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. No key difference could be established from the available data. Check the full table for the details.

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 Synapse Carbon Disc Ultegra Di2Size 54 · 50/34T · 11–34T · 11-speed
Lowest1.00:1Highest4.55:1Total range455%
Estimated speed at 90 RPMLowest gear7.2 mphHighest gear32.5 mph

Rear tire: 700C×28.

2020 Cannondale Synapse Carbon Disc Ultegra Di2Size 54 · 50/34T · 11–34T · 11-speed
Lowest1.00:1Highest4.55:1Total range455%
Estimated speed at 90 RPMLowest gear7.2 mphHighest gear32.7 mph

Rear tire: 700C×30.

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 Synapse Carbon Disc Ultegra Di2
2020 Cannondale Synapse Carbon Disc Ultegra Di2
Overview
Model Year
2019
2020
Brand
Cannondale
Cannondale
Model
Synapse Carbon Disc Ultegra Di2
Synapse Carbon Disc Ultegra Di2
Bicycle Type
Road
Road
Colors
Sage Gray w/ Graphite and Volt - Gloss (SGG)
Emerald (EMR)
Sizes
48, 51, 54, 56, 58, 61
48, 51, 54, 56, 58, 61
Weight
—
—
Frameset
Frame Construction
Synapse Disc Asymmetric, BallisTec Carbon, Di2 ready, SAVE, BB30a, flat mount, 12mm thru axle
BallisTec Carbon, Di2 ready, SAVE, BB30a, flat mount, 12mm thru axle, internal cable routing, removable fender bridge
Frame Material
Carbon
Carbon
Fork
Synapse Disc Asymmetric, BallisTec Carbon, SAVE, integrated crown race, 12x100mm thru-axle, size-specific design - 44-48: 1 1/8” steerer, 60mm rake 51-54: 1-1/8” - 1-1/4” tapered steerer, 55mm rake 56-61: 1-1/8” - 1-3/8” tapered steerer, 45mm rake
BallisTec Carbon, SAVE, integrated crown race, 12x100mm thru-axle, internal routing, size-specific design - 44-48: 1 1/8” steerer, 60mm rake 51-54: 1-1/8” - 1-1/4” tapered steerer, 55mm rake 56-61: 1-1/8” - 1-3/8” tapered steerer, 45mm rake
Fork Material
Carbon
Carbon
Drivetrain
Shifters
Shimano Ultegra Di2 hydro disc, 2x11
Shimano Ultegra Di2 hydro disc, 2x11
Front Derailleur
Shimano Ultegra Di2, braze-on
Shimano Ultegra Di2, braze-on
Rear Derailleur
Shimano Ultegra Di2 GS
Shimano Ultegra Di2 GS
Crankset
Cannondale Si, BB30a w/ FSA rings, 50/34
Cannondale 1, BB30a, FSA rings, 50/34
Bottom Bracket
Cannondale Alloy PressFit30
Cannondale Alloy PressFit30
Rear Cogs
Shimano 105, 11-34, 11-speed
Shimano 105, 11-34, 11-speed
Chain
Shimano HG601, 11-speed
Shimano HG601, 11-speed
Pedals
Not Included
Not Included
Brakes
Brakes
Shimano Ultegra hydro disc, 160/160mm RT70 rotors
Shimano Ultegra Di2 hydro disc, 160/160mm RT30 rotors
Cockpit & Contact Points
Headset
Synapse Si, 25mm Alloy top cap
Synapse, 1-1/4” lower bearing, 25mm top cap
Handlebar
Cannondale C2, 7050 Alloy, Compact
Cannondale 2, 7050 Alloy, Compact
Stem
Cannondale C2, 6061 Alloy, 31.8, 7°
Cannondale 2, 6061 Alloy, 31.8, 7°
Saddle
Fabric Scoop Shallow Sport, steel rails
Fabric Scoop Shallow Sport, steel rails
Seatpost
Cannondale C2, UD Carbon, 25.4 x 350mm (44-56), 400mm (58-61)
Cannondale 2, UD Carbon, 25.4 x 350mm
Wheels & Tires
Hubs
Fulcrum Racing 600 DB, 12x100 front, 12x142 rear
(F) Fulcrum Racing 600 DB, 12x100 / (R) Fulcrum Racing 600 DB, 12x142
Rims
Fulcrum Racing 600 DB, Alloy clincher, 26mm deep
Fulcrum Racing 600 DB, Alloy clincher, 26mm deep
Spokes
Fulcrum Stainless Steel
Fulcrum, Stainless steel
Front Tire
Vittoria Rubino Pro, 700 x 28c
Vittoria Rubino Pro Bright Black, 700x30c
Rear Tire
Vittoria Rubino Pro, 700 x 28c
Vittoria Rubino Pro Bright Black, 700x30c
Wheel Size
700c
700c
Geometry · choose a size for each bicycle
Geometry size
Reach
382 mm
382 mm
Stack
570 mm
570 mm
Effective top tube
547 mm
547 mm
Head-tube angle
71.7°
71.7°
Seat-tube angle
73.9°
73.9°
Seat tube
480 mm
480 mm
Head tube
161 mm
161 mm
Chainstay / rear center
410 mm
410 mm
Wheelbase
1008 mm
1008 mm
Bottom-bracket drop
73 mm
73 mm
Bottom-bracket height
272 mm
272 mm
Standover height
773 mm
773 mm
Fork offset / rake
55 mm
55 mm
Front center
609 mm
609 mm
Trail
56 mm
56 mm

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

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