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2018 Cannondale Scalpel-Si Carbon 1

Original specifications: 29" wheels · geometry for 4 published sizes.

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At a glance

Model year
2018
Category
Mountain
Sizes
S (27.5"), M (29"), L (29"), XL (29")
Colors
Jet Black w/ Volt and Anthracite - Gloss (VLT)
Geometry
4 manufacturer sizes
In this record
23 specifications · archived image · geometry
Archive ID
900002560
Original buildCarbon · 29"

Manufacturer catalog

Published sizes and colors

4 sizes · 1 color

Manufacturer-published sizes and colors; availability and exact size/color pairings may vary by market or production run.

Published sizes

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

Published colors

Jet Black w/ Volt and Anthracite - Gloss (VLT)

Frameset

Frame ConstructionScalpel-Si, 100mm, BallisTec Hi-MOD Carbon, Zero Pivot seatstay, Carbon Link, PF30, 1.5 Si head tube, Ai Offset
Frame MaterialCarbon
ForkLefty 2.0 Carbon, 2Spring, 100mm, XLR Isolated Damper Technology with XC+ tune and XLoc Full Sprint remote, 55mm offset (29), 50mm offset (27.5)
Fork MaterialCarbon
Rear ShockRockShox Monarch XX, 100mm Travel, Remote

Drivetrain

ShiftersSRAM X01 Eagle, 12-speed
Rear DerailleurSRAM XX1 Eagle, Type 3 RBC, 12-speed
CranksetTruvativ Stylo Carbon Eagle, BB30, 34T, Ai Custom
Bottom BracketCannondale Alloy PressFit30
Rear CogsSRAM XG-1295 Eagle, 10-50, 12-speed
ChainSRAM Eagle 12-speed

Brakes

BrakesSRAM Level TLM, custom flat mount rear, Centerline Rotors 180/160mm

Cockpit & Contact Points

HeadsetCannondale HeadShok Si
HandlebarCannondale C1 flat, Carbon, 760mm
StemCannondale C1, 7075 Alloy, 31.8, -5°
SaddleFabric Scoop Shallow Elite
SeatpostCannondale C1 Full Carbon, 31.6x420mm

Wheels & Tires

HubsLefty 60 front, HollowGram by DT Swiss Rear, Star Ratchet, 142x12 , 28 hole (Ai Offset dish - Rear)
RimsHollowGram 23, Superlight Hi-Impact Carbon, Tubeless Ready, 28hole, 23mm inner
SpokesDT Swiss Aerolite (Ai Offset dish - Rear)
Front TireSchwalbe Rocket Ron EVO Snakeskin, 29x2.25”, folding, Tubeless Ready
Rear TireSchwalbe Rocket Ron EVO Snakeskin, 29x2.25”, folding, Tubeless Ready
Wheel Size29"

Geometry

4 sizes · 15 measurements

Frame measurements by size.

All geometry measurements4 sizes · 15 measurements
MeasurementS (27.5")M (29")L (29")XL (29")
Seat tube400 mm440 mm480 mm520 mm
Effective top tube570 mm599 mm624 mm648 mm
Head tube97 mm110 mm122 mm134 mm
Head-tube angle69.5°69.5°69.5°69.5°
Seat-tube angle73.5°73.5°73.5°73.5°
Chainstay / rear center425 mm435 mm435 mm435 mm
Wheelbase1079 mm1118 mm1144 mm1169 mm
Bottom-bracket drop20 mm38 mm38 mm38 mm
Bottom-bracket height333 mm334 mm334 mm334 mm
Reach407 mm424 mm445 mm466 mm
Stack550 mm592 mm604 mm615 mm
Standover height716 mm754 mm760 mm766 mm
Fork offset / rake50 mm55 mm55 mm55 mm
Front center653 mm685 mm711 mm735 mm
Trail75 mm77 mm77 mm77 mm

Measurements may vary by configuration, wheel size, or frame setting where noted in the published chart.

Gearing

Chainring ÷ rear sprocket

Lower ratios provide more mechanical advantage for climbing. Higher ratios turn the rear wheel farther with each crank revolution.

