Costco Members: 27.5" Northrock XC27 Aluminum Mountain Bike

Hand Built 6061 All-aluminum Alloy Press Formed Frame is Light and Responsive
Tektro Mechanical Disc Brakes for Control Regardless of Conditions
Shimano ALTUS 21-speed Drivetrain
Alloy Double Wall Rims: Lightweight and Strong
Internal Cable Routing in the Frame for a Sleek Look and Enhanced Performance