Ultra 900 Carbon Frame Road Bike
road cycling races and frequent training sessions on flats or in the mountains.
New B'Twin Ultra Evo Dynamic carbon frame combined with Shimano 105 11-speed drive train. Frame UCI-certified for road cycling races.
Only one color available
The reliability of the Shimano 105 11-speed groupset. Mavic Aksium 17 C wheels.
B'Twin ULTRA Evo Dynamic frame / fork module.
Shimano 105 brakes with direct mount on the front calliper.