2026 Cannondale Topstone Carbon Lefty vs 2025 3T Exploro Ultra 700c
The 56 is the 3T Exploro Ultra 700c size closest to your 54.0 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 3T Exploro Ultra 700c
Compared with the Cannondale Topstone Carbon Lefty in 54.0, the 3T Exploro Ultra 700c in 56 places the top of the head tube 5 mm higher and 3 mm further forward, relative to the bottom bracket.
- Frame stack
- +5 mm
- Higher front end
- Frame reach
- +3 mm
- Longer frame reach
- Wheelbase
- n/a
- One of the bikes has no number for this
- Head angle
- +1.3°
- Steeper: sharper steering
- Chainstays
- n/a
- One of the bikes has no number for this
The two frames
Only the Cannondale Topstone Carbon Lefty is drawn. The 3T Exploro Ultra 700c numbers we have for size 56 are missing the seat angle, chainstay length and wheelbase.
Geometry side by side
| Measurement | Cannondale Topstone Carbon Lefty 54.0 | 3T Exploro Ultra 700c 56 | Difference |
|---|---|---|---|
| Reach | 378 | 381 | +3 mm |
| Stack | 579 | 584 | +5 mm |
| Head tube angle | 70.7 | 72 | +1.3° |
| Seat tube angle | 73.1 | not listed | |
| Effective top tube | 554 | not listed | |
| Chainstay length | 420 | not listed | |
| Wheelbase | 1026 | not listed | |
| BB drop | 76 | 77 | +1 mm |
| BB height | 283 | not listed | |
| Standover | 772 | not listed | |
| Seat tube length | 482 | not listed | |
| Head tube length | 123 | 175 | +52 mm |
| Fork length | not listed | 375 |
Differences are the 3T Exploro Ultra 700c minus the Cannondale Topstone Carbon Lefty. Full charts: 2026 Cannondale Topstone Carbon Lefty, 2025 3T Exploro Ultra 700c.
Where each sits in its class
Cannondale Topstone Carbon Lefty3T Exploro Ultra 700c
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 | 3T Exploro Ultra 700cGRX 1X12 700c |
|---|---|---|
| Frame | Cannondale Topstone | 3T Exploro Ultra |
| Fork | Lefty Oliver | Fango Ultra |
| Shifter | SRAM Rival AXS | Shimano GRX Di2 |
| Derailleur | SRAM GX Eagle AXS | Shimano GRX Di2 |
| Cassette | SRAM GX Eagle Transmission | Shimano XT M8100 |
| Chain | SRAM GX Eagle Transmission | not listed |
| Crankset | SRAM Rival XPLR | Shimano GRX FC-RX600 |
| Bottom bracket | SRAM DUB | not listed |
| Tire | WTB Vulpine TCS | variable |
| Rim | Reserve 40|44 GR | not listed |
| Brake | SRAM Rival | Shimano GRX Di2 |
| Handlebar | Easton EA70 AX | 3T variable |
| Stem | Cannondale C1 Conceal | 3T Apto Stealth |
| Grips | Cannondale KnurlCork | not listed |
| Headset | Acros IS52/40 ICR | not listed |
| Seatpost | Cannondale SAVE | 3T round |
| Saddle | fizik Terra Argo X5 | variable |
| Wheelset | not listed | Fulcrum Rapid 900 |
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