VelopediaBicycle Archive · Specification report

Bicycle comparison

2021 Cannondale Synapse Carbon 105 · 2019 Cannondale Synapse Carbon 105

Specification2021 Cannondale Synapse Carbon 1052019 Cannondale Synapse Carbon 105
Overview
Model year20212019
BrandCannondaleCannondale
ModelSynapse Carbon 105Synapse Carbon 105
Bicycle typeRoadRoad
Archive ID900004747900002732
ColorsMantis (MAT)Jet Black w/ Acid Red - Satin (BLK)
Sizes48, 51, 54, 56, 58, 6148, 51, 54, 56, 58, 61
Frameset
Frame constructionBallisTec Carbon, Di2 ready, SAVE, BB30a, flat mount, 12x142mm thru axle, internal cable routing, removable fender bridgeSynapse, BallisTec Carbon, Di2 ready, SAVE, BB30a, rim brake
Frame materialCarbonCarbon
ForkBallisTec Full Carbon, integrated crown race, SAVE, size- specific design, 12x100mm thru-axle, internal routingSynapse, SAVE, BallisTec Carbon, 1-1/8” to 1-1/4” tapered steerer
Fork material—Carbon
Drivetrain
ShiftersShimano 105, 11-speedShimano 105, 2x11
Front derailleurShimano 105, braze-onShimano 105, braze-on
Rear derailleurShimano 105 GSShimano 105 GS
CranksetCannondale 1, BB30a, 50/34Cannondale Si, BB30a w/ FSA rings, 50/34
Bottom bracketCannondale BB30Cannondale BB30
Rear cogsShimano 105, 11-34, 11-speedShimano 105, 11-34, 11-speed
ChainShimano HG601, 11-speedShimano HG601, 11-speed
PedalsNot includedNot Included
Brakes
BrakesShimano 105 hydraulic disc, 160/160mm RT64 rotorsShimano 105 7000
Cockpit & contact points
HeadsetSynapse Carbon, integrated, 1-1/8” - 1-1/8” (48 cm), 1-1/8” - 1-1/4” (51-54 cm), 1-1/8” - 1-3/8” (56-61 cm)Synapse Si, 25mm Alloy top cap
HandlebarCannondale 3, 6061 alloy, CompactCannondale C3, 6061 Alloy, Compact
StemCannondale 3, 6061 Alloy, 31.8, 7°Cannondale C3, 6061 Alloy, 31.8, 7°
SaddleFabric Scoop Shallow Sport, steel railsFabric Scoop Shallow Sport, steel rails
SeatpostCannondale 3, 6061 Alloy, 25.4 x 300mm (48- 51), 350mm (54-56), 400mm (58-61)Cannondale C3, 6061 Alloy, 25.4 x 350mm (44-56), 400mm (58-61)
Wheels & tires
Hubs(F) Formula CL-712, 12x100mm centerlock (R) Formula RXC-400, 12x142mm centerlockFulcrum Racing Sport
RimsCannondale RD 2.0 Disc, double wall w/ eyelet, 28hFulcrum Racing Sport
SpokesStainless Steel, 14gFulcrum Racing Sport
Front tireVittoria Zaffiro Pro Bright Black, 700c x 30c, reflectiveVittoria Zaffiro, 700 x 25c
Rear tireVittoria Zaffiro Pro Bright Black, 700c x 30c, reflectiveVittoria Zaffiro, 700 x 25c
Wheel size700c700c

Geometry comparison

One selected size or frame position per bicycle, matching the comparison dropdown choices used when Print / PDF was opened.

Measurement2021 Cannondale Synapse Carbon 1052019 Cannondale Synapse Carbon 105
Selected size / position5454
Reach382 mm382 mm
Stack570 mm570 mm
Effective top tube547 mm547 mm
Head-tube angle71.7°71.7°
Seat-tube angle73.9°73.9°
Seat tube480 mm480 mm
Head tube161 mm161 mm
Chainstay / rear center410 mm410 mm
Wheelbase1008 mm1008 mm
Bottom-bracket drop73 mm73 mm
Bottom-bracket height272 mm272 mm
Standover height773 mm773 mm
Fork offset / rake55 mm55 mm
Front center609 mm609 mm
Trail56 mm56 mm
Wheel size700c—

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on November 6, 2026.