auraslip
10 MW
- Joined
- Mar 5, 2010
- Messages
- 3,535
As in a wheel between the standard 24" wheel, and the 20" wheel. For those of us trying to cram as many batteries as possible in frames that are often to large for the rider, this size could be very useful. In my case 24" wheels leave me tiptoing at stop lights, but 20" wheels would risk pedal strikes on sharp turns.
http://www.sheldonbrown.com/rim-sizing.html
The problem is the inconsistency in the "Traditional Designation". I move from here on out we go by the ISO Bead Seat Diameter.
The next question is sourcing suitable tires and rims for high speed ebike applications in the 451mm size. Of course they don't exist, but since I saw 22" tubes and spent an hour searching for 22" bike rims, I thought I'd save others the time.
Traditional Designation______ISO Bead Seat Diameter
26 x 1.00- x 2.125_____________559 mm Most Mountain bikes, cruisers
24 x 1.5- x 2.125______________507 mm Juvenile mountain bikes, BMX Cruisers
20 x 1 1/8; x 1 1/4; x 1 3/8____ 451 mm Juvenile lightweights, BMX for light riders, some recumbents
20 x 1.5- x 2.125______________406 mm Most BMX, juvenile, folders, trailers, some recumbents
http://www.sheldonbrown.com/rim-sizing.html
The problem is the inconsistency in the "Traditional Designation". I move from here on out we go by the ISO Bead Seat Diameter.
The next question is sourcing suitable tires and rims for high speed ebike applications in the 451mm size. Of course they don't exist, but since I saw 22" tubes and spent an hour searching for 22" bike rims, I thought I'd save others the time.