2026 Cannondale Treadwell vs 2027 Trek FX Sport SL
The S is the Trek FX Sport SL size closest to your M Cannondale Treadwell. 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 Trek FX Sport SL
Compared with the Cannondale Treadwell in M, the Trek FX Sport SL in S places the top of the head tube 12 mm lower and 6 mm further forward, relative to the bottom bracket. Its wheelbase is 19 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −12 mm
- Lower front end
- Frame reach
- +6 mm
- Longer frame reach
- Wheelbase
- −19 mm
- Shorter: quicker to change direction
- Head angle
- −0.5°
- Slacker: calmer steering
- Chainstays
- −18 mm
- Shorter: livelier
The two frames
Only the Cannondale Treadwell is drawn. The Trek FX Sport SL numbers we have for size S are missing the seat angle.
Geometry side by side
| Measurement | Cannondale Treadwell M | Trek FX Sport SL S | Difference |
|---|---|---|---|
| Reach | 379 | 385 | +6 mm |
| Stack | 580 | 568 | −12 mm |
| Head tube angle | 71 | 70.5° | −0.5° |
| Seat tube angle | 71 | not listed | |
| Effective top tube | 579 | 543 | −36 mm |
| Chainstay length | 460 | 442 | −18 mm |
| Wheelbase | 1073 | 1054 | −19 mm |
| BB drop | 60 | 65 | +5 mm |
| BB height | 284 | 285 | +1 mm |
| Standover | 710 | 751 | +41 mm |
| Seat tube length | 444 | 406 | −38 mm |
| Fork length | 404 | not listed | |
| Head tube length | 165 | 140 | −25 mm |
Differences are the Trek FX Sport SL minus the Cannondale Treadwell. Full charts: 2026 Cannondale Treadwell, 2027 Trek FX Sport SL.
Where each sits in its class
Cannondale TreadwellTrek FX Sport SL
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.
| Part | Cannondale Treadwell1 | Trek FX Sport SLSL 4 |
|---|---|---|
| Frame | Cannondale SmartForm C3 | Trek FX Sport |
| Shifter | Shimano CUES U4000 | Shimano CUES U6000 |
| Derailleur | Shimano CUES U4000 | Shimano CUES U6000 GS |
| Cassette | Shimano CUES | Shimano CUES LG300 |
| Chain | KMC XGlide | KMC Glide |
| Crankset | Shimano CUES U4000 | Prowheel Alloy |
| Bottom bracket | Shimano UN101 | not listed |
| Tire | WTB Byway | Bontrager GR1 Expert |
| Brake | Tektro M275 | Shimano MT201 |
| Handlebar | Cannondale Cruise Control | Bontrager Satellite Plus IsoZone |
| Stem | Cannondale Intellimount | Bontrager Elite |
| Grips | Cannondale ParkLane | Bontrager Satellite IsoZone Plus |
| Saddle | Selle Royal Lookin | Trek Verse |
| Fork | not listed | Carbon |
| Chainring | not listed | Prowheel narrow-wide |
| Pedals | not listed | Bontrager City |
| Wheelset | not listed | Bontrager Paradigm |
| Hub | not listed | Formula CL-51, Formula CL-52 |
| Rim | not listed | Bontrager Paradigm |
| Rotor | not listed | Shimano SM-RT10 |
| Headset | not listed | Bontrager Expander Plug |
| Seatpost | not listed | Bontrager alloy |
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