Geometry comparison

Ridley Noah Fast 3.0 2026 vs Ridley ASTR RS 2026

Compare recorded measurements by configuration and size, with provenance and missing values kept visible.

Ridley Noah Fast 3.0 2026

Geometry

Available sizes: M, XXS, XS, S, L.

Noah Fast 3.0 geometry

Jump to size: XS · S · M · L · XXS

Noah Fast 3.0 geometry geometry by size
SizeReachStackETTHTASTATrailWheelbaseChainstayBB dropBB heightFront centerFork offsetHead tubeSeat tubeStandoverFork lengthWheel flopMax tire
XS399.2 mm504.7 mm525 mm72 °76 °—988.2 mm400.6 mm—269 mm592 mm45.5 mm100 mm485 mm729.9 mm369.7 mm18.5 mm—
S410.5 mm520.2 mm545 mm73 °75.5 °—996.6 mm400.9 mm—271 mm599.8 mm45.5 mm115 mm510 mm753.3 mm369.7 mm15.8 mm—
M420 mm541 mm565 mm73.5 °75 °—1007.9 mm400.9 mm—271 mm611 mm45.5 mm135 mm540 mm781 mm369.7 mm14.6 mm—
L428.3 mm565 mm585 mm73.5 °74.5 °—1023.3 mm400.9 mm—271 mm626.3 mm45.5 mm160 mm560 mm799.2 mm369.7 mm14.6 mm—
XXS385.4 mm498.2 mm505 mm71.5 °76.5 °—976.6 mm400.6 mm—269 mm580.5 mm45.5 mm95 mm480 mm724.8 mm369.7 mm19.9 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.

  • Noah Fast 3.0 geometry: XS → S — Reach +11.3 mm, Stack +15.5 mm, ETT +20 mm, HTA +1 °, STA -0.5 °, Wheelbase +8.4 mm, Chainstay +0.3 mm, BB height +2 mm, Front center +7.8 mm, Fork offset +0 mm, Head tube +15 mm, Seat tube +25 mm, Standover +23.4 mm, Fork length +0 mm, Wheel flop -2.7 mm
  • Noah Fast 3.0 geometry: S → M — Reach +9.5 mm, Stack +20.8 mm, ETT +20 mm, HTA +0.5 °, STA -0.5 °, Wheelbase +11.3 mm, Chainstay +0 mm, BB height +0 mm, Front center +11.2 mm, Fork offset +0 mm, Head tube +20 mm, Seat tube +30 mm, Standover +27.7 mm, Fork length +0 mm, Wheel flop -1.2 mm
  • Noah Fast 3.0 geometry: M → L — Reach +8.3 mm, Stack +24 mm, ETT +20 mm, HTA +0 °, STA -0.5 °, Wheelbase +15.4 mm, Chainstay +0 mm, BB height +0 mm, Front center +15.3 mm, Fork offset +0 mm, Head tube +25 mm, Seat tube +20 mm, Standover +18.2 mm, Fork length +0 mm, Wheel flop +0 mm
  • Noah Fast 3.0 geometry: L → XXS — Reach -42.9 mm, Stack -66.8 mm, ETT -80 mm, HTA -2 °, STA +2 °, Wheelbase -46.7 mm, Chainstay -0.3 mm, BB height -2 mm, Front center -45.8 mm, Fork offset +0 mm, Head tube -65 mm, Seat tube -80 mm, Standover -74.4 mm, Fork length +0 mm, Wheel flop +5.3 mm

RideDNA-derived values

These deterministic calculations use the recorded inputs above. They are separate from recorded facts and are not fit recommendations.

  • Noah Fast 3.0 geometry size M stack Reach Ratio: 1.29
  • Noah Fast 3.0 geometry size XXS stack Reach Ratio: 1.29
  • Noah Fast 3.0 geometry size XS stack Reach Ratio: 1.26
  • Noah Fast 3.0 geometry size S stack Reach Ratio: 1.27
  • Noah Fast 3.0 geometry size L stack Reach Ratio: 1.32

Noah Fast 3.0 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 Ridley Noah Fast 3.0 2026?

