bike geometry
URS 2026
Compare size-specific bike geometry, including reach, stack, angles, wheelbase and the measurements that influence fit and handling.
BMC › URS › Standard › URS
URS 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 URS?
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 |
|---|---|---|---|
| URS geometry | S | 399.6 mm | RideDNA-derived |
| URS geometry | XS | 389.6 mm | RideDNA-derived |
| URS geometry | M | 410.1 mm | RideDNA-derived |
| URS geometry | L | 419.8 mm | RideDNA-derived |
| URS geometry | XL | 429.5 mm | RideDNA-derived |
What is the stack of the URS?
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 |
|---|---|---|---|
| URS geometry | S | 560.3 mm | RideDNA-derived |
| URS geometry | XS | 560.3 mm | RideDNA-derived |
| URS geometry | M | 580.1 mm | RideDNA-derived |
| URS geometry | L | 610.1 mm | RideDNA-derived |
| URS geometry | XL | 640 mm | RideDNA-derived |
What is the effective top tube of the URS?
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 |
|---|---|---|---|
| URS geometry | S | 555 mm | RideDNA-derived |
| URS geometry | XS | 545 mm | RideDNA-derived |
| URS geometry | M | 571 mm | RideDNA-derived |
| URS geometry | L | 589 mm | RideDNA-derived |
| URS geometry | XL | 607 mm | RideDNA-derived |
What is the head tube angle of the URS?
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 |
|---|---|---|---|
| URS geometry | S | 69 ° | RideDNA-derived |
| URS geometry | XS | 69 ° | RideDNA-derived |
| URS geometry | M | 69.5 ° | RideDNA-derived |
| URS geometry | L | 69.5 ° | RideDNA-derived |
| URS geometry | XL | 69.5 ° | RideDNA-derived |
What is the seat tube angle of the URS?
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 |
|---|---|---|---|
| URS geometry | S | 74.5 ° | RideDNA-derived |
| URS geometry | XS | 74.5 ° | RideDNA-derived |
| URS geometry | M | 74.5 ° | RideDNA-derived |
| URS geometry | L | 74.5 ° | RideDNA-derived |
| URS geometry | XL | 74.5 ° | RideDNA-derived |
What is the wheelbase of the URS?
Wheelbase is the distance between the front and rear wheel axles. Also searched as axle-to-axle length.
| Configuration | Size | Wheelbase | Source |
|---|---|---|---|
| URS geometry | S | 1062.3 mm | RideDNA-derived |
| URS geometry | XS | 1052.3 mm | RideDNA-derived |
| URS geometry | M | 1069.9 mm | RideDNA-derived |
| URS geometry | L | 1090.8 mm | RideDNA-derived |
| URS geometry | XL | 1111.7 mm | RideDNA-derived |
What is the chainstay length of the URS?
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 |
|---|---|---|---|
| URS geometry | S | 423.2 mm | RideDNA-derived |
| URS geometry | XS | 423.2 mm | RideDNA-derived |
| URS geometry | M | 423.2 mm | RideDNA-derived |
| URS geometry | L | 423.2 mm | RideDNA-derived |
| URS geometry | XL | 423.2 mm | RideDNA-derived |
What is the bottom bracket height of the URS?
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 |
|---|---|---|---|
| URS geometry | S | 280 mm | RideDNA-derived |
| URS geometry | XS | 280 mm | RideDNA-derived |
| URS geometry | M | 280 mm | RideDNA-derived |
| URS geometry | L | 280 mm | RideDNA-derived |
| URS geometry | XL | 280 mm | RideDNA-derived |
What is the front center of the URS?
Front center is the distance from the bottom bracket to the front wheel axle. Also searched as front centre.
| Configuration | Size | Front center | Source |
|---|---|---|---|
| URS geometry | S | 643.6 mm | RideDNA-derived |
| URS geometry | XS | 633.7 mm | RideDNA-derived |
| URS geometry | M | 651.1 mm | RideDNA-derived |
| URS geometry | L | 671.8 mm | RideDNA-derived |
| URS geometry | XL | 692.6 mm | RideDNA-derived |
What is the fork offset of the URS?
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 |
|---|---|---|---|
| URS geometry | S | 50 mm | RideDNA-derived |
| URS geometry | XS | 50 mm | RideDNA-derived |
| URS geometry | M | 45 mm | RideDNA-derived |
| URS geometry | L | 45 mm | RideDNA-derived |
| URS geometry | XL | 45 mm | RideDNA-derived |
What is the head tube length of the URS?
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 |
|---|---|---|---|
| URS geometry | S | 133 mm | RideDNA-derived |
| URS geometry | XS | 133 mm | RideDNA-derived |
| URS geometry | M | 140 mm | RideDNA-derived |
| URS geometry | L | 172 mm | RideDNA-derived |
| URS geometry | XL | 204 mm | RideDNA-derived |
What is the seat tube length of the URS?
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 |
|---|---|---|---|
| URS geometry | S | 445 mm | RideDNA-derived |
| URS geometry | XS | 430 mm | RideDNA-derived |
| URS geometry | M | 475 mm | RideDNA-derived |
| URS geometry | L | 505 mm | RideDNA-derived |
| URS geometry | XL | 540 mm | RideDNA-derived |
What is the standover height of the URS?
