2025 Giant Defy Advanced Pro vs 2027 Giant Contend SL
The Giant Contend SL size closest to your M is the M. Compare the M instead
What changes on the Giant Contend SL
Compared with the Giant Defy Advanced Pro in M, the Giant Contend SL in ML places the top of the head tube 19 mm higher and 4 mm further forward, relative to the bottom bracket. Its wheelbase is 12 mm longer, which can contribute to stability at speed.
- Frame stack
- +19 mm
- Higher front end
- Frame reach
- +4 mm
- Longer frame reach
- Wheelbase
- +12 mm
- Longer: steadier at speed
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- ±0 mm
- About the same
The two frames
Giant Defy Advanced Pro, MGiant Contend SL, MLDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Giant Defy Advanced Pro M | Giant Contend SL ML | Difference |
|---|---|---|---|
| Reach | 380 | 383.7 | +4 mm |
| Stack | 558 | 576.6 | +19 mm |
| Head tube angle | 72.5 | 72.5° | ±0.0° |
| Seat tube angle | 73.5 | 73.0° | −0.5° |
| Chainstay length | 420 | 420 | ±0 mm |
| Wheelbase | 998 | 1010 | +12 mm |
| BB drop | 75 | 70 | −5 mm |
| Standover | 762 | 777.5 | +16 mm |
| Seat tube length | 480 | 515 | +35 mm |
| Head tube length | 150 | 175 | +25 mm |
Differences are the Giant Contend SL minus the Giant Defy Advanced Pro. Full charts: 2025 Giant Defy Advanced Pro, 2027 Giant Contend SL.
Where each sits in its class
Giant Defy Advanced ProGiant Contend SL
Each bike is ranked against the other road 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.
| Part | Giant Defy Advanced ProAdvanced Pro 0 | Giant Contend SLSL 1 |
|---|---|---|
| Frame | Giant Defy | Giant ALUXX SL-grade |
| Fork | Giant Advanced SL Composite OverDrive Aero | Giant Advanced-Grade |
| Shifter | Shimano Ultegra R8170 | Shimano Tiagra R4000 |
| Derailleur | Shimano Ultegra R8150 Di2 | Shimano Tiagra R4000 |
| Cassette | Shimano Ultegra | Shimano CS-RS400-11 |
| Chain | Shimano Ultegra DI2 | KMC X11 |
| Crankset | Shimano Ultegra Mid Compact | Shimano R4000 |
| Bottom bracket | Shimano press fit | not listed |
| Wheelset | Giant SLR 1 36 | not listed |
| Tire | Cadex Classics | Giant SR 1 |
| Brake | Shimano Ultegra Di2 hydraulic disc | Shimano Tiagra, Shimano Tiagra R4000 |
| Rotor | Shimano RT-CL800 | not listed |
| Handlebar | Giant Contact SLR D-Fuse | Giant Contact |
| Stem | Giant Contact SL AeroLight | Giant Contact AeroLight |
| Grips | Lite 3.0 | Giant Cork |
| Seatpost | Giant D-Fuse SLR | Giant D-Fuse |
| Saddle | Giant Fleet SL | Giant Grit Core |
| Rim | not listed | Giant ALP |
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