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110mm Bolt Circle Diameter chainrings

110 Bolt Circle Diameter (BCD) chainrings on this page: White Industries 54-tooth

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Bolt Circle Diameter is the diameter of the circle formed by the centers of the chainring fixing bolts. With 4-bolt cranksets, this is easy to measure. 5-bolt cranks are more difficult.

Many makers have produced cranks and rings using a 110mm BCD, including Campagnolo for its compact cranksets, Sugino, SR FSA, Surly, White Industries & Shimano.

If you are unsure about what size chainring you need, Wolf Tooth Components has an excellent guide to measuring your rings.


White Industries 110 BCD x 54-tooth chainring. New, $100.00

Part# 61177

White Industries 54-tooth ring

Made in the USA

White Industries

The same ring flipped over. Note the pins to lift the chain for better shifts.