Thunder 70

Thunder 70

Frame sizes

Frame size (in)16.518.019.521.0
A/ Seat tube length (mm)419457495533
B/ Effective top tube length (mm)593606615623
C/ Seat tube angle (°)72,372,372,373
D/ Head tube angle (°)71717170
E/ Chainstay length (mm)450450450450
F/ Wheelbase (mm)1 07310881103
G/ Head tube length (mm)110120130140
BB Shell size (mm)BC 1.37*24 / 68
Head tube size (mm)IHS 1-1/8
Seat post diameter (mm)31.6
Seat clamp diameter (mm)34.9
Front derailleur diameter (mm)34.9

Frame size: from the middle of BB shell to the end of seat tube