do not create a squared off corner to avoid creating a stress riser. Use a round file.

Example:

 
Don't file dropouts-- they're mostly kind of weak as it is. Do use torque arms that are substantial enough and well attached enough that they would hold the wheel on by themselves.

Better to modify a disc caliper bracket if disc location is a problem, than to butcher your frame.
 
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