AL7075 CNC machined chainring fixing bolts, specific kit suitable for DuraAce 9200 12s, DuraAce 9200-P 12, Ultegra FC-R8100 and FC-R8100-P cranksets.
Not compatible with different models (e.g. DuraAce 9100, Ultegra, 105...)
It contains 4 shaped females and 4 males standard length.
Made in Italy.

23g