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Origin8 Alloy Classic Chainrings - 144 BCD/5-Bolt

Origin8 Alloy Classic Chainrings - 144 BCD/5-Bolt
$40.80 - $54.49
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Origin-8's Alloy Classic Chainrings are CNC-machined in the USA out of tough, light and durable 6061-T6 aluminum and are compatible with road, fixie and track drivetrain components. They have an attractive and corrosion-resistant silver anodized finish.

This chainring is available in 2 widths, 3/32- and 1/8-inch (thinner and thicker, respectively). You need to get the width that matches the chainring and chain on your bicycle (chains are designated as 3/32- and 1/8-inch, too). 3/32-inch is compatible with most bicycles with multiple gears and derailleurs. It's also used on many fixies, though not exclusively, so be sure to measure your existing chainring. Because there are no derailleurs and because the chain and chainring are under the greatest stress when riders race on a track, the 1/8-inch chainring and chain is used on most track bikes (and some fixies). Please ask if you're not sure which model is correct and we'll advise you.

Part Numbers

Option UPC MPN Store SKU
42T / 1/8-inch 072774223510 22351
42T / 3/32-inch 072774207855 20785
44T / 1/8-inch 072774207879 20787
46T / 1/8-inch 072774207886 20788
47T / 1/8-inch 072774207893 20789 210000014873
48T / 1/8-inch 072774207909 20790 210000014874
49T / 1/8-inch 072774207916 20791
50T / 1/8-inch 072774207923 20792
51T / 1/8-inch 072774207930 20793
52T / 1/8-inch 072774207947 20794 210000003848
52T / 3/32-inch 072774207862 20786
53T / 1/8-inch 072774207954 20795