The North Shore Billet 28t chainring is designed to be installed on the inner chainring position of a standard 104/64mm 4-bolt crankset and features a thin-thick tooth profile to hold onto the chain better.
Typically you would install a 1x chainring in the middle chainring position on a mountain triple crank for the best possible chainline, but you are limited to a 30t because of the overall diameter of the chainring. NSB takes this into account with their 28t 64mm chainring by building in an offset so that you get a proper 49mm chainline while mounting to the inner position. NSB Variable Tooth Chainrings can be run with 9/10/11 speed drivetrains, but work best with 10 or 11-speed chains.
Like all NSB products the Variable Tooth Chainrings are machined in Whistler, BC Canada from 7075 T6 Aluminum with laser etched graphics.
Offset for proper 1x chainline
Machined from 7075 T-6 Aluminum
Made in Canada
The 28t NSB Variable Tooth Chainring provides a lower gear range on 1x drivetrains while providing proper chainline.
Shimano/SRAM 10, Shimano/SRAM 11
Narrow-Wide Tooth Profile
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