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 |
|---|---|---|---|
| URS geometry | S | 748.1 mm | RideDNA-derived |
| URS geometry | XS | 740.9 mm | RideDNA-derived |
| URS geometry | M | 772.4 mm | RideDNA-derived |
| URS geometry | L | 801.9 mm | RideDNA-derived |
| URS geometry | XL | 833.7 mm | RideDNA-derived |
What is the fork length of the URS?
Fork length is the axle-to-crown distance recorded for the fork. Also searched as axle to crown, A2C.
| Configuration | Size | Fork length | Source |
|---|---|---|---|
| URS geometry | S | 405 mm | RideDNA-derived |
| URS geometry | XS | 405 mm | RideDNA-derived |
| URS geometry | M | 415 mm | RideDNA-derived |
| URS geometry | L | 415 mm | RideDNA-derived |
| URS geometry | XL | 415 mm | RideDNA-derived |
What is the wheel flop of the URS?
Wheel flop is a calculated steering-geometry value based on trail and head tube angle. Also searched as flop.
| Configuration | Size | Wheel flop | Source |
|---|---|---|---|
| URS geometry | S | 27.8 mm | RideDNA-derived |
| URS geometry | XS | 27.8 mm | RideDNA-derived |
| URS geometry | M | 27.9 mm | RideDNA-derived |
| URS geometry | L | 27.9 mm | RideDNA-derived |
| URS geometry | XL | 27.9 mm | RideDNA-derived |
Geometry
Available sizes: S, XS, M, L, XL.
URS geometry
Jump to size: XS · S · M · L · XL
| 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 | 389.6 mm | 560.3 mm | 545 mm | 69 ° | 74.5 ° | — | 1052.3 mm | 423.2 mm | — | 280 mm | 633.7 mm | 50 mm | 133 mm | 430 mm | 740.9 mm | 405 mm | 27.8 mm | — |
| S | 399.6 mm | 560.3 mm | 555 mm | 69 ° | 74.5 ° | — | 1062.3 mm | 423.2 mm | — | 280 mm | 643.6 mm | 50 mm | 133 mm | 445 mm | 748.1 mm | 405 mm | 27.8 mm | — |
| M | 410.1 mm | 580.1 mm | 571 mm | 69.5 ° | 74.5 ° | — | 1069.9 mm | 423.2 mm | — | 280 mm | 651.1 mm | 45 mm | 140 mm | 475 mm | 772.4 mm | 415 mm | 27.9 mm | — |
| L | 419.8 mm | 610.1 mm | 589 mm | 69.5 ° | 74.5 ° | — | 1090.8 mm | 423.2 mm | — | 280 mm | 671.8 mm | 45 mm | 172 mm | 505 mm | 801.9 mm | 415 mm | 27.9 mm | — |
| XL | 429.5 mm | 640 mm | 607 mm | 69.5 ° | 74.5 ° | — | 1111.7 mm | 423.2 mm | — | 280 mm | 692.6 mm | 45 mm | 204 mm | 540 mm | 833.7 mm | 415 mm | 27.9 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.
- URS geometry: XS → S — Reach +10 mm, Stack +0 mm, ETT +10 mm, HTA +0 °, STA +0 °, Wheelbase +10 mm, Chainstay +0 mm, BB height +0 mm, Front center +9.9 mm, Fork offset +0 mm, Head tube +0 mm, Seat tube +15 mm, Standover +7.2 mm, Fork length +0 mm, Wheel flop +0 mm
- URS geometry: S → M — Reach +10.5 mm, Stack +19.8 mm, ETT +16 mm, HTA +0.5 °, STA +0 °, Wheelbase +7.6 mm, Chainstay +0 mm, BB height +0 mm, Front center +7.5 mm, Fork offset -5 mm, Head tube +7 mm, Seat tube +30 mm, Standover +24.3 mm, Fork length +10 mm, Wheel flop +0.1 mm
- URS geometry: M → L — Reach +9.7 mm, Stack +30 mm, ETT +18 mm, HTA +0 °, STA +0 °, Wheelbase +20.9 mm, Chainstay +0 mm, BB height +0 mm, Front center +20.7 mm, Fork offset +0 mm, Head tube +32 mm, Seat tube +30 mm, Standover +29.5 mm, Fork length +0 mm, Wheel flop +0 mm
- URS geometry: L → XL — Reach +9.7 mm, Stack +29.9 mm, ETT +18 mm, HTA +0 °, STA +0 °, Wheelbase +20.9 mm, Chainstay +0 mm, BB height +0 mm, Front center +20.8 mm, Fork offset +0 mm, Head tube +32 mm, Seat tube +35 mm, Standover +31.8 mm, Fork length +0 mm, Wheel flop +0 mm
RideDNA-derived values
These deterministic calculations use the recorded manufacturer inputs above. They are separate from manufacturer facts and are not fit recommendations.
- URS geometry size S stack Reach Ratio: 1.4
- URS geometry size XS stack Reach Ratio: 1.44
- URS geometry size M stack Reach Ratio: 1.41
- URS geometry size L stack Reach Ratio: 1.45
- URS geometry size XL stack Reach Ratio: 1.49
Bike details
- competitor Model Id
- de756435-4266-401f-8848-c4def27e8dc4