Outer chainring bolts
are alloy to save weight. Inners are stainless steel for extra
strength where it's needed. Outers come anodised in red/black/blue/silver
to match your colour scheme, inners are silver only. Sold
in packs of 5 inners or 5 outers.
Weight: 9g for 5 outers (10 pieces)
12g for 5 inners (5 piece)