Reach is the horizontal distance from the bottom bracket to the top of the head tube. Also searched as frame reach.

ConfigurationSizeReachSource
Noah Fast 3.0 geometryM420 mmRideDNA-derived
Noah Fast 3.0 geometryXXS385.4 mmRideDNA-derived
Noah Fast 3.0 geometryXS399.2 mmRideDNA-derived
Noah Fast 3.0 geometryS410.5 mmRideDNA-derived
Noah Fast 3.0 geometryL428.3 mmRideDNA-derived

What is the stack of the Ridley Noah Fast 3.0 2026?

Stack is the vertical distance from the bottom bracket to the top of the head tube. Also searched as frame stack.

ConfigurationSizeStackSource
Noah Fast 3.0 geometryM541 mmRideDNA-derived
Noah Fast 3.0 geometryXXS498.2 mmRideDNA-derived
Noah Fast 3.0 geometryXS504.7 mmRideDNA-derived
Noah Fast 3.0 geometryS520.2 mmRideDNA-derived
Noah Fast 3.0 geometryL565 mmRideDNA-derived

What is the effective top tube of the Ridley Noah Fast 3.0 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.

ConfigurationSizeEffective top tubeSource
Noah Fast 3.0 geometryM565 mmRideDNA-derived
Noah Fast 3.0 geometryXXS505 mmRideDNA-derived
Noah Fast 3.0 geometryXS525 mmRideDNA-derived
Noah Fast 3.0 geometryS545 mmRideDNA-derived
Noah Fast 3.0 geometryL585 mmRideDNA-derived

What is the head tube angle of the Ridley Noah Fast 3.0 2026?

Head tube angle describes the steering-axis angle relative to the ground. Also searched as HTA, head angle, steering angle.

ConfigurationSizeHead tube angleSource
Noah Fast 3.0 geometryM73.5 °RideDNA-derived
Noah Fast 3.0 geometryXXS71.5 °RideDNA-derived
Noah Fast 3.0 geometryXS72 °RideDNA-derived
Noah Fast 3.0 geometryS73 °RideDNA-derived
Noah Fast 3.0 geometryL73.5 °RideDNA-derived

What is the seat tube angle of the Ridley Noah Fast 3.0 2026?

Seat tube angle describes the seat-tube angle relative to the ground. Also searched as STA, seat angle, effective seat angle.

ConfigurationSizeSeat tube angleSource
Noah Fast 3.0 geometryM75 °RideDNA-derived
Noah Fast 3.0 geometryXXS76.5 °RideDNA-derived
Noah Fast 3.0 geometryXS76 °RideDNA-derived
Noah Fast 3.0 geometryS75.5 °RideDNA-derived
Noah Fast 3.0 geometryL74.5 °RideDNA-derived

What is the wheelbase of the Ridley Noah Fast 3.0 2026?

Wheelbase is the distance between the front and rear wheel axles. Also searched as axle-to-axle length.

ConfigurationSizeWheelbaseSource
Noah Fast 3.0 geometryM1007.9 mmRideDNA-derived
Noah Fast 3.0 geometryXXS976.6 mmRideDNA-derived
Noah Fast 3.0 geometryXS988.2 mmRideDNA-derived
Noah Fast 3.0 geometryS996.6 mmRideDNA-derived
Noah Fast 3.0 geometryL1023.3 mmRideDNA-derived

What is the chainstay length of the Ridley Noah Fast 3.0 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.

ConfigurationSizeChainstay lengthSource
Noah Fast 3.0 geometryM400.9 mmRideDNA-derived
Noah Fast 3.0 geometryXXS400.6 mmRideDNA-derived
Noah Fast 3.0 geometryXS400.6 mmRideDNA-derived
Noah Fast 3.0 geometryS400.9 mmRideDNA-derived
Noah Fast 3.0 geometryL400.9 mmRideDNA-derived

What is the bottom bracket height of the Ridley Noah Fast 3.0 2026?

