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ISIS drive
7075AL
crank arms
Fully
precision cnc machined 7075AL chainrings,
ramped170,172.5,175mm lengths
52/39T
and 53/39T chainrings with spider bcd 130mm
BB
Width:68 or 70 mm
Black Anodized
7075al
chain rings bolts
520g
with chain rings
Patented double hollow hole design
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