Velopedia Bicycle Archive
2026 Cervelo P-Series 105
Triathlon/TT bicycle from the Velopedia specification archive.
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- Original MSRP
- $5,300.00
- Sizes
- 48, 51, 54, 56, 58, 61
- Colors
- Abyss, Haleakala
- Weight
- 9.7 kgs
- Geometry
- 6 manufacturer sizes · Ride analysis
- Archive ID
- 900000163
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Velopedia analysis
What the specifications mean
The 309% cassette range describes the available gearing more clearly than the component-group name alone. The rims and tires are tubeless-ready, but that label does not confirm the bike is currently set up without tubes; tape, valves, sealant and tire condition still matter. The archived frame description does not map confidently to a material-specific inspection rule, so the frame and fork should be checked directly for structural damage, alignment problems, corrosion and evidence of repair.
Gearing
309% cassette range
Calculated from the published 11–34-tooth sprocket span.
Tire setup
Tubeless-ready
The rims and tires may support tubeless use, but the bike may still be running tubes.
Frame material
Construction not classified
The published wording does not support material-specific assumptions, so use universal structural checks.
Published weight
9.7 kgs
Frame size, pedals, tire setup and production substitutions can change the measured result.
Used-bike inspection
If you’re buying this bike used
Before any test ride: both brakes should stop the bike firmly and release cleanly; both wheels should run true and be securely attached; tires should have no casing damage; and the headset, handlebar, stem, cranks and pedals should have no looseness or play.
Follow the full used-bike inspection order →- FrameInspect the complete frame and fork in bright light for cracks, dents, distortion, corrosion, impact marks, suspicious paint differences or signs of repair. Check the head tube, bottom-bracket area, dropouts, joints and clamped surfaces especially closely.Inspect the frame and fork →
- BrakesTest each brake separately and confirm it stops firmly and releases cleanly. Inspect the pads and braking surfaces for wear or contamination, and check the cables or hoses for damage.Inspect the brakes →
- DrivetrainShift through every gear under light load and measure chain wear. Confirm that the shifter, derailleur, chain and cassette belong to the same 12-speed system.Check drivetrain wear →
- Wheels & tiresSpin both wheels and watch the rims for side-to-side or vertical movement. Check for dents, cracks, loose or uneven spokes and hub play, then inspect both tire casings for cuts, cracking or exposed threads. If it is set up tubeless, confirm both tires hold pressure and ask when the sealant was last refreshed.Check wheels and tires →
Bike-specific inspection checklist 20 checks based on 5 archived component groups Open checklistClose checklist
This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.
Identity and fit
Follow the full used-bike inspection order →Archived: 2026 Cervelo P-Series 105 · Triathlon/TT · Published sizes: 48, 51, 54, 56, 58, 61
Frame and fork
Inspect the frame and fork →Archived: Frame: Cervélo P-Series frame · Fork: Cervélo All-Carbon, Tapered P Fork · Carbon Fiber
Drivetrain
Check drivetrain wear →Archived: Front derailleur: Shimano 105, R7100 · Rear derailleur: Shimano 105, R7100 · Crankset: Shimano 105 R7100, 52/36T · Bottom bracket: FSA, BBright thread together for 24mm spindle · Cassette: Shimano 105, R7101, 11-34T, 12-Speed · Chain: Shimano M7100
Brakes
Inspect the brakes →Archived: Brakes: Riderever Triva Carbon; Rotors: Shimano CL700 Centerlock
Wheels and tires
Check wheels and tires →Archived: Wheels: Vision TC60 i23 · Front tire: Vittoria Corsa N.EXT TLR G2.0 700x29c · Rear tire: Vittoria Corsa N.EXT TLR G2.0 700x29c
Controls and contact points
Archived: Headset: FSA IS2 1-1/4, 45° x 45° / 1-3/8, 36° x 45° · Handlebar: Profile Design Bracket Riser Kit 30mm · Stem: Cervélo ST36 Alloy · Seatpost: Cervélo SP23 Carbon · Saddle: Cervélo Tri Saddle
Before and during the test ride
Follow the full used-bike inspection order →Interpretation based on the archived manufacturer specifications. Confirm exact fit and standards before ordering parts or performing service.
