Replacement sprocket for newer ELFs that use the 'UpDrive' system (with NuVinci hub in the middle, not in the rear). Right side freewheel is connected with a chain to a sprocket mounted to the motor's disc brake holes. The motor in the UpDrive ELFs is mounted backwards from a conventional hub motor.
If you need a left side freewheel for an older model ELF, that has the NuVinci in the back, you'll want the ACS southpaw instead.
"Cold forged for high-torque strength
30 steps / 12º engagement
Nickel plated sprocket ring, fits 1/8" and 3/32" chains
Removable with standard 4-prong tool"
|Gears:||22T x 3/32"|
^ Above description was provided by the manufacturer: ACS