Bicycle comparison

Specification	2019 Cannondale Scalpel-Si Carbon 4	2018 Cannondale Scalpel-Si Carbon 4
Overview
Model year	2019	2018
Brand	Cannondale	Cannondale
Model	Scalpel-Si Carbon 4	Scalpel-Si Carbon 4
Bicycle type	Mountain	Mountain
Archive ID	900002753	900002477
Colors	Black Pearl w/ Graphite and Charcoal - Gloss (BPL); Acid Green w/ Graphite and Vulcan - Gloss (AGR)	Acid Green w/ Anthracite and Jet Black - Gloss (AGR)
Sizes	S, M, L, XL	S (27.5"), M (29"), L (29"), XL (29")
Frameset
Frame construction	Scalpel-Si, 100mm, BallisTec Carbon, Zero Pivot seatstay, Carbon Link, PF30, 1.5 Si head tube, Ai Offset	Scalpel-Si, 100mm, BallisTec Carbon, Zero Pivot seatstay, Carbon Link, PF30, 1.5 Si head tube, Ai Offset
Frame material	Carbon	Carbon
Fork	ALL-NEW Lefty Ocho, 27.5/29”, 100mm, Chamber Damper with cable lockout, OppO Spring System, tapered steerer, 50/55mm offset	Lefty 2.0 Alloy OPI, 2Spring, 100mm, XLR Isolated Damper Technology with XC+ tune and XLoc remote, 55mm offset (29), 50mm offset (27.5)
Fork material	—	Aluminum
Rear shock	RockShox Monarch RL, 100mm	RockShox Monarch RL, 100mm
Drivetrain
Shifters	SRAM NX Eagle, 12-speed	Shimano XT, 2x11
Front derailleur	—	Shimano XT, side swing
Rear derailleur	SRAM GX Eagle	Shimano XT Shadow Plus, 11-speed
Crankset	Truvativ Stylo 6K, 34T, Ai Custom	Cannondale Si, BB30, 36/26 CNC Rings
Bottom bracket	Cannondale Alloy PressFit30	Cannondale Alloy PressFit30
Rear cogs	SRAM PG-1230, NX Eagle, 10-50, 12-speed	Shimano XT, 11-42, 11-speed
Chain	SRAM NX Eagle, 12-speed	Shimano HG601, 11-speed
Pedals	Not Included	N/A
Brakes
Brakes	SRAM Level TL hydro disc, 180/160mm Centerline rotors	Shimano XT hydro disc, 160/160mm
Cockpit & contact points
Headset	Cannondale HeadShok Si	Cannondale HeadShok Si
Handlebar	Cannondale C2 Flat, butted 2014 Alloy, 8° sweep, 760mm	Cannondale C2 flat, Butted AL2014 Alloy, 760mm
Stem	Cannondale C3, 3D Forged 6061 Alloy, 1-1/8”, 31.8, 7°	Cannondale C1, 6061 Alloy, 1.5”, 31.8, -5°
Saddle	Fabric Scoop Flat Elite, cro-mo rails	Prologo Zero II STN
Seatpost	Cannondale C2, 7075 Alloy, 31.6 x 400mm	Cannondale C3, Micro Adjust, 6061 Alloy, 31.6x350mm (XS,S,M) 400mm (L,X)
Wheels & tires
Hubs	Lefty 60 front, Formula 12x142 rear w/ HG driver	Lefty 60 front, Formula DHT-142x12, (Ai Offset dish - Rear)
Rims	Stan’s NoTubes Crest S1, 28h, tubeless ready	Stan’s NoTubes Crest S1, 32 hole, tubeless ready
Spokes	DT Swiss Competition (Ai Offset dish - rear)	DT Swiss Competition (Ai Offset dish - Rear)
Front tire	Schwalbe Racing Ray Performance 27.5/29 x 2.25” front, Racing Ralph Performance 2.25” rear, Addix compound, tubeless ready	Schwalbe Racing Ralph Performance, 29x2.25”, folding
Rear tire	Schwalbe Racing Ray Performance 27.5/29 x 2.25” front, Racing Ralph Performance 2.25” rear, Addix compound, tubeless ready	Schwalbe Racing Ralph Performance, 29x2.25”, folding
Wheel size	29"	29"

Specification

2019 Cannondale Scalpel-Si Carbon 4

2018 Cannondale Scalpel-Si Carbon 4

Overview

Model year

2019

2018

Brand

Cannondale

Model

Scalpel-Si Carbon 4

Bicycle type

Mountain

Archive ID

900002753

900002477

Colors

Black Pearl w/ Graphite and Charcoal - Gloss (BPL); Acid Green w/ Graphite and Vulcan - Gloss (AGR)

