Assorted Chainrings. We have a collection of various hard to find and discontinued chainrings that you may have been looking for to revive that old crankset. It is important to know the BCD, the number of teeth and the number of bolts your chainring has, see illustration and compare to chart below:
Bolt Circle Diameter (BCD) |
Actual Center to Center Measurement |
|---|---|
5 bolt chainrings |
|
56mm |
32.9mm |
58mm |
34.3mm |
94mm |
55.4mm |
74mm |
43.5mm |
110mm |
64.7mm |
130mm |
76.4mm |
135mm |
76.5mm |
144mm |
84.6mm |
4 Bolt Chainrings |
|
58mm |
41mm |
64mm |
45.3mm |
68mm |
48.1mm |
104mm |
73.6mm |
112mm |
79.2mm |
Black Spire - Sticker Pax. Includes "Made in Canada, "North Shore Approved" and "Just for the fun of it!" stickers. Made in Canada.
Black Spire - Super Pro Series Rings. Engineered with modified shifter gates and profiles to allow hassle free shifting. 8 or 9 speed compatible. Thicker middle ring helps prevent chainslip when shifting. Steel shifting pins enhance shifting to bigger rings. CNC machined from 7075-T6 alloy. 104mm BDC. Made in Canada.
Black Spire - Chuck Ring. Stainless steel laser etched granny ring. 64mm BDC. Made in Canada.
$21.95
Black Spire - Ring God. CNC cut from 6061-T6 aluminum, Blackspire RING GODS are designed for and proven on the North Shore! They mount in place of the large outer ring to cover middle and granny. 32-34T Colour : Anodized Black. Made in Canada.
$29.95