Dérailleur Arrière SHIMANO GRX RX820 12V New With its large reflective prints

With its large reflective prints on the chest

What is the difference with the "TwinHead" model

It also features the unique system allowing grease to be injected using the CHRIS KING grease pump

to perfectly adapt to every rider position

The CASTELLI ENDURANCE W Women's Short Sleeve Jersey is designed for committed cyclists seeking elegance and performance

Dérailleur Arrière SHIMANO GRX RX820 12V New With its large reflective printsThe SHIMANO GRX RX820 12V is designed to deliver smooth, quiet and reliable gear shifts on gravel courses and mixed terrain. Compatible with 12 speed 11 34T and 11 36T cassettes, it offers a wide range of gearing to maintain an optimal cadence in all conditions. Equipped with SHIMANO SHADOW RD+ technology, this derailleur features an adjustable chain stabiliser that reduces chain slap and minimises the risk of derailment on rough terrain. Its