bike geometry
Ribble ULTRA-RACE 2026
Compare size-specific bike geometry, including reach, stack, angles, wheelbase and the measurements that influence fit and handling.
Ribble › ULTRA-RACE › Standard › ULTRA-RACE
ULTRA-RACE 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 Ribble ULTRA-RACE 2026?
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 |
|---|---|---|---|
| ULTRA-RACE geometry | M | 386.9 mm | RideDNA-derived |
| ULTRA-RACE geometry | L | 398.6 mm | RideDNA-derived |
| ULTRA-RACE geometry | XXS | 369.9 mm | RideDNA-derived |
| ULTRA-RACE geometry | XL | 404.1 mm | RideDNA-derived |
| ULTRA-RACE geometry | S | 383.1 mm | RideDNA-derived |
| ULTRA-RACE geometry | XS | 378.9 mm | RideDNA-derived |
What is the stack of the Ribble ULTRA-RACE 2026?
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 |
|---|---|---|---|
| ULTRA-RACE geometry | M | 550.6 mm | RideDNA-derived |
| ULTRA-RACE geometry | L | 571.4 mm | RideDNA-derived |
| ULTRA-RACE geometry | XXS | 504.1 mm | RideDNA-derived |
| ULTRA-RACE geometry | XL | 591.6 mm | RideDNA-derived |
| ULTRA-RACE geometry | S | 529.8 mm | RideDNA-derived |
| ULTRA-RACE geometry | XS | 508.9 mm | RideDNA-derived |
What is the effective top tube of the Ribble ULTRA-RACE 2026?
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 |
|---|---|---|---|
| ULTRA-RACE geometry | M | 550 mm | RideDNA-derived |
| ULTRA-RACE geometry | L | 570 mm | RideDNA-derived |
| ULTRA-RACE geometry | XXS | 505 mm | RideDNA-derived |
| ULTRA-RACE geometry | XL | 585 mm | RideDNA-derived |
| ULTRA-RACE geometry | S | 535 mm | RideDNA-derived |
| ULTRA-RACE geometry | XS | 520 mm | RideDNA-derived |
What is the head tube angle of the Ribble ULTRA-RACE 2026?
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 |
|---|---|---|---|
| ULTRA-RACE geometry | M | 72.5 ° | RideDNA-derived |
| ULTRA-RACE geometry | L | 73 ° | RideDNA-derived |
| ULTRA-RACE geometry | XXS | 71 ° | RideDNA-derived |
| ULTRA-RACE geometry | XL | 73.3 ° | RideDNA-derived |
| ULTRA-RACE geometry | S | 72 ° | RideDNA-derived |
| ULTRA-RACE geometry | XS | 71 ° | RideDNA-derived |
What is the seat tube angle of the Ribble ULTRA-RACE 2026?
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 |
|---|---|---|---|
| ULTRA-RACE geometry | M | 73.5 ° | RideDNA-derived |
| ULTRA-RACE geometry | L | 73.3 ° | RideDNA-derived |
| ULTRA-RACE geometry | XXS | 75 ° | RideDNA-derived |
| ULTRA-RACE geometry | XL | 73 ° | RideDNA-derived |
| ULTRA-RACE geometry | S | 74 ° | RideDNA-derived |
| ULTRA-RACE geometry | XS | 74.5 ° | RideDNA-derived |
What is the wheelbase of the Ribble ULTRA-RACE 2026?
Wheelbase is the distance between the front and rear wheel axles. Also searched as axle-to-axle length.
| Configuration | Size | Wheelbase | Source |
|---|---|---|---|
| ULTRA-RACE geometry | M | 990.6 mm | RideDNA-derived |
| ULTRA-RACE geometry | L | 1003.9 mm | RideDNA-derived |
| ULTRA-RACE geometry | XXS | 982.6 mm | RideDNA-derived |
| ULTRA-RACE geometry | XL | 1012.5 mm | RideDNA-derived |
| ULTRA-RACE geometry | S | 984.8 mm | RideDNA-derived |
| ULTRA-RACE geometry | XS | 993.2 mm | RideDNA-derived |
What is the chainstay length of the Ribble ULTRA-RACE 2026?
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 |
|---|---|---|---|
| ULTRA-RACE geometry | M | 404.3 mm | RideDNA-derived |
| ULTRA-RACE geometry | L | 404.3 mm | RideDNA-derived |
| ULTRA-RACE geometry | XXS | 404.3 mm | RideDNA-derived |
| ULTRA-RACE geometry | XL | 404.3 mm | RideDNA-derived |
| ULTRA-RACE geometry | S | 404.3 mm | RideDNA-derived |
| ULTRA-RACE geometry | XS | 404.3 mm | RideDNA-derived |
What is the bottom bracket height of the Ribble ULTRA-RACE 2026?
