Velopedia Bicycle Archive

Compare Bicycles

Compare published geometry, gearing and specifications for up to three bicycles.

1 of 2 bicycles

At a glance

Key differences

Supported differences are shown below. Data limitations are labeled separately.

  1. Data limitation

    No geometry is recorded for 2015 Cannondale F-SI CARBON 1.

Selected-size geometry

Geometry overlay

Frames share one scale and a bottom-bracket alignment. Size labels differ by brand; schematic drawing aids are identified below.

Gearing comparison

Lower gears help on climbs. Higher gears suit higher speeds.

RPM

RPM = pedal turns per minute.

2019 Cannondale F-Si Carbon 1Size M (29“) · 34T · 10–50T · 12-speed
Lowest0.68:1Highest3.40:1Total range500%
Estimated speed at 90 RPMLowest gear5.3 mphHighest gear26.4 mph

Rear tire: 29×2.25.

2015 Cannondale F-SI CARBON 138/24T · 11–36T · 10-speed
Lowest0.67:1Highest3.45:1Total range518%
Estimated speed at 90 RPMLowest gear5.1 mphHighest gear26.5 mph

Uses front tire 29×2.1; rear size isn’t listed.

How it works

Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.

Speeds are estimates from tire size and pedal cadence. Actual speeds vary.

Try other gearing

Complete specification tableShows different published values and gaps where a bicycle lacks data. Different wording reflects source language, not necessarily different components. Swipe for more columns.
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Specification
2019 Cannondale F-Si Carbon 1
2015 Cannondale F-Si Carbon 1
Overview
Model Year
2019
2015
Brand
Cannondale
Cannondale
Model
F-Si Carbon 1
F-Si Carbon 1
Bicycle Type
Mountain
Mountain Hardtail
Original MSRP
Not documented
$7,040.00
Colors
Black Pearl w/ Graphite and Chrome - Gloss (BLK)
Black/Green
Sizes
S, M, L, XL
S, M, L, XL
Weight
—
—
Frameset
Frame Construction
ALL-NEW F-Si, Hi-MOD BallisTec Carbon, SAVE, PF30A, tapered head tube, Speed Release 12mm thru axle, Ai Offset
F-Si Asymmetric, BallisTec Hi-MOD Carbon, SPEED SAVE, PF30A, 1.5 Si Head Tube
Frame Material
Carbon
Carbon Fiber
Fork
ALL-NEW Lefty Ocho Carbon, 29”, 100mm, Chamber Damper with cable lockout, OppO Spring System, tapered steerer, 55mm offset
Lefty 2.0 Carbon XLR 100 29, XLR XC damper, Hybrid Needle Bearing Technology, 55mm offset
Fork Material
Carbon
Suspension
Drivetrain
Component Group
—
Shimano mix
Shifters
SRAM X01 Eagle, 12-speed
Shimano XT w/ I-Spec
Front Derailleur
—
SRAM XO, direct mount
Rear Derailleur
SRAM XX1 Eagle
Shimano XTR, Shadow Plus
Crankset
Truvativ Stylo Carbon, 34T, Ai Custom
Cannondale HollowGram Si, Ai, BB30, FSA 38/24 rings
Bottom Bracket
Cannondale Alloy PressFit30
Cannondale Alloy PressFit30
Rear Cogs
SRAM XG-1295, X01 Eagle, 10-50, 12-speed
Shimano XT, 11-36, 10-speed
Chain
SRAM GX Eagle, 12-speed
KMC X10SL, 10-speed
Pedals
Not Included
—
Brakes
Brakes
SRAM Level TLM hydro disc, 160/160mm Centerline rotors
Shimano XT Race, 160/160mm
Cockpit & Contact Points
Headset
Integrated, 1-1/8 to 1.5”, sealed angular contact bearings (Integrated steer stop size small only)
Cannondale HeadShok Si
Handlebar
Cannondale C1 Flat, Carbon, 8° sweep, 760mm
Cannondale C1 flat, carbon, 700mm
Stem
Cannondale C1, 7075 Alloy, 1-1/8”, 31.8, 7°
Cannondale OPI Adjustable Stem/Steerer 2.0, 31.8, -5 deg
Saddle
Fabric Scoop Flat Race, ti rails
Fabric Scoop Pro, Carbon
Seatpost
Cannondale C1 Full Carbon, 27.2 x 350/400mm
Cannondale F-Si SAVE 2 Carbon, 27.2x400mm
Wheels & Tires
Hubs
Lefty 60 front, HollowGram 12x148 rear w/ DT Swiss internals
Mavic CrossMax SL Lefty (Ai offset lacing)
Rims
HollowGram 23, Superlight Hi-Impact Carbon, tubeless ready, 28h, 23mm inner width
Mavic CrossMax SL Ai, 29, tubeless ready (Ai offset lacing)
Spokes
HollowGram, double-butted straight pull (Ai Offset dish - rear)
Mavic CrossMax SL 29 (Ai offset lacing)
Front Tire
Schwalbe Racing Ray 29 x 2.25” front, Racing Ralph 2.25” rear, Snake Skin Addix Speedgrip Compound, tubeless ready
Schwalbe Racing Ralph EVO Snakeskin, 29x2.1", folding, tubeless ready
Rear Tire
Schwalbe Racing Ray 29 x 2.25” front, Racing Ralph 2.25” rear, Snake Skin Addix Speedgrip Compound, tubeless ready
—
Wheel Size
29"
29
Geometry · choose a size for each bicycle
Geometry size
—
Reach
420 mm
—
Stack
612 mm
—
Effective top tube
606 mm
—
Head-tube angle
69°
—
Seat-tube angle
73.1°
—
Seat tube
430 mm
—
Head tube
101 mm
—
Chainstay / rear center
427 mm
—
Wheelbase
1110 mm
—
Bottom-bracket drop
62 mm
—
Bottom-bracket height
308 mm
—
Standover height
793 mm
—
Fork offset / rake
55 mm
—
Front center
691 mm
—
Trail
82 mm
—

Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.

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