Rare NOS SunTour XC-Pro MD Crankarm. XC-Pro was Sun Tour's pro-level "cost no object" group and featured only the highest quality materials and finishes. Micro-Drive (MD) was a sea change in drivetrain setup when it was introduced and was quickly copied by Shimano, Ritchey and others.
Make: Suntour. Crank Length: 170 MM. Model: Superbe Pro. We are a non-profit collective (Madison Freewheel Bicycle Cooperative) in Madison, WI. A portion of the profits from every item supports charitable bicycle programs.