SRAM Rival 2x Chainring Kit - 48/35t 2x12-Speed 8-Bolt Direct Mount Black E1 Model-Reverb MM-ISEV is for a SRAM

MM-ISEV is for a SRAM MatchMaker shifter mounting to a Shimano I-SPEC EV brake

The locking mechanism is nearly twice as wide as the existing  NNN system

Stay comfortable with jersey fabric at the back of the legs for added ventilation and an adjustable elastic waist for a custom fit

Places foot inboard

Compatible with sensors (sold separately) for monitoring heart rate

SRAM Rival 2x Chainring Kit - 48/35t 2x12-Speed 8-Bolt Direct Mount Black E1 Model-Reverb MM-ISEV is for a SRAMSRAM Rival 2x Chainring Kit 48 35t 2x12 Speed 8 Bolt Direct Mount Black E1. Stiff strong chainrings form the backbone of SRAMs front shifting ever. Rival 2x chainrings are a light elegant one piece construction so none of your effort goes to waste. A 13 tooth delta on all chainring pairs ensures precise shifting for any setup as well as a less dramatic change in cadence during front shifts. One piece construction for faster smoother more secure