material

material mild steel AISI 1045, or spheroidal graphite cast iron GT40-15(no big holes in the material and specially in the central hole).

dimensions

dia.185* thick49.5mm
Weight: 6.043kgs

surface treatment

flash Zinc plating trivalent, thickness 0.004-0.007mm white color

test

static balancing test, 2000rpm, according to standard ISO 2.5

application

for all kinds of home body building bike(a kind of fitness eqipment),which is popular in home, sports or gymnasium.