bike geometry
R5-CX 2026
Compare size-specific bike geometry, including reach, stack, angles, wheelbase and the measurements that influence fit and handling.
Cervelo › R5-CX › Standard › R5-CX
R5-CX geometry measurements
Choose the recorded size and configuration. Geometry figures can change by size; RideDNA does not collapse those values into one misleading answer.
What is the reach of the R5-CX?
Reach is the horizontal distance from the bottom bracket to the top of the head tube. Also searched as frame reach.
| Configuration | Size | Reach | Source |
|---|---|---|---|
| R5-CX geometry | 51 | 372.8 mm | RideDNA-derived |
| R5-CX geometry | 54 | 381.1 mm | RideDNA-derived |
| R5-CX geometry | 56 | 390.1 mm | RideDNA-derived |
| R5-CX geometry | 58 | 396.7 mm | RideDNA-derived |
What is the stack of the R5-CX?
Stack is the vertical distance from the bottom bracket to the top of the head tube. Also searched as frame stack.
| Configuration | Size | Stack | Source |
|---|---|---|---|
| R5-CX geometry | 51 | 520.1 mm | RideDNA-derived |
| R5-CX geometry | 54 | 540 mm | RideDNA-derived |
| R5-CX geometry | 56 | 560 mm | RideDNA-derived |
| R5-CX geometry | 58 | 579.9 mm | RideDNA-derived |
What is the effective top tube of the R5-CX?
Effective top tube is the horizontal distance between the head-tube and seat-tube centerlines. Also searched as ETT, virtual top tube, horizontal top tube.
| Configuration | Size | Effective top tube | Source |
|---|---|---|---|
| R5-CX geometry | 51 | 517 mm | RideDNA-derived |
| R5-CX geometry | 54 | 536 mm | RideDNA-derived |
| R5-CX geometry | 56 | 556 mm | RideDNA-derived |
| R5-CX geometry | 58 | 574 mm | RideDNA-derived |
What is the head tube angle of the R5-CX?
Head tube angle describes the steering-axis angle relative to the ground. Also searched as HTA, head angle, steering angle.
| Configuration | Size | Head tube angle | Source |
|---|---|---|---|
| R5-CX geometry | 51 | 71.5 ° | RideDNA-derived |
| R5-CX geometry | 54 | 71.5 ° | RideDNA-derived |
| R5-CX geometry | 56 | 71.5 ° | RideDNA-derived |
| R5-CX geometry | 58 | 72 ° | RideDNA-derived |
What is the seat tube angle of the R5-CX?
Seat tube angle describes the seat-tube angle relative to the ground. Also searched as STA, seat angle, effective seat angle.
| Configuration | Size | Seat tube angle | Source |
|---|---|---|---|
| R5-CX geometry | 51 | 74.5 ° | RideDNA-derived |
| R5-CX geometry | 54 | 74 ° | RideDNA-derived |
| R5-CX geometry | 56 | 73.5 ° | RideDNA-derived |
| R5-CX geometry | 58 | 73 ° | RideDNA-derived |
What is the wheelbase of the R5-CX?
Wheelbase is the distance between the front and rear wheel axles. Also searched as axle-to-axle length.
| Configuration | Size | Wheelbase | Source |
|---|---|---|---|
| R5-CX geometry | 51 | 999.8 mm | RideDNA-derived |
| R5-CX geometry | 54 | 1014.8 mm | RideDNA-derived |
| R5-CX geometry | 56 | 1030.5 mm | RideDNA-derived |
| R5-CX geometry | 58 | 1035.4 mm | RideDNA-derived |
What is the chainstay length of the R5-CX?
Chainstay length, also called rear center, is the distance from the bottom bracket to the rear axle. Also searched as Chainstay, rear center, rear centre.
| Configuration | Size | Chainstay length | Source |
|---|---|---|---|
| R5-CX geometry | 51 | 420.3 mm | RideDNA-derived |
| R5-CX geometry | 54 | 420.3 mm | RideDNA-derived |
| R5-CX geometry | 56 | 420.3 mm | RideDNA-derived |
| R5-CX geometry | 58 | 420.3 mm | RideDNA-derived |
What is the bottom bracket height of the R5-CX?
