Shimano GRX RD-RX400 Shadow+ 10 Speed Rear Derailleur - Rear Derailleur - 10 Speed - Black - Mid Cage - 36T Max YGroup_7959053140013 they are comfortable enough to

they are comfortable enough to ride in all day thanks to the anatomical shape and pre-curved fit

Sealed Bearing Pulleys

Pros: A great sized light that offers some impressive run times

it will firstly penetrate into your chain and drive out any water

It's also BNS compatible when used with X and A-Straps

Shimano GRX RD-RX400 Shadow+ 10 Speed Rear Derailleur - Rear Derailleur - 10 Speed - Black - Mid Cage - 36T Max YGroup_7959053140013 they are comfortable enough toWith an integrated chain stabilizer mechanism, the SHIMANO GRX derailleur provides a quieter experience and shifting security and precision on mixed terrain. For rides on smooth surfaces, the derailleur features and ON OFF switch for the chain tensioner.