Bottom bracket height is the vertical distance from the ground to the bottom bracket. Also searched as BB height.

ConfigurationSizeBottom bracket heightSource
Noah Fast 3.0 geometryM271 mmRideDNA-derived
Noah Fast 3.0 geometryXXS269 mmRideDNA-derived
Noah Fast 3.0 geometryXS269 mmRideDNA-derived
Noah Fast 3.0 geometryS271 mmRideDNA-derived
Noah Fast 3.0 geometryL271 mmRideDNA-derived

What is the front center of the Ridley Noah Fast 3.0 2026?

Front center is the distance from the bottom bracket to the front wheel axle. Also searched as front centre.

ConfigurationSizeFront centerSource
Noah Fast 3.0 geometryM611 mmRideDNA-derived
Noah Fast 3.0 geometryXXS580.5 mmRideDNA-derived
Noah Fast 3.0 geometryXS592 mmRideDNA-derived
Noah Fast 3.0 geometryS599.8 mmRideDNA-derived
Noah Fast 3.0 geometryL626.3 mmRideDNA-derived

What is the fork offset of the Ridley Noah Fast 3.0 2026?

Fork offset is the perpendicular distance between the steering axis and the front axle. Also searched as fork rake, rake.

ConfigurationSizeFork offsetSource
Noah Fast 3.0 geometryM45.5 mmRideDNA-derived
Noah Fast 3.0 geometryXXS45.5 mmRideDNA-derived
Noah Fast 3.0 geometryXS45.5 mmRideDNA-derived
Noah Fast 3.0 geometryS45.5 mmRideDNA-derived
Noah Fast 3.0 geometryL45.5 mmRideDNA-derived

What is the head tube length of the Ridley Noah Fast 3.0 2026?

Head tube length is the measured length of the frame's head tube. Also searched as Head tube, head tube.

ConfigurationSizeHead tube lengthSource
Noah Fast 3.0 geometryM135 mmRideDNA-derived
Noah Fast 3.0 geometryXXS95 mmRideDNA-derived
Noah Fast 3.0 geometryXS100 mmRideDNA-derived
Noah Fast 3.0 geometryS115 mmRideDNA-derived
Noah Fast 3.0 geometryL160 mmRideDNA-derived

What is the seat tube length of the Ridley Noah Fast 3.0 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.

ConfigurationSizeSeat tube lengthSource
Noah Fast 3.0 geometryM540 mmRideDNA-derived
Noah Fast 3.0 geometryXXS480 mmRideDNA-derived
Noah Fast 3.0 geometryXS485 mmRideDNA-derived
Noah Fast 3.0 geometryS510 mmRideDNA-derived
Noah Fast 3.0 geometryL560 mmRideDNA-derived

What is the standover height of the Ridley Noah Fast 3.0 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.

ConfigurationSizeStandover heightSource
Noah Fast 3.0 geometryM781 mmRideDNA-derived
Noah Fast 3.0 geometryXXS724.8 mmRideDNA-derived
Noah Fast 3.0 geometryXS729.9 mmRideDNA-derived
Noah Fast 3.0 geometryS753.3 mmRideDNA-derived
Noah Fast 3.0 geometryL799.2 mmRideDNA-derived

What is the fork length of the Ridley Noah Fast 3.0 2026?

Fork length is the axle-to-crown distance recorded for the fork. Also searched as axle to crown, A2C.

ConfigurationSizeFork lengthSource
Noah Fast 3.0 geometryM369.7 mmRideDNA-derived
Noah Fast 3.0 geometryXXS369.7 mmRideDNA-derived
Noah Fast 3.0 geometryXS369.7 mmRideDNA-derived
Noah Fast 3.0 geometryS369.7 mmRideDNA-derived
Noah Fast 3.0 geometryL369.7 mmRideDNA-derived

What is the wheel flop of the Ridley Noah Fast 3.0 2026?

