2021 Trek Speed Concept vs 2020 Cervélo PX-Series Base
The L is the Cervélo PX-Series Base size closest to your M Trek Speed Concept. 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 Cervélo PX-Series Base
Compared with the Trek Speed Concept in M, the Cervélo PX-Series Base in L places the top of the head tube 7 mm higher and 15 mm further forward, relative to the bottom bracket. Its wheelbase is 23 mm longer, which can contribute to stability at speed.
- Frame stack
- +7 mm
- Higher front end
- Frame reach
- +15 mm
- Longer frame reach
- Wheelbase
- +23 mm
- Longer: steadier at speed
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- +5 mm
- Longer: more planted
The two frames
We can't draw these frames yet. The Trek Speed Concept numbers we have for size M are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Speed Concept M | Cervélo PX-Series Base L | Difference |
|---|---|---|---|
| Reach | 408 | 423 | +15 mm |
| Stack | 517 | 524 | +7 mm |
| Head tube angle | 72.5° | 72.5 | ±0.0° |
| Effective top tube | 518 | not listed | |
| Chainstay length | 400 | 405 | +5 mm |
| Wheelbase | 985 | 1008 | +23 mm |
| BB drop | 80 | 75 | −5 mm |
| Standover | 775 | 755 | −20 mm |
| Seat tube length | 529 | not listed | |
| Head tube length | 90 | 126 | +36 mm |
| Seat tube angle | not listed | 78.5 |
Differences are the Cervélo PX-Series Base minus the Trek Speed Concept. Full charts: 2021 Trek Speed Concept, 2020 Cervélo PX-Series Base.
Where each sits in its class
Trek Speed ConceptCervélo PX-Series Base
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 | Trek Speed ConceptSpeed Concept | Cervélo PX-Series BaseBase |
|---|---|---|
| Frame | Trek OCLV | Cervélo PX-Series |
| Fork | Trek SC | Cervélo PX |
| Shifter | Shimano Dura-Ace | Shimano Dura-Ace Di2 |
| Derailleur | Shimano Ultegra R8000 | Shimano Dura-Ace Di2 |
| Cassette | Shimano Ultegra R8000 | Shimano Dura-Ace |
| Chain | Shimano Ultegra HG701 | Shimano Dura-Ace DI2 |
| Crankset | Shimano Ultegra R8000 | Shimano Dura-Ace Di2 |
| Bottom bracket | Trek BB90 | not listed |
| Wheelset | Bontrager Aeolus Comp | DT Swiss ARC 1100 |
| Tire | Bontrager R2 Hard-Case Lite | Victoria Corsa Speed |
| Brake | Bontrager Limit | Shimano Dura-Ace Di2 |
| Handlebar | Bontrager Concept KVF | Cervélo P5X Basebar |
| Stem | Bontrager Concept | not listed |
| Seatpost | Bontrager Concept | Cervélo SP21 |
| Saddle | Bontrager Hilo | Ism PS 1.0 |
| Chainring | not listed | Shimano Dura-Ace Di2 |
| Rotor | not listed | Shimano DURA-ACE |
| Headset | not listed | FSA IS2 |
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