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Frameset
| Frame Construction | Cervélo P-Series frame |
|---|---|
| Fork | Cervélo All-Carbon, Tapered P Fork |
| Fork Material | Carbon Fiber |
Drivetrain
| Front Derailleur | Shimano 105, R7100 |
|---|---|
| Rear Derailleur | Shimano 105, R7100 |
| Crankset | Shimano 105 R7100, 52/36T |
| Bottom Bracket | FSA, BBright thread together for 24mm spindle |
| Cassette | Shimano 105, R7101, 11-34T, 12-Speed |
| Chain | Shimano M7100 |
Brakes
| Brakes | Riderever Triva Carbon; Rotors: Shimano CL700 Centerlock |
|---|
Cockpit & Contact Points
| Headset | FSA IS2 1-1/4, 45° x 45° / 1-3/8, 36° x 45° |
|---|---|
| Handlebar | Profile Design Bracket Riser Kit 30mm |
| Stem | Cervélo ST36 Alloy |
| Saddle | Cervélo Tri Saddle |
| Seatpost | Cervélo SP23 Carbon |
Wheels & Tires
| Wheels | Vision TC60 i23 |
|---|---|
| Front Tire | Vittoria Corsa N.EXT TLR G2.0 700x29c |
| Rear Tire | Vittoria Corsa N.EXT TLR G2.0 700x29c |
Size-specific frame data
Geometry
Manufacturer-published geometry normalized for consistent archival comparison. Effective top tube and reach remain separate measurements because they describe different aspects of fit.
| Measurement | 48 | 51 | 54 | 56 | 58 | 61 |
|---|---|---|---|---|---|---|
| Head tube | 87.8 mm | 101.7 mm | 118.4 mm | 137.3 mm | 158.3 mm | 177.2 mm |
| Head-tube angle | 71° | 72.5° | 72.5° | 72.5° | 72.5° | 72.5° |
| Seat-tube angle | 75° | 75° | 75° | 75° | 75° | 75° |
| Chainstay / rear center | 405 mm | 405 mm | 405 mm | 405 mm | 405 mm | 405 mm |
| Wheelbase | 973 mm | 974 mm | 993 mm | 1012 mm | 1030 mm | 1045 mm |
| Bottom-bracket drop | 80 mm | 80 mm | 80 mm | 80 mm | 80 mm | 80 mm |
| Reach | 378 mm | 395 mm | 409 mm | 422 mm | 434 mm | 443 mm |
| Stack | 494 mm | 515 mm | 531 mm | 549 mm | 569 mm | 587 mm |
| Standover height | 734 mm | 755 mm | 770 mm | 787 mm | 806 mm | 823 mm |
| Fork offset / rake | 52 mm | 43 mm | 43 mm | 43 mm | 43 mm | 43 mm |
| Front center | 581 mm | 583 mm | 602 mm | 620 mm | 638 mm | 653 mm |
| Trail | 62.1 mm | 62.1 mm | 62.1 mm | 62.1 mm | 62.1 mm | 62.1 mm |
| Wheel size | 700C | 700C | 700C | 700C | 700C | 700C |
Geometry source: Manufacturer HTML geometry table ↗ Measurements can vary by configuration, wheel size, or flip-chip position where noted by the manufacturer.
Geometry interpretation
What this geometry means
48 geometry
Riding position
The 494 mm stack is low relative to the 378 mm reach, giving the frame a performance-oriented, lower-front-end proportion with more potential for a stretched riding position. A 75° seat angle puts the rider relatively forward over the bottom bracket, shortening the effective seated reach compared with a more relaxed seat angle.
Handling tendencies
A 71° head angle combined with a 973 mm wheelbase points to more stability-oriented steering and chassis behavior. The longer the chassis and slacker the front end, the more the bike tends to favor composure over very quick direction changes. A 80 mm bottom-bracket drop places the rider relatively low between the wheels, which can add a settled cornering feel while reducing pedal clearance compared with a higher bottom bracket.
Archive context
Its bottom-bracket drop of 80 mm sits toward the deeper-drop end. Its wheelbase of 973 mm sits toward the shorter end. Its stack of 494 mm sits toward the lower end.
51 geometry
Riding position
The 515 mm stack is low relative to the 395 mm reach, giving the frame a performance-oriented, lower-front-end proportion with more potential for a stretched riding position. A 75° seat angle puts the rider relatively forward over the bottom bracket, shortening the effective seated reach compared with a more relaxed seat angle.
