Description
Shimano STEPS EW SW310 Satellite System On Off Switch Black Model=ST 5 Flow Saddle Drivetrain Speeds 12 Weight 88 Drivetrain Speeds 12 Weight 88 Max Ring (teeth) 38 Front Derailleur Style Side Swing Front Derailleur Clamp E2 Direct Mount Double or Triple Double Front Der Shifter Compatibility Shimano Mountain Derailleur Capacity 12 Front Derailleur Cable Pull Side The result of CFD (computational fluid dynamics) testing the Propel sunglasses introduce the concept of aerodynamic gains to eyewear