Bottom bracket height is the vertical distance from the ground to the bottom bracket. Also searched as BB height.
| Configuration | Size | Bottom bracket height | Source |
|---|---|---|---|
| R5-CX geometry | 51 | 281 mm | RideDNA-derived |
| R5-CX geometry | 54 | 281 mm | RideDNA-derived |
| R5-CX geometry | 56 | 281 mm | RideDNA-derived |
| R5-CX geometry | 58 | 281 mm | RideDNA-derived |
What is the front center of the R5-CX?
Front center is the distance from the bottom bracket to the front wheel axle. Also searched as front centre.
| Configuration | Size | Front center | Source |
|---|---|---|---|
| R5-CX geometry | 51 | 582.9 mm | RideDNA-derived |
| R5-CX geometry | 54 | 597.9 mm | RideDNA-derived |
| R5-CX geometry | 56 | 613.4 mm | RideDNA-derived |
| R5-CX geometry | 58 | 618.3 mm | RideDNA-derived |
What is the fork offset of the R5-CX?
Fork offset is the perpendicular distance between the steering axis and the front axle. Also searched as fork rake, rake.
| Configuration | Size | Fork offset | Source |
|---|---|---|---|
| R5-CX geometry | 51 | 51 mm | RideDNA-derived |
| R5-CX geometry | 54 | 51 mm | RideDNA-derived |
| R5-CX geometry | 56 | 51 mm | RideDNA-derived |
| R5-CX geometry | 58 | 48 mm | RideDNA-derived |
What is the head tube length of the R5-CX?
Head tube length is the measured length of the frame's head tube. Also searched as Head tube, head tube.
| Configuration | Size | Head tube length | Source |
|---|---|---|---|
| R5-CX geometry | 51 | 97 mm | RideDNA-derived |
| R5-CX geometry | 54 | 118 mm | RideDNA-derived |
| R5-CX geometry | 56 | 139 mm | RideDNA-derived |
| R5-CX geometry | 58 | 157 mm | RideDNA-derived |
What is the seat tube length of the R5-CX?
Seat tube length is the recorded length of the frame's seat tube; measurement conventions can differ by manufacturer. Also searched as Seat tube, seat tube, frame size.
| Configuration | Size | Seat tube length | Source |
|---|---|---|---|
| R5-CX geometry | 51 | 510 mm | RideDNA-derived |
| R5-CX geometry | 54 | 540 mm | RideDNA-derived |
| R5-CX geometry | 56 | 560 mm | RideDNA-derived |
| R5-CX geometry | 58 | 580 mm | RideDNA-derived |
What is the standover height of the R5-CX?
Standover height is the ground-to-top-tube height at the manufacturer's stated measurement point. Also searched as Standover, stand over height, standover clearance.
| Configuration | Size | Standover height | Source |
|---|---|---|---|
| R5-CX geometry | 51 | 775 mm | RideDNA-derived |
| R5-CX geometry | 54 | 789 mm | RideDNA-derived |
| R5-CX geometry | 56 | 803 mm | RideDNA-derived |
| R5-CX geometry | 58 | 820 mm | RideDNA-derived |
What is the fork length of the R5-CX?
Fork length is the axle-to-crown distance recorded for the fork. Also searched as axle to crown, A2C.
| Configuration | Size | Fork length | Source |
|---|---|---|---|
| R5-CX geometry | 51 | 402.1 mm | RideDNA-derived |
| R5-CX geometry | 54 | 402.1 mm | RideDNA-derived |
| R5-CX geometry | 56 | 402.1 mm | RideDNA-derived |
| R5-CX geometry | 58 | 402.1 mm | RideDNA-derived |
What is the wheel flop of the R5-CX?
