SRAM Rival Crankset - 170mm 12-Speed 46/33t 8-Bolt Direct Mount DUB Spindle BLK E1 Description-Compression Knob Kit (Non-Remote) There are five different models

There are five different models which allow different volumes of airflow

It is most commonly used on dual suspension frames where the water bottle is difficult to access because of interference with the top tube or shock

materials may vary slightly by colorway

Includes "two AAA batteries

High end nylon composite body

SRAM Rival Crankset - 170mm 12-Speed 46/33t 8-Bolt Direct Mount DUB Spindle BLK E1 Description-Compression Knob Kit (Non-Remote) There are five different modelsSRAM Rival Crankset 170mm 12 Speed 46 33t 8 Bolt Direct Mount DUB Spindle Black E1. SRAMs most advanced aluminum road crankset is their most stunning. Careful engineering has resulted in crankarms that optimize stiffness to weight ratio with material only where its needed. Integrated chainrings deliver flawless shifting in ranges that fit your needs with the whole package coming in over 50 grams lighter than the previous generation. Modern aluminum