Alternator 2.0 is the latest iteration of Salsa’s adjustable dropout system.
0 Dropouts are a modular system consisting of replaceable dropout plates and fixing hardware.0 Dropout plates are compatible with frames featuring 142, 148, 177, or 197mm spacing Hardware kits (sold separately) must always be paired with the style of dropout plates being installed on the frame Allows for the rear axle location to be adjusted through a ~17mm range relative to the bottom bracket axle Note: This part number only includes a single Alternator 2.