Wheel flop is a calculated steering-geometry value based on trail and head tube angle. Also searched as flop.
| Configuration | Size | Wheel flop | Source |
|---|---|---|---|
| R5-CX geometry | 51 | 18.5 mm | RideDNA-derived |
| R5-CX geometry | 54 | 18.5 mm | RideDNA-derived |
| R5-CX geometry | 56 | 18.5 mm | RideDNA-derived |
| R5-CX geometry | 58 | 18 mm | RideDNA-derived |
Geometry
Available sizes: 51, 54, 56, 58.
R5-CX geometry
Jump to size: 51 · 54 · 56 · 58
| Size | Reach | Stack | ETT | HTA | STA | Trail | Wheelbase | Chainstay | BB drop | BB height | Front center | Fork offset | Head tube | Seat tube | Standover | Fork length | Wheel flop | Max tire |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 51 | 372.8 mm | 520.1 mm | 517 mm | 71.5 ° | 74.5 ° | — | 999.8 mm | 420.3 mm | — | 281 mm | 582.9 mm | 51 mm | 97 mm | 510 mm | 775 mm | 402.1 mm | 18.5 mm | — |
| 54 | 381.1 mm | 540 mm | 536 mm | 71.5 ° | 74 ° | — | 1014.8 mm | 420.3 mm | — | 281 mm | 597.9 mm | 51 mm | 118 mm | 540 mm | 789 mm | 402.1 mm | 18.5 mm | — |
| 56 | 390.1 mm | 560 mm | 556 mm | 71.5 ° | 73.5 ° | — | 1030.5 mm | 420.3 mm | — | 281 mm | 613.4 mm | 51 mm | 139 mm | 560 mm | 803 mm | 402.1 mm | 18.5 mm | — |
| 58 | 396.7 mm | 579.9 mm | 574 mm | 72 ° | 73 ° | — | 1035.4 mm | 420.3 mm | — | 281 mm | 618.3 mm | 48 mm | 157 mm | 580 mm | 820 mm | 402.1 mm | 18 mm | — |
Length measurements are in millimeters; HTA and STA are in degrees. ETT means effective top tube.
Size-to-size changes
Differences are calculated from the recorded values; they are not fit recommendations.
- R5-CX geometry: 51 → 54 — Reach +8.3 mm, Stack +19.9 mm, ETT +19 mm, HTA +0 °, STA -0.5 °, Wheelbase +15 mm, Chainstay +0 mm, BB height +0 mm, Front center +15 mm, Fork offset +0 mm, Head tube +21 mm, Seat tube +30 mm, Standover +14 mm, Fork length +0 mm, Wheel flop +0 mm
- R5-CX geometry: 54 → 56 — Reach +9 mm, Stack +20 mm, ETT +20 mm, HTA +0 °, STA -0.5 °, Wheelbase +15.7 mm, Chainstay +0 mm, BB height +0 mm, Front center +15.5 mm, Fork offset +0 mm, Head tube +21 mm, Seat tube +20 mm, Standover +14 mm, Fork length +0 mm, Wheel flop +0 mm
- R5-CX geometry: 56 → 58 — Reach +6.6 mm, Stack +19.9 mm, ETT +18 mm, HTA +0.5 °, STA -0.5 °, Wheelbase +4.9 mm, Chainstay +0 mm, BB height +0 mm, Front center +4.9 mm, Fork offset -3 mm, Head tube +18 mm, Seat tube +20 mm, Standover +17 mm, Fork length +0 mm, Wheel flop -0.5 mm
RideDNA-derived values
These deterministic calculations use the recorded manufacturer inputs above. They are separate from manufacturer facts and are not fit recommendations.
- R5-CX geometry size 51 stack Reach Ratio: 1.4
- R5-CX geometry size 54 stack Reach Ratio: 1.42
- R5-CX geometry size 56 stack Reach Ratio: 1.44
- R5-CX geometry size 58 stack Reach Ratio: 1.46
Bike details
- competitor Model Id
- 03b935f3-5305-41cc-9873-e7307831c8ed