Quiver

2021 Cannondale Bad Boy vs 2019 Cannondale Quick Disc

The XL is the Cannondale Quick Disc size closest to your M Cannondale Bad Boy. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.

What changes on the Cannondale Quick Disc

Compared with the Cannondale Bad Boy in M, the Cannondale Quick Disc in XL places the top of the head tube 8 mm higher and 3 mm further forward, relative to the bottom bracket. Its wheelbase is 33 mm longer, which can contribute to stability at speed.

Frame stack
+8 mm
Higher front end
Frame reach
+3 mm
Longer frame reach
Wheelbase
+33 mm
Longer: steadier at speed
Head angle
±0.0°
About the same head angle
Chainstays
±0 mm
About the same

The two frames

2021 Cannondale Bad Boy (M) and 2019 Cannondale Quick Disc (XL), lined up at the bottom bracketBoth frames drawn to scale. The Cannondale Bad Boy is drawn in full with its measurements, and the Cannondale Quick Disc is the colored outline on top.J 1070

Cannondale Bad Boy, MCannondale Quick Disc, XLDrawn to scale and lined up at the bottom bracket.

Geometry side by side

MeasurementCannondale Bad Boy MCannondale Quick Disc XLDifference
Reach409412+3 mm
Stack618626+8 mm
Head tube angle7070±0.0°
Seat tube angle73.573−0.5°
Effective top tube592603+11 mm
Chainstay length435435±0 mm
Wheelbase10701103+33 mm
BB drop5368+15 mm
BB height280277−3 mm
Standover792812+20 mm
Seat tube length490550+60 mm
Head tube length160211+51 mm

Differences are the Cannondale Quick Disc minus the Cannondale Bad Boy. Full charts: 2021 Cannondale Bad Boy, 2019 Cannondale Quick Disc.

Where each sits in its class

Cannondale Bad BoyCannondale Quick Disc

AggressivePositionUpright
CalmSteeringQuick
PlayfulBalancePlanted

Each bike is ranked against the other commuter bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.

What each ships with

The stock build of each bike's first listed trim. Parts that match are dimmed.

PartCannondale Bad Boy1Cannondale Quick DiscDisc 1
FrameCannondale Bad Boy OPInot listed
ForkLefty LightPipenot listed
ShifterShimano AlfineShimano RS700 FB
CassetteGates CDXShimano 105
ChainGates CDX CentertrackShimano HG601
CranksetGates S150FSA Omega
Bottom bracketThun Zumbanot listed
TireWTB BywaySchwalbe Spicer
BrakeShimano MT400 hydro, Shimano MT401Shimano MT201 hydro
StemBad Boy SiCannondale C3
GripsFabric Silicone CellCannondale Density
SeatpostLightSkinCannondale C3
SaddleFabric Scoop Radius EliteCannondale Performance
Derailleurnot listedShimano 105, Shimano 105 GS
Pedalsnot listedCannondale Reinforced
Rimnot listedDC3.0
Handlebarnot listedCannondale C3

Know what is on every bike.

Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.

Explore the app
A Transition Relay build sheet: frame, fork, shock and drivetrainThe Relay’s ride photo galleryThe Relay’s ride spectrum and 2D frame geometryThe garage: five bikes and 99 recorded partsA Specialized Tarmac SL8 road build sheet