Acid Green w/ Anthracite and Jet Black - Gloss (AGR)

Sizes

S, M, L, XL

S (27.5"), M (29"), L (29"), XL (29")

Frameset

Frame construction

Scalpel-Si, 100mm, BallisTec Carbon, Zero Pivot seatstay, Carbon Link, PF30, 1.5 Si head tube, Ai Offset

Frame material

Carbon

Fork

ALL-NEW Lefty Ocho, 27.5/29”, 100mm, Chamber Damper with cable lockout, OppO Spring System, tapered steerer, 50/55mm offset

Lefty 2.0 Alloy OPI, 2Spring, 100mm, XLR Isolated Damper Technology with XC+ tune and XLoc remote, 55mm offset (29), 50mm offset (27.5)

Fork material

—

Aluminum

Rear shock

RockShox Monarch RL, 100mm

Drivetrain

Shifters

SRAM NX Eagle, 12-speed

Shimano XT, 2x11

Front derailleur

—

Shimano XT, side swing

Rear derailleur

SRAM GX Eagle

Shimano XT Shadow Plus, 11-speed

Crankset

Truvativ Stylo 6K, 34T, Ai Custom

Cannondale Si, BB30, 36/26 CNC Rings

Bottom bracket

Cannondale Alloy PressFit30

Rear cogs

SRAM PG-1230, NX Eagle, 10-50, 12-speed

Shimano XT, 11-42, 11-speed

Chain

SRAM NX Eagle, 12-speed

Shimano HG601, 11-speed

Pedals

Not Included

N/A

Brakes

SRAM Level TL hydro disc, 180/160mm Centerline rotors

Shimano XT hydro disc, 160/160mm

Cockpit & contact points

Headset

Cannondale HeadShok Si

Handlebar

Cannondale C2 Flat, butted 2014 Alloy, 8° sweep, 760mm

Cannondale C2 flat, Butted AL2014 Alloy, 760mm

Stem

Cannondale C3, 3D Forged 6061 Alloy, 1-1/8”, 31.8, 7°

Cannondale C1, 6061 Alloy, 1.5”, 31.8, -5°

Saddle

Fabric Scoop Flat Elite, cro-mo rails

Prologo Zero II STN

Seatpost

Cannondale C2, 7075 Alloy, 31.6 x 400mm

Cannondale C3, Micro Adjust, 6061 Alloy, 31.6x350mm (XS,S,M) 400mm (L,X)

Wheels & tires

Hubs

Lefty 60 front, Formula 12x142 rear w/ HG driver

Lefty 60 front, Formula DHT-142x12, (Ai Offset dish - Rear)

Rims

Stan’s NoTubes Crest S1, 28h, tubeless ready

Stan’s NoTubes Crest S1, 32 hole, tubeless ready

Spokes

DT Swiss Competition (Ai Offset dish - rear)

DT Swiss Competition (Ai Offset dish - Rear)

Front tire

Schwalbe Racing Ray Performance 27.5/29 x 2.25” front, Racing Ralph Performance 2.25” rear, Addix compound, tubeless ready

Schwalbe Racing Ralph Performance, 29x2.25”, folding

Rear tire

Schwalbe Racing Ray Performance 27.5/29 x 2.25” front, Racing Ralph Performance 2.25” rear, Addix compound, tubeless ready

Schwalbe Racing Ralph Performance, 29x2.25”, folding

Wheel size

29"

Geometry comparison

One selected size or frame position per bicycle, matching the comparison dropdown choices used when Print / PDF was opened.

Measurement	2019 Cannondale Scalpel-Si Carbon 4	2018 Cannondale Scalpel-Si Carbon 4
Selected size / position	M (29“)	M (29")
Reach	424 mm	424 mm
Stack	592 mm	592 mm
Effective top tube	599 mm	599 mm
Head-tube angle	69.5°	69.5°
Seat-tube angle	73.5°	73.5°
Seat tube	440 mm	440 mm
Head tube	110 mm	110 mm
Chainstay / rear center	435 mm	435 mm
Wheelbase	1118 mm	1118 mm
Bottom-bracket drop	38 mm	38 mm
Bottom-bracket height	334 mm	334 mm
Standover height	754 mm	754 mm
Fork offset / rake	55 mm	55 mm
Front center	685 mm	685 mm
Trail	77 mm	77 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on November 7, 2026.