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2018 Cannondale F-Si Carbon 5

Original specifications: 27.5" 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
Acid Red w/ Jet Black - Gloss (ARD)
Geometry
4 manufacturer sizes
In this record
21 specifications · archived image · geometry
Archive ID
900002664
Original buildCarbon · 27.5"

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

Acid Red w/ Jet Black - Gloss (ARD)

Frameset

Frame ConstructionF-Si, BallisTec Carbon, SPEED SAVE, PF30A, 1.5 Si Head Tube, Ai Offset, 27.5” (S), 29” (M-XL)
Frame MaterialCarbon
ForkRockShox Reba RL, 100mm, Solo Air, Tapered Steerer, Maxle Lite, 51mm offset

Drivetrain

ShiftersShimano SLX , 11-speed
Rear DerailleurShimano XT, 11-speed Shadow Plus
CranksetCannondale Si, BB30 w/ Ai SpideRing, X-Sync®, 32t
Bottom BracketCannondale Alloy PressFit30
Rear CogsSunRace, 11-46, 11-speed
ChainKMC X11, 11-speed

Brakes

BrakesShimano Deore MT-500 hydro disc, 180/160mm (S-160/160mm)

Cockpit & Contact Points

HeadsetCannondale HeadShok Si
HandlebarCannondale C3 flat, 6061 double-butted Alloy, 760mm
StemCannondale C3, 6061 Alloy, 1.5”, 31.8, -5°.
SaddleCannondale Stage 3
SeatpostCannondale C3, 6061 alloy, 27.2x350mm (S,M) 400mm (L,X)

Wheels & Tires

HubsFormula DC51 front, Formula DC-1422 Ai Offset dish - Rear
RimsWTB STP i19 Tubeless Ready
SpokesDT Swiss Competition (Ai Offset dish - Rear)
Front TireSchwalbe Racing Ralph Performance 29/27.5x2.25”
Rear TireSchwalbe Racing Ralph Performance 29/27.5x2.25”
Wheel Size27.5"

Geometry

4 sizes · 16 measurements

Frame measurements by size.

All geometry measurements4 sizes · 16 measurements
MeasurementS (27.5")M (29")L (29")XL (29")
Seat tube385 mm435 mm485 mm535 mm
Effective top tube570 mm596 mm622 mm649 mm
Top tube544 mm565 mm590 mm617 mm
Head tube97 mm97 mm110 mm122 mm
Head-tube angle69°69.7°69.8°69.9°
Seat-tube angle73.3°73.2°73.1°73°
Chainstay / rear center425 mm429 mm429 mm429 mm
Wheelbase1072 mm1097 mm1122 mm1147 mm
Bottom-bracket drop45 mm62 mm62 mm62 mm
Bottom-bracket height308 mm308 mm308 mm308 mm
Reach399 mm414 mm435 mm457 mm
Stack569 mm603 mm615 mm628 mm
Standover height737 mm777 mm806 mm837 mm
Fork offset / rake50 mm55 mm55 mm55 mm
Front center656 mm676 mm700 mm725 mm
Trail82 mm78 mm78 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 sizes32T · 11–46T · 11-speed
Lowest0.70:1 Highest2.91:1 Total range418%
Campaign

Parts & serviceability

Find replacement parts

Original specifications
Chain · Original
KMC X11, 11-speed
Cassette / rear cogs · Original
SunRace, 11-46, 11-speed
Rear derailleur · Original
Shimano XT, 11-speed Shadow Plus Search: Shimano XT, 11-speed Shadow Plus rear derailleur Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
Retailer offers · Affiliate links
More parts (4)
Shifters · Original
Shimano SLX , 11-speed Search: Shimano SLX , 11-speed shifter
Seatpost · Original
Cannondale C3, 6061 alloy, 27.2x350mm (S,M) 400mm (L,X)
Retailer offers · Affiliate links
Rims · Original
WTB STP i19 Tubeless Ready
Hubs · Original
Formula DC51 front, Formula DC-1422 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 21 checks based on 6 archived component groups Open checklistClose checklist
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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 F-Si Carbon 5 · Mountain · Published sizes: S (27.5"), M (29"), L (29"), XL (29")

Archived: Frame: F-Si, BallisTec Carbon, SPEED SAVE, PF30A, 1.5 Si Head Tube, Ai Offset, 27.5” (S), 29” (M-XL) · Fork: RockShox Reba RL, 100mm, Solo Air, Tapered Steerer, Maxle Lite, 51mm offset

Archived: Fork: RockShox Reba RL, 100mm, Solo Air, Tapered Steerer, Maxle Lite, 51mm offset

Archived: Shifters: Shimano SLX , 11-speed · Rear derailleur: Shimano XT, 11-speed Shadow Plus · Crankset: Cannondale Si, BB30 w/ Ai SpideRing, X-Sync®, 32t · Bottom bracket: Cannondale Alloy PressFit30 · Rear cogs: SunRace, 11-46, 11-speed · Chain: KMC X11, 11-speed

Archived: Brakes: Shimano Deore MT-500 hydro disc, 180/160mm (S-160/160mm)

Archived: Wheel size: 27.5" · Rims: WTB STP i19 Tubeless Ready · Hubs: Formula DC51 front, Formula DC-1422 Ai Offset dish - Rear · Front tire: Schwalbe Racing Ralph Performance 29/27.5x2.25” · Rear tire: Schwalbe Racing Ralph Performance 29/27.5x2.25”

Controls and contact points

Archived: Headset: Cannondale HeadShok Si · Handlebar: Cannondale C3 flat, 6061 double-butted Alloy, 760mm · Stem: Cannondale C3, 6061 Alloy, 1.5”, 31.8, -5°. · Seatpost: Cannondale C3, 6061 alloy, 27.2x350mm (S,M) 400mm (L,X) · Saddle: Cannondale Stage 3

Before and during the test ride

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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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