Wheel flop is a calculated steering-geometry value based on trail and head tube angle. Also searched as flop.

ConfigurationSizeWheel flopSource
Noah Fast 3.0 geometryM14.6 mmRideDNA-derived
Noah Fast 3.0 geometryXXS19.9 mmRideDNA-derived
Noah Fast 3.0 geometryXS18.5 mmRideDNA-derived
Noah Fast 3.0 geometryS15.8 mmRideDNA-derived
Noah Fast 3.0 geometryL14.6 mmRideDNA-derived

Source

Recorded source

Ridley ASTR RS 2026

Geometry

Available sizes: XS, L, M, S, XL.

ASTR RS geometry

Jump to size: XS · S · M · L · XL

ASTR RS geometry geometry by size
SizeReachStackETTHTASTATrailWheelbaseChainstayBB dropBB heightFront centerFork offsetHead tubeSeat tubeStandoverFork lengthWheel flopMax tire
XS376.3 mm536.3 mm525 mm71 °74.5 °—1006.3 mm418.3 mm—286 mm592.8 mm50 mm115 mm475 mm756.5 mm390.1 mm22 mm—
S392.2 mm550.5 mm550 mm71 °74 °—1027.1 mm418.3 mm—286 mm613.4 mm50 mm130 mm500 mm775.1 mm390.1 mm22 mm—
M406.2 mm571.3 mm570 mm71.5 °74 °—1043.3 mm418.3 mm—286 mm629.5 mm50 mm150 mm520 mm795.2 mm390.1 mm20.5 mm—
L419.4 mm595 mm590 mm71.5 °74 °—1064.4 mm418.3 mm—286 mm650.4 mm50 mm175 mm550 mm821.4 mm390.1 mm20.5 mm—
XL431.7 mm618.7 mm615 mm71.5 °73.5 °—1084.7 mm418.3 mm—286 mm670.6 mm50 mm200 mm575 mm844.7 mm390.1 mm20.5 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.

  • ASTR RS geometry: XS → S — Reach +15.9 mm, Stack +14.2 mm, ETT +25 mm, HTA +0 °, STA -0.5 °, Wheelbase +20.8 mm, Chainstay +0 mm, BB height +0 mm, Front center +20.6 mm, Fork offset +0 mm, Head tube +15 mm, Seat tube +25 mm, Standover +18.6 mm, Fork length +0 mm, Wheel flop +0 mm
  • ASTR RS geometry: S → M — Reach +14 mm, Stack +20.8 mm, ETT +20 mm, HTA +0.5 °, STA +0 °, Wheelbase +16.2 mm, Chainstay +0 mm, BB height +0 mm, Front center +16.1 mm, Fork offset +0 mm, Head tube +20 mm, Seat tube +20 mm, Standover +20.1 mm, Fork length +0 mm, Wheel flop -1.5 mm
  • ASTR RS geometry: M → L — Reach +13.2 mm, Stack +23.7 mm, ETT +20 mm, HTA +0 °, STA +0 °, Wheelbase +21.1 mm, Chainstay +0 mm, BB height +0 mm, Front center +20.9 mm, Fork offset +0 mm, Head tube +25 mm, Seat tube +30 mm, Standover +26.2 mm, Fork length +0 mm, Wheel flop +0 mm
  • ASTR RS geometry: L → XL — Reach +12.3 mm, Stack +23.7 mm, ETT +25 mm, HTA +0 °, STA -0.5 °, Wheelbase +20.3 mm, Chainstay +0 mm, BB height +0 mm, Front center +20.2 mm, Fork offset +0 mm, Head tube +25 mm, Seat tube +25 mm, Standover +23.3 mm, Fork length +0 mm, Wheel flop +0 mm

RideDNA-derived values

These deterministic calculations use the recorded inputs above. They are separate from recorded facts and are not fit recommendations.