Handling tendencies
A 72.5° head angle combined with a 974 mm wheelbase points to moderate and balanced steering and chassis behavior. The longer the chassis and slacker the front end, the more the bike tends to favor composure over very quick direction changes. A 80 mm bottom-bracket drop places the rider relatively low between the wheels, which can add a settled cornering feel while reducing pedal clearance compared with a higher bottom bracket.
Archive context
Its reach of 395 mm sits toward the longer end. Its bottom-bracket drop of 80 mm sits toward the deeper-drop end. The head angle of 72.5° sits toward the steeper end.
54 geometry
Riding position
The 531 mm stack is low relative to the 409 mm reach, giving the frame a performance-oriented, lower-front-end proportion with more potential for a stretched riding position. A 75° seat angle puts the rider relatively forward over the bottom bracket, shortening the effective seated reach compared with a more relaxed seat angle.
Handling tendencies
A 72.5° head angle combined with a 993 mm wheelbase points to moderate and balanced steering and chassis behavior. The longer the chassis and slacker the front end, the more the bike tends to favor composure over very quick direction changes. A 80 mm bottom-bracket drop places the rider relatively low between the wheels, which can add a settled cornering feel while reducing pedal clearance compared with a higher bottom bracket.
Archive context
Its bottom-bracket drop of 80 mm sits toward the deeper-drop end. Its reach of 409 mm sits toward the longer end. The seat angle of 75° sits toward the steeper end.
56 geometry
Riding position
The 549 mm stack is low relative to the 422 mm reach, giving the frame a performance-oriented, lower-front-end proportion with more potential for a stretched riding position. A 75° seat angle puts the rider relatively forward over the bottom bracket, shortening the effective seated reach compared with a more relaxed seat angle.
Handling tendencies
A 72.5° head angle combined with a 1012 mm wheelbase points to moderate and balanced steering and chassis behavior. The longer the chassis and slacker the front end, the more the bike tends to favor composure over very quick direction changes. A 80 mm bottom-bracket drop places the rider relatively low between the wheels, which can add a settled cornering feel while reducing pedal clearance compared with a higher bottom bracket.
Archive context
Its bottom-bracket drop of 80 mm sits toward the deeper-drop end. Its reach of 422 mm sits toward the longer end. The chainstay of 405 mm sits toward the shorter rear-center end.
58 geometry
Riding position
The 569 mm stack is low relative to the 434 mm reach, giving the frame a performance-oriented, lower-front-end proportion with more potential for a stretched riding position. A 75° seat angle puts the rider relatively forward over the bottom bracket, shortening the effective seated reach compared with a more relaxed seat angle.
Handling tendencies
A 72.5° head angle combined with a 1030 mm wheelbase points to moderate and balanced steering and chassis behavior. The longer the chassis and slacker the front end, the more the bike tends to favor composure over very quick direction changes. A 80 mm bottom-bracket drop places the rider relatively low between the wheels, which can add a settled cornering feel while reducing pedal clearance compared with a higher bottom bracket.
Archive context
Its trail of 62.1 mm sits toward the higher-trail end. Its bottom-bracket drop of 80 mm sits toward the deeper-drop end. The seat angle of 75° sits toward the steeper end.
61 geometry
Riding position
The 587 mm stack is low relative to the 443 mm reach, giving the frame a performance-oriented, lower-front-end proportion with more potential for a stretched riding position. A 75° seat angle puts the rider relatively forward over the bottom bracket, shortening the effective seated reach compared with a more relaxed seat angle.
Handling tendencies
A 72.5° head angle combined with a 1045 mm wheelbase points to moderate and balanced steering and chassis behavior. The longer the chassis and slacker the front end, the more the bike tends to favor composure over very quick direction changes. A 80 mm bottom-bracket drop places the rider relatively low between the wheels, which can add a settled cornering feel while reducing pedal clearance compared with a higher bottom bracket.
Archive context
The seat angle of 75° sits toward the steeper end. Its bottom-bracket drop of 80 mm sits toward the deeper-drop end. The chainstay of 405 mm sits toward the shorter rear-center end.
Across the size range
From 48 to 61, reach grows by 65 mm and stack by 93 mm, showing how the frame becomes both longer and taller through the published size range. The rear center stays essentially constant at about 405 mm across sizes, so most of the wheelbase growth happens in the front half of the bike rather than by lengthening the rear triangle.
Geometry describes frame proportions and likely tendencies, not a ride test. Rider proportions, cockpit setup, tires, suspension settings, wheel configuration, and component choices can materially change how a bicycle fits and feels.
Gallery
Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.