2026 Cannondale Topstone Carbon Lefty vs 2026 Specialized Diverge Comp Alloy
The 49 is the Specialized Diverge Comp Alloy size closest to your 51.0 Cannondale Topstone Carbon Lefty. 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 Specialized Diverge Comp Alloy
Compared with the Cannondale Topstone Carbon Lefty in 51.0, the Specialized Diverge Comp Alloy in 49 places the top of the head tube at about the same height and 8 mm further back, relative to the bottom bracket. Its wheelbase is 7 mm longer, which can contribute to stability at speed.
- Frame stack
- +2 mm
- About the same height
- Frame reach
- −8 mm
- Shorter frame reach
- Wheelbase
- +7 mm
- Longer: steadier at speed
- Head angle
- −0.7°
- Slacker: calmer steering
- Chainstays
- +10 mm
- Longer: more planted
The two frames
Cannondale Topstone Carbon Lefty, 51.0Specialized Diverge Comp Alloy, 49Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Cannondale Topstone Carbon Lefty 51.0 | Specialized Diverge Comp Alloy 49 | Difference |
|---|---|---|---|
| Reach | 373 | 365 | −8 mm |
| Stack | 561 | 563 | +2 mm |
| Head tube angle | 70.7 | 70 | −0.7° |
| Seat tube angle | 73.1 | 74.5 | +1.4° |
| Effective top tube | 543 | not listed | |
| Chainstay length | 420 | 430 | +10 mm |
| Wheelbase | 1012 | 1019 | +7 mm |
| BB drop | 79 | 85 | +6 mm |
| BB height | 280 | not listed | |
| Standover | 741 | 700 | −41 mm |
| Seat tube length | 446 | 400 | −46 mm |
| Head tube length | 101 | 90 | −11 mm |
Differences are the Specialized Diverge Comp Alloy minus the Cannondale Topstone Carbon Lefty. Full charts: 2026 Cannondale Topstone Carbon Lefty, 2026 Specialized Diverge Comp Alloy.
Where each sits in its class
Cannondale Topstone Carbon LeftySpecialized Diverge Comp Alloy
Each bike is ranked against the other gravel 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 | Cannondale Topstone Carbon Lefty1 Lefty AXS | Specialized Diverge Comp Alloy4 Comp Alloy |
|---|---|---|
| Frame | Cannondale Topstone | Specialized Diverge |
| Fork | Lefty Oliver | Specialized Future Shock 3.1 |
| Shifter | SRAM Rival AXS | SRAM Apex |
| Derailleur | SRAM GX Eagle AXS | SRAM Eagle Apex |
| Cassette | SRAM GX Eagle Transmission | SRAM SX Eagle |
| Chain | SRAM GX Eagle Transmission | SRAM NX Eagle |
| Crankset | SRAM Rival XPLR | SRAM Apex |
| Bottom bracket | SRAM DUB | SRAM DUB |
| Tire | WTB Vulpine TCS | Specialized Tracer |
| Rim | Reserve 40|44 GR | not listed |
| Brake | SRAM Rival | SRAM Apex, SRAM Apex AXS |
| Handlebar | Easton EA70 AX | Specialized Hover |
| Stem | Cannondale C1 Conceal | Specialized Future |
| Grips | Cannondale KnurlCork | Supacaz Suave |
| Headset | Acros IS52/40 ICR | not listed |
| Seatpost | Cannondale SAVE | Specialized Alloy |
| Saddle | fizik Terra Argo X5 | Specialized Power Sport |
| Wheelset | not listed | DT Swiss G540 |
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