2027 Trek FX vs 2025 Kona Sutra
The 56 is the Kona Sutra size closest to your L Trek FX. 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 Kona Sutra
Compared with the Trek FX in L, the Kona Sutra in 56 places the top of the head tube 12 mm higher and 4 mm further back, relative to the bottom bracket. Its wheelbase is 6 mm longer, which can contribute to stability at speed.
- Frame stack
- +12 mm
- Higher front end
- Frame reach
- −4 mm
- Shorter frame reach
- Wheelbase
- +6 mm
- Longer: steadier at speed
- Head angle
- −1.0°
- Slacker: calmer steering
- Chainstays
- −2 mm
- About the same
The two frames
We can't draw these frames yet. The Trek FX numbers we have for size L are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek FX L | Kona Sutra 56 | Difference |
|---|---|---|---|
| Reach | 399 | 395 | −4 mm |
| Stack | 620 | 632 | +12 mm |
| Head tube angle | 71.5° | 70.5 | −1.0° |
| Effective top tube | 583 | 588 | +5 mm |
| Chainstay length | 447 | 445 | −2 mm |
| Wheelbase | 1080 | 1086 | +6 mm |
| BB drop | 65 | 70 | +5 mm |
| BB height | 285 | 285 | ±0 mm |
| Standover | 791 | 835 | +44 mm |
| Seat tube length | 465 | 560 | +95 mm |
| Head tube length | 190 | 195 | +5 mm |
| Seat tube angle | not listed | 73.0 | |
| Fork length | not listed | 415 |
Differences are the Kona Sutra minus the Trek FX. Full charts: 2027 Trek FX, 2025 Kona Sutra.
Where each sits in its class
Trek FXKona Sutra
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 | Trek FX2 | Kona SutraSutra |
|---|---|---|
| Fork | Trek FX | Kona Project Two |
| Shifter | Shimano CUES U4000 | microSHIFT Sword |
| Derailleur | Shimano CUES U4000 | microSHIFT SWORD |
| Cassette | Shimano LINKGLIDE LG300 | microSHIFT SWORD |
| Tire | Bontrager H2 Comp | Schwalbe Marathon Mondial |
| Rotor | Tektro Wave | TRP TR |
| Frame | not listed | Kona Cromoly Butted |
| Chain | not listed | KMC X10 |
| Crankset | not listed | PROWHEEL |
| Chainring | not listed | Prowheel |
| Bottom bracket | not listed | Prowheel BB68+ |
| Wheelset | not listed | WTB ST i23 TCS 2.0 |
| Brake | not listed | TRP HDC711C |
| Handlebar | not listed | Kona Road |
| Stem | not listed | Kona Road |
| Grips | not listed | Brooks Microfiber |
| Headset | not listed | FSA No.1/No.10 |
| Seatpost | not listed | Kona Deluxe Thumb |
| Saddle | not listed | Brooks B17 |
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