Session chainring set for Shimano 12v Ultegra 8100 and Dura Ace 9200 crankset.
The session crowns were developed directly with the Ultegra 8100 crankset, bringing a modern and aerodynamic look, developed in CNC 7075 T6 aluminum with 6 indexing points machined directly into the crown body, lightening the weight and making gear changes faster and more precise.
Features:
Sizes: 55, 54, 42 and 40
Weight: 55 and 54 +/- 150 grams and 42 and 40 +/-45 grams
Compatible with Dura Ace and Ultegra 12v cranksets
They can be sold separately or in pairs.
Compatibility of 55 and 54 also with 39 and 36 chainrings
