Alpenchallenge AC01 IGH Alfine 8(2017)

The BMC Alpenchallenge AC01 IGH Alfine 8 is a versatile urban and fitness bicycle designed for practical everyday riding, commuting, and recreational cycling. It combines BMC’s lightweight Al-13 Premium Triple-Butted Hydroformed Aluminum frame with an integrated internal gear hub drivetrain, hydraulic disc brakes, and dependable components from Shimano, Gates, DT Swiss, and Continental.

The bike features an Alpenchallenge AC01 IGH frame constructed from Al-13 Premium Triple-Butted Hydroformed Aluminum, paired with an Al-13 Premium Triple-Butted Hydroformed Aluminum fork. This frame and fork combination provides a clean, modern platform suited to city riding and everyday cycling. The cockpit uses a BMC LSB 02 handlebar with a BMC LSM 02 stem, while the seating setup includes a BMC LSP 02 seatpost and Selle Royal Sirio saddle for a practical and comfortable riding position.

The drivetrain is built around a 1 × 8-speed configuration using the Shimano Alfine 8 Rapidfire Plus shifter and an Alfine 8 internal gear hub at the rear. Instead of a conventional chain-driven setup, the bike uses a Gates CenterTrack CDN-CT belt system, featuring a 55T crankset and 24T Gates CDN-CT SureFit rear sprocket. The Gates CDN-CT system is designed to provide a clean and low-maintenance drivetrain solution for everyday cycling.

For stopping power, the Alpenchallenge AC01 IGH uses Shimano M506 hydraulic brake components with RT54 rotors, measuring 160 mm front and rear. The wheel system features DT Swiss R522D rims, with a Shimano M4050 front hub and Alfine 8 rear hub.

The bike is equipped with Continental Sport Contact II 28 mm tires, providing a practical tire setup for urban roads, commuting, fitness riding, and general everyday use.

Key Specifications

• Model: Alpenchallenge AC01 IGH Alfine 8
• Frame: Alpenchallenge AC01 IGH, Al-13 Premium Triple-Butted Hydroformed Aluminum
• Fork: Al-13 Premium Triple-Butted Hydroformed Aluminum
• Handlebar: BMC LSB 02
• Stem: BMC LSM 02
• Seatpost: BMC LSP 02
• Saddle: Selle Royal Sirio
• Drivetrain: 1 × 8
• Shifter: Shimano Alfine 8 Rapidfire Plus
• Rear Hub: Alfine 8
• Crankset: Gates CenterTrack CDN-CT, 55T
• Rear Sprocket: Gates CDN-CT SureFit, 24T
• Belt: Gates CDN-CT, 115
• Brakes: Shimano M506/M506
• Rotors: RT54, 160/160 mm
• Rims: DT Swiss R522D
• Front Hub: Shimano M4050
• Tires: Continental Sport Contact II, 28 mm

The Alpenchallenge AC01 IGH Alfine 8 offers a clean and practical combination of an aluminum frame, internal hub gearing, Gates belt drive, hydraulic disc brakes, and reliable road-oriented wheels and tires, making it well suited to riders looking for a functional bicycle for everyday transportation and fitness-focused riding.