Synapse Carbon 4

Road Reimagined

Go long, go short, go fast. This is WorldTour performance for real world rides.

Model Description

Wireless brains meet all-road brawn. Synapse Carbon 4 runs Shimano 105 Di2 for a shifting experience that feels straight off the pro tour, minus the bank loan. The frame delivers that signature Synapse ride—quietly fast, endlessly composed—and plays nice with wide tires, fenders, and long days. Call it the sweet spot between Sunday speed and weekday practicality.

What it’s for

Comfortable high-performance road riding, long distance missions, fast group rides

Frameset

• Frame: Synapse Carbon, Proportional Response construction, integrated cable routing, downtube Stashport, 12×142 thru-axle, UDH, BSA 68mm threaded BB, SmartSense Gen 2.0 compatible.
• Fork: Synapse Carbon, 12x100mm thru-axle, internal routing, 1-1/8″ to 1-1/5″ Delta steerer, 55mm offset.
• Headset: Integrated, 1-1/8″ – 1-1/2″.

Drivetrain (Shimano 105 Di2, 12-Speed)

• Rear Derailleur: Shimano 105 Di2 7150
• Front Derailleur: Shimano 105 Di2 7150, braze-on
• Shifters: Shimano 105 Di2 R7170, wireless
• Crank: Shimano 105 7100, 50/34 (Compact)
• Rear Cogs: Shimano 105 7100, 11-34
• Chain: Shimano 105 7100
• Bottom Bracket: Shimano BSA 68

Wheels & Tires

• Rims: DT Swiss R470 DB, 28h
• Hubs: Shimano RS470 Centerlock (12x100mm Front / 12x142mm Rear)
• Tires: Vittoria Rubino Pro IV, 700x32c
• Spokes: Stainless Steel, 14g

Brakes

• Brakes: Shimano 105 7170 hydraulic disc
• Rotors: RT70, 160mm (Front & Rear)

Components

• Handlebar: Vision Trimax Aero Alloy
• Stem: Cannondale C1 Conceal, Alloy, 31.8, -6°
• Saddle: Fizik Vento Argo X5, 140mm
• Seatpost: Cannondale C1 Aero 27 Carbon, 330mm
• Grips: Cannondale Bar Tape, 3.5mm