Chainrings for 144 mm bolt pattern cranks...

New! Blackspire Track chainrings - for 3/32" chains. blkspr8.jpg - 31.67 K
1/8 1/8" Chainrings. Clockwise, from the top: Dura-Ace Track (grey anodized, now discontinued); Dura-Ace Track (silver anodized, the current standard); Campagnolo Record Pista; Sugino 75 Track.
3/32" Chainrings. Clockwise, from the top left: Sugino Mighty (drilled) ; Sugino Mighty Victory (drilled, routed); Shimano Dura-Ace Track(grey anodized). 3/32

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