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 |
|---|---|---|---|
| ULTRA-RACE geometry | M | 273 mm | RideDNA-derived |
| ULTRA-RACE geometry | L | 273 mm | RideDNA-derived |
| ULTRA-RACE geometry | XXS | 273 mm | RideDNA-derived |
| ULTRA-RACE geometry | XL | 273 mm | RideDNA-derived |
| ULTRA-RACE geometry | S | 273 mm | RideDNA-derived |
| ULTRA-RACE geometry | XS | 273 mm | RideDNA-derived |
What is the front center of the Ribble ULTRA-RACE 2026?
Front center is the distance from the bottom bracket to the front wheel axle. Also searched as front centre.
| Configuration | Size | Front center | Source |
|---|---|---|---|
| ULTRA-RACE geometry | M | 590.2 mm | RideDNA-derived |
| ULTRA-RACE geometry | L | 603.4 mm | RideDNA-derived |
| ULTRA-RACE geometry | XXS | 582.2 mm | RideDNA-derived |
| ULTRA-RACE geometry | XL | 612 mm | RideDNA-derived |
| ULTRA-RACE geometry | S | 584.4 mm | RideDNA-derived |
| ULTRA-RACE geometry | XS | 592.8 mm | RideDNA-derived |
What is the fork offset of the Ribble ULTRA-RACE 2026?
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 |
|---|---|---|---|
| ULTRA-RACE geometry | M | 45 mm | RideDNA-derived |
| ULTRA-RACE geometry | L | 45 mm | RideDNA-derived |
| ULTRA-RACE geometry | XXS | 55 mm | RideDNA-derived |
| ULTRA-RACE geometry | XL | 45 mm | RideDNA-derived |
| ULTRA-RACE geometry | S | 45 mm | RideDNA-derived |
| ULTRA-RACE geometry | XS | 55 mm | RideDNA-derived |
What is the head tube length of the Ribble ULTRA-RACE 2026?
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 |
|---|---|---|---|
| ULTRA-RACE geometry | M | 150 mm | RideDNA-derived |
| ULTRA-RACE geometry | L | 170 mm | RideDNA-derived |
| ULTRA-RACE geometry | XXS | 110 mm | RideDNA-derived |
| ULTRA-RACE geometry | XL | 190 mm | RideDNA-derived |
| ULTRA-RACE geometry | S | 130 mm | RideDNA-derived |
| ULTRA-RACE geometry | XS | 115 mm | RideDNA-derived |
What is the seat tube length of the Ribble ULTRA-RACE 2026?
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 |
|---|---|---|---|
| ULTRA-RACE geometry | M | 520 mm | RideDNA-derived |
| ULTRA-RACE geometry | L | 540 mm | RideDNA-derived |
| ULTRA-RACE geometry | XXS | 420 mm | RideDNA-derived |
| ULTRA-RACE geometry | XL | 560 mm | RideDNA-derived |
| ULTRA-RACE geometry | S | 500 mm | RideDNA-derived |
| ULTRA-RACE geometry | XS | 470 mm | RideDNA-derived |
What is the standover height of the Ribble ULTRA-RACE 2026?
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 |
|---|---|---|---|
| ULTRA-RACE geometry | M | 771.2 mm | RideDNA-derived |
| ULTRA-RACE geometry | L | 791 mm | RideDNA-derived |
| ULTRA-RACE geometry | XXS | 701.3 mm | RideDNA-derived |
| ULTRA-RACE geometry | XL | 810.3 mm | RideDNA-derived |
| ULTRA-RACE geometry | S | 751.8 mm | RideDNA-derived |
| ULTRA-RACE geometry | XS | 727.4 mm | RideDNA-derived |
What is the fork length of the Ribble ULTRA-RACE 2026?
Fork length is the axle-to-crown distance recorded for the fork. Also searched as axle to crown, A2C.
| Configuration | Size | Fork length | Source |
|---|---|---|---|
| ULTRA-RACE geometry | M | 370.2 mm | RideDNA-derived |
| ULTRA-RACE geometry | L | 370.2 mm | RideDNA-derived |
| ULTRA-RACE geometry | XXS | 370.2 mm | RideDNA-derived |
| ULTRA-RACE geometry | XL | 370.2 mm | RideDNA-derived |
| ULTRA-RACE geometry | S | 370.2 mm | RideDNA-derived |
| ULTRA-RACE geometry | XS | 370.2 mm | RideDNA-derived |
What is the wheel flop of the Ribble ULTRA-RACE 2026?
Wheel flop is a calculated steering-geometry value based on trail and head tube angle. Also searched as flop.
| Configuration | Size | Wheel flop | Source |
|---|---|---|---|
| ULTRA-RACE geometry | M | 17.3 mm | RideDNA-derived |
| ULTRA-RACE geometry | L | 16 mm | RideDNA-derived |
| ULTRA-RACE geometry | XXS | 18.2 mm | RideDNA-derived |
| ULTRA-RACE geometry | XL | 15.2 mm | RideDNA-derived |
| ULTRA-RACE geometry | S | 18.7 mm | RideDNA-derived |
| ULTRA-RACE geometry | XS | 18.2 mm | RideDNA-derived |
Geometry
Available sizes: M, L, XXS, XL, S, XS.
