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Moulton bicycles come in one frame size. This size fits the majority of riders and the low step-through allows the bike to be mounted with ease by both sexes. Below are the wheel size, seat tube and pillar dimensions - along with the respective inside leg-length guides - for the different Moulton models:

 
Wheel Size
Seat Tube
Seat Pillar
Inside Leg
 
Inches
mm
mm
Inches
SPEED
20
360
Dia.34.9 x 570 (in-line)
25-36"
JUBILEE
20
360
Dia.34.9 x 570 (layback)
25-36"
SST
20
450
Dia.31.6 x 450 (in-line)
27-36"
TSR
20
450
Dia.31.8 x 400 (layback)
27-35"
NS DOUBLE PYLON
20
495
Dia.27.2 x 350 (layback)
* 28-34.5"
NS SPEED
20
495
Dia.27.2 x 350 (in-line)
* 28-34.5"
NS MARATHON
20
360
Dia.34.9 x 570 (layback)
25-36"
AM GT
17
380
Dia.34.9 x 570 (in-line)
25-36"
AM 22
17
380
Dia.34.9 x 570 (layback)
25-36"
AM SPEED
17
480
Dia.27.2 x 350 (in-line)
27-34"
17
560
Dia.27.2 x 350 (in-line)
30-37"
EARL GREY (SE)
17
380
Dia.34.9 x 570 (layback)
25-36"
* 400mm seat pillar can be supplied to give maximum 36.5" inside leg

 

© 2017 The Moulton Bicycle Company