Cannondale Scalpel-Si Carbon 4 2017 Mountain Bike

What are the delivery costs?

We offer Free UK Mainland Delivery on all orders over £20. Products shipped to outlying UK regions are excluded from free shipping.

Standard delivery is normally 2 - 5 working days.

Please view our delivery page for full information on UK and international delivery costs.

Built for XXC.

The ultimate race bike for the rough and tumble realities of modern XC. It’s the lightest, stiffest XC dually on the planet, with radical new XC geometry to own the climbs, rule the descents and decimate the competition.

The lightest, stiffest, best climbing, best descending, all-around fastest XC race bike ever made. The new XC is gnarly. The new Scalpel-Si is gnarlier.

Key Features:

  • Insane Traction – Without Compromise – Proprietary Ai offset drivetrain delivers super short chainstays for climb-winning traction and agile handling, without sacrificing mud/tyre clearance or limiting you to single ring set-ups.
  • XC Agility Meets All-Mountain Stability – OutFront Steering Geometry gives you the best of both worlds: Slack and stable on hectic descents, yet quick and nimble everywhere else.
  • The Best XC Fork… Period – Unbelievably rigid and precise, Lefty out-corners, out-handlers and flat-out rides circles around its flexy XC competition. Its custom extra-long fork offsets (rake) make our OutFront Steering Geometry possible.
  • Explosive Stiffness – Just say no to energy-wasting flex. Scalpel-Si is the stiffest XC dually going, thanks to the evenly dished Ai rear wheel, super short chainstays, LockR locking axles and BallisTec Carbon frame construction.
  • Ultra Lightweight – System Integrated Cranks, Fork, Frame and Zero Pivot stays all add up to not much… weight. Scalpel-Si is the lightest XC dually on the market.
  • Rider Position – Pure Modern XC. Low flat back, centered weight distribution.
  • Rider Profile – World Cup XC racers, marathon racers and anyone else with dreams of fast-paced XC glory.


Frame Scalpel-Si, 100mm, BallisTec Carbon, Zero Pivot seatstay, Carbon Link, PF30, 1.5 Si head tube, Ai Offset
Forks Lefty 2.0, 100mm, XLR Isolated Damper Technology with XC+ tune and XLoc remote, 55mm offset (29), 50mm offset (27.5)
Rear_Shock RockShox Monarch RL, 100mm
Headset Cannondale HeadShok Si
Handlebars Cannondale C2 Butted AL2014 Alloy, 760mm
Stem Cannondale C1, 6061 Alloy, 1.5", 31.8, -5 deg.
Shifters 22 Speed Shimano XT, 2x11
Front_Mech Shimano XT, side swing
Rear_Mech Shimano XT Shadow Plus, 11-speed
Chainset Cannondale Si, BB30, 36/26 CNC Rings
Bottom_Bracket Cannondale Alloy PressFit30
Chain Shimano HG601, 11-speed
Front_Brake Shimano XT hydraulic disc, 160/160mm
Rear_Brake Shimano XT hydraulic disc, 160/160mm
Rims Stans ZTR Rapid 25, 32 hole, tubeless ready
Front_Hub Lefty 60 front, Formula DHT-142x12, (Ai Offset dish - Rear)
Rear_Hub Lefty 60 front, Formula DHT-142x12, (Ai Offset dish - Rear)
Spokes DT Swiss Competition (Ai Offset dish - Rear)
Tyres Schwalbe Racing Ralph Performance, 29x2.25", folding, tubeless ready Front
Schwalbe Racing Ralph Performance, 29x2.25", folding, tubeless ready Rear
Seatpost Cannondale C3, Micro Adjust, 6061 Alloy, 31.6x350mm (XS,S,M) 400mm (L,X)
Pedals Not Included

Occasionally, without notice, manufacturers change product design and/or specifications.