Updated as reference 1375
Rim steel width 1.60 "(larger that the standard allows for more grip the tire)
hub since 2006
32 spokes reinforced
wheel axle diameter 15mm
inner centering of the brake disc = 76mm
the 4 disk fixing holes diameter= 100mm
inner sprocket diameter = 76mm
4 holes for sprocket = 92mm diameter
bearing D:35 mm, d: 15 mm, thickness 11mm
tire pressure minimum recommended 1.5 kg/cm2