  • ASTR RS geometry size XS stack Reach Ratio: 1.43
  • ASTR RS geometry size L stack Reach Ratio: 1.42
  • ASTR RS geometry size M stack Reach Ratio: 1.41
  • ASTR RS geometry size S stack Reach Ratio: 1.4
  • ASTR RS geometry size XL stack Reach Ratio: 1.43

ASTR RS 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 Ridley ASTR RS 2026?

Reach is the horizontal distance from the bottom bracket to the top of the head tube. Also searched as frame reach.

ConfigurationSizeReachSource
ASTR RS geometryXS376.3 mmRideDNA-derived
ASTR RS geometryL419.4 mmRideDNA-derived
ASTR RS geometryM406.2 mmRideDNA-derived
ASTR RS geometryS392.2 mmRideDNA-derived
ASTR RS geometryXL431.7 mmRideDNA-derived

What is the stack of the Ridley ASTR RS 2026?

Stack is the vertical distance from the bottom bracket to the top of the head tube. Also searched as frame stack.

ConfigurationSizeStackSource
ASTR RS geometryXS536.3 mmRideDNA-derived
ASTR RS geometryL595 mmRideDNA-derived
ASTR RS geometryM571.3 mmRideDNA-derived
ASTR RS geometryS550.5 mmRideDNA-derived
ASTR RS geometryXL618.7 mmRideDNA-derived

What is the effective top tube of the Ridley ASTR RS 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.

ConfigurationSizeEffective top tubeSource
ASTR RS geometryXS525 mmRideDNA-derived
ASTR RS geometryL590 mmRideDNA-derived
ASTR RS geometryM570 mmRideDNA-derived
ASTR RS geometryS550 mmRideDNA-derived
ASTR RS geometryXL615 mmRideDNA-derived

What is the head tube angle of the Ridley ASTR RS 2026?

Head tube angle describes the steering-axis angle relative to the ground. Also searched as HTA, head angle, steering angle.

ConfigurationSizeHead tube angleSource
ASTR RS geometryXS71 °RideDNA-derived
ASTR RS geometryL71.5 °RideDNA-derived
ASTR RS geometryM71.5 °RideDNA-derived
ASTR RS geometryS71 °RideDNA-derived
ASTR RS geometryXL71.5 °RideDNA-derived

What is the seat tube angle of the Ridley ASTR RS 2026?

Seat tube angle describes the seat-tube angle relative to the ground. Also searched as STA, seat angle, effective seat angle.

ConfigurationSizeSeat tube angleSource
ASTR RS geometryXS74.5 °RideDNA-derived
ASTR RS geometryL74 °RideDNA-derived
ASTR RS geometryM74 °RideDNA-derived
ASTR RS geometryS74 °RideDNA-derived
ASTR RS geometryXL73.5 °RideDNA-derived

What is the wheelbase of the Ridley ASTR RS 2026?

Wheelbase is the distance between the front and rear wheel axles. Also searched as axle-to-axle length.

ConfigurationSizeWheelbaseSource
ASTR RS geometryXS1006.3 mmRideDNA-derived
ASTR RS geometryL1064.4 mmRideDNA-derived
ASTR RS geometryM1043.3 mmRideDNA-derived
ASTR RS geometryS1027.1 mmRideDNA-derived
ASTR RS geometryXL1084.7 mmRideDNA-derived

What is the chainstay length of the Ridley ASTR RS 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.

ConfigurationSizeChainstay lengthSource
ASTR RS geometryXS418.3 mmRideDNA-derived
ASTR RS geometryL418.3 mmRideDNA-derived
ASTR RS geometryM418.3 mmRideDNA-derived
ASTR RS geometryS418.3 mmRideDNA-derived
ASTR RS geometryXL418.3 mmRideDNA-derived

What is the bottom bracket height of the Ridley ASTR RS 2026?

