![First review: New Cervélo S5 Ultegra Di2 2023 – The greatest aero bike of all times? | GRAN FONDO Cycling Magazine First review: New Cervélo S5 Ultegra Di2 2023 – The greatest aero bike of all times? | GRAN FONDO Cycling Magazine](https://granfondo-cycling.com/wp-content/uploads/sites/3/2022/07/Cervelo-S5-2023-Review-018.jpg)
First review: New Cervélo S5 Ultegra Di2 2023 – The greatest aero bike of all times? | GRAN FONDO Cycling Magazine
![Di2 1st generation rear derailleur refuses to shift. It will however shift up and down the cog when resetting crash protection. There is a faint clicking sound in the derailleur after pressing Di2 1st generation rear derailleur refuses to shift. It will however shift up and down the cog when resetting crash protection. There is a faint clicking sound in the derailleur after pressing](https://preview.redd.it/t7ezyyfwc3c71.jpg?width=640&crop=smart&auto=webp&s=c4c9bed2c6da15ef304d4daeb3742fd43eb11702)
Di2 1st generation rear derailleur refuses to shift. It will however shift up and down the cog when resetting crash protection. There is a faint clicking sound in the derailleur after pressing
![Presenting the DURA-ACE Di2 9200 groupset – Shimano's new flagship groupset in review | GRAN FONDO Cycling Magazine Presenting the DURA-ACE Di2 9200 groupset – Shimano's new flagship groupset in review | GRAN FONDO Cycling Magazine](https://granfondo-cycling.com/wp-content/uploads/sites/3/2021/08/Shiman-Dura-Ace-Di2-2021-2022-News-Launch-Road-Bike-Review-Test-123-1140x760.jpg)