Velopedia Bicycle Archive
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Compare published geometry, gearing and specifications for up to three bicycles.
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1 of 2 bicycles
At a glance
Key differences
Supported differences are shown below. Data limitations are labeled separately.
- Gearing
2021 Cannondale CAAD13 Disc Ultegra has a 6% lower climbing ratio than 2020 Cannondale CAAD13 Disc Ultegra.
A lower ratio gives more mechanical advantage; rear-wheel rollout determines distance per crank turn.
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.
Lowest1.13:1Highest4.55:1Total range401%
Estimated speed at 90 RPMLowest gearHighest gear
Rear tire: 700C×28.
Lowest1.20:1Highest4.73:1Total range394%
Estimated speed at 90 RPMLowest gearHighest gear
Rear tire: 700C×25.
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.
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.
Specification
2021 Cannondale CAAD13 Disc Ultegra
2020 Cannondale CAAD13 Disc Ultegra
Overview
Model Year
2021
2020
Brand
Cannondale
Cannondale
Model
CAAD13 Disc Ultegra
CAAD13 Disc Ultegra
Bicycle Type
Road
Road
Colors
Mercury (MRC)
Black Pearl (BPL)
Sizes
48, 51, 54, 56, 58, 60, 62
44, 48, 51, 54, 56, 58, 60, 62
Weight
—
—
Frameset
Frame Construction
SmartForm C1 Premium Alloy, 12x142 Speed Release thru-axle, flat-mount disc, integrated cable routing w/ Switchplate, SAVE, BB30a, Di2 ready
All-New, SmartForm C1 Premium Alloy, direct mount rim brake, integrated cable routing w/ Switchplate, SAVE, BB30a, 142x12 Speed Release thru-axle, Di2 Ready
Frame Material
Aluminum
Aluminum
Fork
BallisTec Carbon, SAVE, 1-1/8” to 1-1/4” steerer, integrated crown race, 12x100mm Speed Release thru-axle, flat mount disc, internal routing, 55mm offset (47-54cm) 45mm offset (56-62cm)
All-New, BallisTec Carbon, SAVE, 1-1/8” to 1-1/4” steerer, integrated crown race, 12x100mm Speed Release thru-axle, flat mount disc, internal routing, 55mm offset (47-54cm) 45mm offset (56-62cm)
Fork Material
—
Carbon
Drivetrain
Shifters
Shimano Ultegra hydraulic disc, 11-speed
Shimano Ultegra hydro disc, 2x11
Front Derailleur
Shimano Ultegra, braze-on
Shimano Ultegra, braze-on
Rear Derailleur
Shimano Ultegra GS
Shimano Ultegra GS
Crankset
Cannondale 1, BB30a, FSA rings, 50/34
Cannondale 1, BB30a, FSA rings, 52/36
Bottom Bracket
Cannondale BB30
Cannondale BB30
Rear Cogs
Shimano 105, 11-30, 11-speed
Shimano 105, 11-30, 11-speed
Chain
Shimano HG601, 11-speed
Shimano HG601, 11-speed
Pedals
Not Included
Not Included
Brakes
Brakes
Shimano Ultegra hydraulic disc, 160/160mm RT30 rotors
Shimano Ultegra hydro disc, 160/160mm RT30 rotors
Cockpit & Contact Points
Headset
CAAD13, integrated, 1-1/8” - 1-1/4
CAAD13, 1-1/4” lower bearing, 25mm Alloy top cap
Handlebar
Cannondale C2, 7050 alloy, Compact
Cannondale C2, 7050 alloy, Compact
Stem
Cannondale C2, 6061 Alloy, 31.8, 7°
Cannondale C2, 6061 alloy, 31.8, 7°
Saddle
Prologo Nago RS STN
Prologo Nago RS STN
Seatpost
HollowGram 27 KNØT, Alloy, 2 bolt clamp, 330mm, 15mm offset
Cannondale CAAD13, alloy, 330mm
Wheels & Tires
Hubs
(F) Fulcrum Racing 900, 12x100mm centerlock / (R) Fulcrum Racing 900, 12x142mm centerlock
—
Rims
Fulcrum Racing 600 DB
Fulcrum Racing 600 DB
Spokes
Stainless steel, 14g
Stainless steel, 14g
Front Tire
Vittoria Rubino Pro Bright Black, 700c x 28c
Vittoria Rubino Pro Bright Black, 700 x 25c
Rear Tire
Vittoria Rubino Pro Bright Black, 700c x 28c
Vittoria Rubino Pro Bright Black, 700 x 25c
Wheel Size
700c
700c
Geometry · choose a size for each bicycle
Geometry size
Reach
384 mm
384 mm
Stack
555 mm
555 mm
Effective top tube
546 mm
546 mm
Head-tube angle
71.2°
71.2°
Seat-tube angle
73.7°
73.7°
Seat tube
519 mm
519 mm
Head tube
154 mm
154 mm
Chainstay / rear center
408 mm
408 mm
Wheelbase
1008 mm
1008 mm
Bottom-bracket drop
72 mm
72 mm
Bottom-bracket height
271 mm
271 mm
Standover height
790 mm
790 mm
Fork offset / rake
55 mm
55 mm
Front center
611 mm
611 mm
Trail
58 mm
58.3 mm
Wheel size
700c
—
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.