Truvativ  HammerSchmidt AM Crankset

Hammerschmidt is the new Truvativ crankset that has the industry talking. It's single internal gear design offers the same range as a wide-range 2 ring crank and front derailleur, with none of the complexity. Stop missing shifts and quit wasting time cleaning a mucked-up drivetrain. It's like a double crank, front derailleur, and chain guide in one!

• Can only be installed on frames with ISCG or ISCG '05 chainguide tabs
• Can work with singlespeed, 7, 8, or 9 speed chains (match the chain type to your rear cluster)
• Shifts equally well under load as standing still, even while backpedaling!
  

You'll also need...

• Hammerschmidt BB is not included. Sold seperately.
• Requires a SRAM Hammerschmidt-specific front shifter. Sold seperately.