Bottom bracket height is the vertical distance from the ground to the bottom bracket. Also searched as BB height.

ConfigurationSizeBottom bracket heightSource
ASTR RS geometryXS286 mmRideDNA-derived
ASTR RS geometryL286 mmRideDNA-derived
ASTR RS geometryM286 mmRideDNA-derived
ASTR RS geometryS286 mmRideDNA-derived
ASTR RS geometryXL286 mmRideDNA-derived

What is the front center of the Ridley ASTR RS 2026?

Front center is the distance from the bottom bracket to the front wheel axle. Also searched as front centre.

ConfigurationSizeFront centerSource
ASTR RS geometryXS592.8 mmRideDNA-derived
ASTR RS geometryL650.4 mmRideDNA-derived
ASTR RS geometryM629.5 mmRideDNA-derived
ASTR RS geometryS613.4 mmRideDNA-derived
ASTR RS geometryXL670.6 mmRideDNA-derived

What is the fork offset of the Ridley ASTR RS 2026?

Fork offset is the perpendicular distance between the steering axis and the front axle. Also searched as fork rake, rake.

ConfigurationSizeFork offsetSource
ASTR RS geometryXS50 mmRideDNA-derived
ASTR RS geometryL50 mmRideDNA-derived
ASTR RS geometryM50 mmRideDNA-derived
ASTR RS geometryS50 mmRideDNA-derived
ASTR RS geometryXL50 mmRideDNA-derived

What is the head tube length of the Ridley ASTR RS 2026?

Head tube length is the measured length of the frame's head tube. Also searched as Head tube, head tube.

ConfigurationSizeHead tube lengthSource
ASTR RS geometryXS115 mmRideDNA-derived
ASTR RS geometryL175 mmRideDNA-derived
ASTR RS geometryM150 mmRideDNA-derived
ASTR RS geometryS130 mmRideDNA-derived
ASTR RS geometryXL200 mmRideDNA-derived

What is the seat tube length of the Ridley ASTR RS 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.

ConfigurationSizeSeat tube lengthSource
ASTR RS geometryXS475 mmRideDNA-derived
ASTR RS geometryL550 mmRideDNA-derived
ASTR RS geometryM520 mmRideDNA-derived
ASTR RS geometryS500 mmRideDNA-derived
ASTR RS geometryXL575 mmRideDNA-derived

What is the standover height of the Ridley ASTR RS 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.

ConfigurationSizeStandover heightSource
ASTR RS geometryXS756.5 mmRideDNA-derived
ASTR RS geometryL821.4 mmRideDNA-derived
ASTR RS geometryM795.2 mmRideDNA-derived
ASTR RS geometryS775.1 mmRideDNA-derived
ASTR RS geometryXL844.7 mmRideDNA-derived

What is the fork length of the Ridley ASTR RS 2026?

Fork length is the axle-to-crown distance recorded for the fork. Also searched as axle to crown, A2C.

ConfigurationSizeFork lengthSource
ASTR RS geometryXS390.1 mmRideDNA-derived
ASTR RS geometryL390.1 mmRideDNA-derived
ASTR RS geometryM390.1 mmRideDNA-derived
ASTR RS geometryS390.1 mmRideDNA-derived
ASTR RS geometryXL390.1 mmRideDNA-derived

What is the wheel flop of the Ridley ASTR RS 2026?

Wheel flop is a calculated steering-geometry value based on trail and head tube angle. Also searched as flop.

ConfigurationSizeWheel flopSource
ASTR RS geometryXS22 mmRideDNA-derived
ASTR RS geometryL20.5 mmRideDNA-derived
ASTR RS geometryM20.5 mmRideDNA-derived
ASTR RS geometryS22 mmRideDNA-derived
ASTR RS geometryXL20.5 mmRideDNA-derived

Source

Recorded source