NOS/NIB Stronglight BIS 80 & 99 Chainring: Factory Drilled - 36t - 86mm BCD
This factory drillium chainring has "BIS" attached to it's model name, indicating that it is drilled.
This chainring has a bolt circle diameter of 86mm, and came stock on Stronglight 99, Stronglight 100, and Stronglight 80 cranksets. It fits some SR triples as well.
New in original factory sealed bag
- BCD: 86mm