All published sizes34T · 10–50T · 12-speed
Lowest0.68:1 Highest3.40:1 Total range500%
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Parts & serviceability

Find replacement parts

Original specifications
Chain · Original
SRAM Eagle 12-speed
Cassette / rear cogs · Original
SRAM XG-1295 Eagle, 10-50, 12-speed
Front tire · Original
Schwalbe Rocket Ron EVO Snakeskin, 29x2.25”, folding, Tubeless Ready
Retailer offers · Affiliate links
Schwalbe Magic Mary Evolution Tubeless Tire - 29in Black, Addix Soft Snakeskin, 29x2.25in

Schwalbe Magic Mary Evolution Tubeless Tire - 29in Black, Addix Soft Snakeskin, 29x2.25in

29x2.25in

Replacement option · verify fit

More parts (5)
Saddle · Original
Fabric Scoop Shallow Elite
Rear derailleur · Original
SRAM XX1 Eagle, Type 3 RBC, 12-speed Search: SRAM XX1 Eagle, Type 3 RBC, 12-speed rear derailleur Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
Retailer offers · Affiliate links
Shifters · Original
SRAM X01 Eagle, 12-speed Search: SRAM X01 Eagle, 12-speed shifter Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
Seatpost · Original
Cannondale C1 Full Carbon, 31.6x420mm
Retailer offers · Affiliate links
Hubs · Original
Lefty 60 front, HollowGram by DT Swiss Rear, Star Ratchet, 142x12 , 28 hole (Ai Offset dish - Rear)

Based on the original build. Confirm the model, size and fit before ordering; installed parts may differ. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer purchases.

Bike-specific inspection checklist 23 checks based on 6 archived component groups Open checklistClose checklist
0 of 23 checked Progress stays in this browser for this bike.

This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.

Archived: 2018 Cannondale Scalpel-Si Carbon 1 · Mountain · Published sizes: S (27.5"), M (29"), L (29"), XL (29")

Archived: Frame: Scalpel-Si, 100mm, BallisTec Hi-MOD Carbon, Zero Pivot seatstay, Carbon Link, PF30, 1.5 Si head tube, Ai Offset · Fork: Lefty 2.0 Carbon, 2Spring, 100mm, XLR Isolated Damper Technology with XC+ tune and XLoc Full Sprint remote, 55mm offset (29), 50mm offset (27.5) · Carbon

Archived: Fork: Lefty 2.0 Carbon, 2Spring, 100mm, XLR Isolated Damper Technology with XC+ tune and XLoc Full Sprint remote, 55mm offset (29), 50mm offset (27.5) · Rear shock: RockShox Monarch XX, 100mm Travel, Remote

Archived: Shifters: SRAM X01 Eagle, 12-speed · Rear derailleur: SRAM XX1 Eagle, Type 3 RBC, 12-speed · Crankset: Truvativ Stylo Carbon Eagle, BB30, 34T, Ai Custom · Bottom bracket: Cannondale Alloy PressFit30 · Rear cogs: SRAM XG-1295 Eagle, 10-50, 12-speed · Chain: SRAM Eagle 12-speed

Archived: Brakes: SRAM Level TLM, custom flat mount rear, Centerline Rotors 180/160mm

Archived: Wheel size: 29" · Rims: HollowGram 23, Superlight Hi-Impact Carbon, Tubeless Ready, 28hole, 23mm inner · Hubs: Lefty 60 front, HollowGram by DT Swiss Rear, Star Ratchet, 142x12 , 28 hole (Ai Offset dish - Rear) · Front tire: Schwalbe Rocket Ron EVO Snakeskin, 29x2.25”, folding, Tubeless Ready · Rear tire: Schwalbe Rocket Ron EVO Snakeskin, 29x2.25”, folding, Tubeless Ready

Controls and contact points

Archived: Headset: Cannondale HeadShok Si · Handlebar: Cannondale C1 flat, Carbon, 760mm · Stem: Cannondale C1, 7075 Alloy, 31.8, -5° · Seatpost: Cannondale C1 Full Carbon, 31.6x420mm · Saddle: Fabric Scoop Shallow Elite

Before and during the test ride

Follow the full used-bike inspection order →

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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.

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