Shimano Movimento Centrale Bsa BB-R9100 Creme per Fondello keeping the skin cool and

keeping the skin cool and dry

made of SL 121 fabric

Ultra-light frame inspired by Aethos technology to ensure extreme lightness in all conditions

Nuovo sviluppo anatomico senza zip per ridurre la resistenza all’aria e aumentare la velocità

Water-repellent 600D fabric: durable material that ensures protection and abrasion resistance

Shimano Movimento Centrale Bsa BB-R9100 Creme per Fondello keeping the skin cool andThe Shimano BB R9100 bottom bracket represents the mechanical excellence of the Dura Ace series, designed for cyclists who demand maximum performance and lightness. Thanks to the use of small, high precision ball bearings, this component drastically reduces rotational friction and overall weight compared to previous versions. The advanced sealing structure ensures superior protection against atmospheric agents, maintaining constant pedaling fluidity