absoluteBLACK Premium Oval chainrings for FSA ABS (asymmetric bolt spacing) cranks like Gossamer, SL-K, K-Force. This model fits all 4 and 5 bolt design cranks. 4&5 bolt cranks are identical except the one hidden bolt behind the crank arm in 5 bolt design which is not needed. These are the finest FSA-compatible chainrings on the market in terms of shifting, stiffness, smoothness of pedaling, and manufacturing quality. 10/11/12spd compatible. Di2 Compatible. Made in EU
|Bolts|| For SL-K - use original FSA Bolt Covers and bolts
|Material And Finish||CNC machined 7075 Txxx Aluminum. Long-lasting construction. Type II anodizing
Product is good very setisfied service and good customer care ..