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The Cannondale Scalpel-Si 5 is Cannondale’s flagship aluminum cross-country bike. This full-suspension bike is lightweight, extremely efficient, and very versatile. It is great for tackling all the challenges of the trail. The Scalpel-Si strikes the perfect balance of cross-country speed with all-mountain or endurance stability. No sacrifices need to be made in any area aboard this full-suspension machine. With brilliant traction and responsive handling, you will never have to slow down on your Scalpel-Si. Anyone looking to get into serious cross-country riding can get great value out of the Cannondale Scalpel-Si 5.

Made with Cannondale’s SmartForm C1 Premium Construction, this frame comes in lighter than some carbon frames. The C1 Premium Alloy that makes this frame very light and durable for an excellent price. With the world-class engineered frame, you can count on amazing handling for great cornering and confident descending to go along with its high speed and lightweight nature. The Scalpel-Si 5 frame is as good as it gets for aluminum performance on the trails.

Modern cross-country geometry keeps the Scalpel-Si rider comfortably in position to hit high speeds on the trail. It features a low flat back to create a more centered weight distribution. Short chainstays are utilized for extra traction and agility. A slack head angle and OutFront steering technology adds to that speed and provides extra stability. Cannondale’s signature Lefty Ocho fork is smooth and precise while cutting down on weight and allowing for extra tire clearance. Cannondale refers to it as “the best XC fork” on the market. It adds to the smooth, fast, and precise ride you already expect from a Scalpel-Si.

Cannondale’s Scalpel-Si Carbon 5 Scalpe-Si gives you an unbeatable combination of performance and affordability. This version is equipped with a SRAM Eagle 12-speed groupset for some of the smoothest and highest performing mechanical shifting on the market. It also utilizes SRAM hydraulic disc brakes which provide modulated stopping in all conditions as well as excellent heat dissipation. Your entry into reaching your fullest potential on the trails starts with the Cannondale Scalpel-Si 5.  


  • Frame: Scalpel-Si, 100mm, SmartForm C1 Alloy, Zero Pivot seatstay, Carbon Link, PF30, 1.5 Si head tube, Ai Offset
  • Fork: Lefty Ocho 27.5/29”, 100mm, Chamber Damper with cable lockout, OppO Spring System, tapered steerer, 50/55mm offset
  • Headset: Cannondale HeadShok Si
  • Seatpost: Cannondale C3 6061 Alloy, 31.6 x 400mm


  • Bottom Bracket Cannondale BB30
  • Brake Calipers Shimano MT500 Hydro Disc
  • Brake Levers Shimano MT500 Hydro Disc
  • Cassette SRAM PG-1230, NX Eagle, 11-50, 12-Speed
  • Chain SRAM NX Eagle, 12-Speed
  • Crankset Truvativ Stylo 6K, 34T, Ai Custom
  • Fork Lefty Ocho, 27.5/29", 100mm, Chamber Damper With Cable Lockout, OppO Spring System, Tapered Steerer, 50/55mm Offset
  • Grips Cannondale Locking Grips
  • Handlebar Cannondale C3 Flat, 6061 Double-Butted Alloy, 8-Degree Sweep, 760mm
  • Headset Cannondale HeadShok Si
  • Pedals Not Included
  • Rear Derailleur SRAM NX Eagle
  • Rear Suspension RockShox Monarch RL, 100mm
  • Rotors Shimano MT500 Hydro Disc, 180/160mm RT56 Rotors
  • Saddle Fabric Scoop Shallow Sport, Steel Rails
  • Seatpost Cannondale C3, 6061 Alloy, 31.6 X 400mm
  • Shifters SRAM NX Eagle, 12-Speed
  • Stem Cannondale C3, 3D Forged 6061 Alloy, 1-1/8", 31.8, 7-Degree
  • Tires Schwalbe Racing Ray Performance 27.5/29 X 2.25" Front, Racing Ralph Performance 2.25" Rear, Addix Compound, Tubeless Ready
  • Wheel - Front WTB STX I23 TCS Rims / Lefty 60 Hub
  • Wheel - Rear WTB STX I23 TCS Rims Formula Hub
*Specifications are subject to change.


Bike Geometry
SizeSeat Tube (c-c)Seat Tube (c-t)Top Tube LengthHead Tube LengthChain Stay LengthSeat Tube AngleHead Tube AngleStand Over HeightWheel SizeStackReach
S 400 - 570 97 425 73.5 69.5 716 - 550 407
M 440 - 599 110 435 73.5 69.5 754 - 592 424
L 480 - 624 122 - 73.5 69.5 760 - 604 445
XL 520 - 648 134 - 73.5 69.5 766 - 615 466

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