ULTRA-RACE geometry
Jump to size: XS · S · M · L · XL · XXS
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| XS | 378.9 mm | 508.9 mm | 520 mm | 71 ° | 74.5 ° | — | 993.2 mm | 404.3 mm | — | 273 mm | 592.8 mm | 55 mm | 115 mm | 470 mm | 727.4 mm | 370.2 mm | 18.2 mm | — |
| S | 383.1 mm | 529.8 mm | 535 mm | 72 ° | 74 ° | — | 984.8 mm | 404.3 mm | — | 273 mm | 584.4 mm | 45 mm | 130 mm | 500 mm | 751.8 mm | 370.2 mm | 18.7 mm | — |
| M | 386.9 mm | 550.6 mm | 550 mm | 72.5 ° | 73.5 ° | — | 990.6 mm | 404.3 mm | — | 273 mm | 590.2 mm | 45 mm | 150 mm | 520 mm | 771.2 mm | 370.2 mm | 17.3 mm | — |
| L | 398.6 mm | 571.4 mm | 570 mm | 73 ° | 73.3 ° | — | 1003.9 mm | 404.3 mm | — | 273 mm | 603.4 mm | 45 mm | 170 mm | 540 mm | 791 mm | 370.2 mm | 16 mm | — |
| XL | 404.1 mm | 591.6 mm | 585 mm | 73.3 ° | 73 ° | — | 1012.5 mm | 404.3 mm | — | 273 mm | 612 mm | 45 mm | 190 mm | 560 mm | 810.3 mm | 370.2 mm | 15.2 mm | — |
| XXS | 369.9 mm | 504.1 mm | 505 mm | 71 ° | 75 ° | — | 982.6 mm | 404.3 mm | — | 273 mm | 582.2 mm | 55 mm | 110 mm | 420 mm | 701.3 mm | 370.2 mm | 18.2 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.
- ULTRA-RACE geometry: XS → S — Reach +4.2 mm, Stack +20.9 mm, ETT +15 mm, HTA +1 °, STA -0.5 °, Wheelbase -8.4 mm, Chainstay +0 mm, BB height +0 mm, Front center -8.4 mm, Fork offset -10 mm, Head tube +15 mm, Seat tube +30 mm, Standover +24.4 mm, Fork length +0 mm, Wheel flop +0.5 mm
- ULTRA-RACE geometry: S → M — Reach +3.8 mm, Stack +20.8 mm, ETT +15 mm, HTA +0.5 °, STA -0.5 °, Wheelbase +5.8 mm, Chainstay +0 mm, BB height +0 mm, Front center +5.8 mm, Fork offset +0 mm, Head tube +20 mm, Seat tube +20 mm, Standover +19.4 mm, Fork length +0 mm, Wheel flop -1.4 mm
- ULTRA-RACE geometry: M → L — Reach +11.7 mm, Stack +20.8 mm, ETT +20 mm, HTA +0.5 °, STA -0.2 °, Wheelbase +13.3 mm, Chainstay +0 mm, BB height +0 mm, Front center +13.2 mm, Fork offset +0 mm, Head tube +20 mm, Seat tube +20 mm, Standover +19.8 mm, Fork length +0 mm, Wheel flop -1.3 mm
- ULTRA-RACE geometry: L → XL — Reach +5.5 mm, Stack +20.2 mm, ETT +15 mm, HTA +0.3 °, STA -0.3 °, Wheelbase +8.6 mm, Chainstay +0 mm, BB height +0 mm, Front center +8.6 mm, Fork offset +0 mm, Head tube +20 mm, Seat tube +20 mm, Standover +19.3 mm, Fork length +0 mm, Wheel flop -0.8 mm
- ULTRA-RACE geometry: XL → XXS — Reach -34.2 mm, Stack -87.5 mm, ETT -80 mm, HTA -2.3 °, STA +2 °, Wheelbase -29.9 mm, Chainstay +0 mm, BB height +0 mm, Front center -29.8 mm, Fork offset +10 mm, Head tube -80 mm, Seat tube -140 mm, Standover -109 mm, Fork length +0 mm, Wheel flop +3 mm
RideDNA-derived values
These deterministic calculations use the recorded inputs above. They are separate from recorded facts and are not fit recommendations.
- ULTRA-RACE geometry size M stack Reach Ratio: 1.42
- ULTRA-RACE geometry size L stack Reach Ratio: 1.43
- ULTRA-RACE geometry size XXS stack Reach Ratio: 1.36
- ULTRA-RACE geometry size XL stack Reach Ratio: 1.46
- ULTRA-RACE geometry size S stack Reach Ratio: 1.38
- ULTRA-RACE geometry size XS stack Reach Ratio: 1.34
Bike details
- competitor Model Id
- 7efcab33-9218-4f95-971f-a85f5bab4dd5