SRAM XX1 Type 2.1 1x11 Speed Rear Derailleur Dropship One of the early tests

One of the early tests to determine how well the foam would 'rebound' back into shape was to repeatedly strike it with a hammer on a concrete floor

76BCD chainring

Fit/Integration

Preshaped low profile knee comfort pads

Ventilation: There are 15 or so nice big vents to keep the cool air coming in and the hot air going out

SRAM XX1 Type 2.1 1x11 Speed Rear Derailleur Dropship One of the early testsWith its "horizontal parallelogram" design and pulley offset, X HORIZON keeps the chain gap constant across all 11 gears, providing fast, precise shifts. By limiting all movement to the horizontal axis, this design is faster, reduces shift force and eliminates ghost shifting. ROLLER BEARING CLUTCH technology reduces bounce and chain slap. CAGE LOCK technology makes wheel removal and installation easier than ever before. Paired with the XX1 shifter,