Geometry comparison

Ridley ASTR 2026 vs Ridley Noah Fast 3.0 2026

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

Ridley ASTR 2026

Geometry

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

ASTR geometry

Jump to size: XS · S · M · L · XL

ASTR geometry geometry by size
SizeReachStackETTHTASTATrailWheelbaseChainstayBB dropBB heightFront centerFork offsetHead tubeSeat tubeStandoverFork lengthWheel flopMax tire
XS376.3 mm536 mm525 mm71 °74.5 °—1006.3 mm418.3 mm—286 mm592.7 mm50 mm115 mm475 mm756.4 mm389.8 mm22 mm—
S392.2 mm550.2 mm550 mm71 °74 °—1027.1 mm418.3 mm—286 mm613.3 mm50 mm130 mm500 mm775 mm389.8 mm22 mm—
M406.3 mm571 mm570 mm71.5 °74 °—1043.3 mm418.3 mm—286 mm629.4 mm50 mm150 mm520 mm795 mm389.8 mm20.5 mm—
L419.5 mm594.7 mm590 mm71.5 °74 °—1064.4 mm418.3 mm—286 mm650.4 mm50 mm175 mm550 mm821.3 mm389.8 mm20.5 mm—
XL431.8 mm618.5 mm615 mm71.5 °73.5 °—1084.7 mm418.3 mm—286 mm670.6 mm50 mm200 mm575 mm844.5 mm389.8 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 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 geometry: S → M — Reach +14.1 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 mm, Fork length +0 mm, Wheel flop -1.5 mm
  • ASTR 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 +21 mm, Fork offset +0 mm, Head tube +25 mm, Seat tube +30 mm, Standover +26.3 mm, Fork length +0 mm, Wheel flop +0 mm
  • ASTR geometry: L → XL — Reach +12.3 mm, Stack +23.8 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 +23.2 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 geometry size XS stack Reach Ratio: 1.42
  • ASTR geometry size S stack Reach Ratio: 1.4
  • ASTR geometry size M stack Reach Ratio: 1.41
  • ASTR geometry size L stack Reach Ratio: 1.42
  • ASTR geometry size XL stack Reach Ratio: 1.43

ASTR 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 2026?

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

ConfigurationSizeReachSource
ASTR geometryXS376.3 mmRideDNA-derived
ASTR geometryS392.2 mmRideDNA-derived
ASTR geometryM406.3 mmRideDNA-derived
ASTR geometryL419.5 mmRideDNA-derived
ASTR geometryXL431.8 mmRideDNA-derived

What is the stack of the Ridley ASTR 2026?

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

ConfigurationSizeStackSource
ASTR geometryXS536 mmRideDNA-derived
ASTR geometryS550.2 mmRideDNA-derived
ASTR geometryM571 mmRideDNA-derived
ASTR geometryL594.7 mmRideDNA-derived
ASTR geometryXL618.5 mmRideDNA-derived

What is the effective top tube of the Ridley ASTR 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 geometryXS525 mmRideDNA-derived
ASTR geometryS550 mmRideDNA-derived
ASTR geometryM570 mmRideDNA-derived
ASTR geometryL590 mmRideDNA-derived
ASTR geometryXL615 mmRideDNA-derived

What is the head tube angle of the Ridley ASTR 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 geometryXS71 °RideDNA-derived
ASTR geometryS71 °RideDNA-derived
ASTR geometryM71.5 °RideDNA-derived
ASTR geometryL71.5 °RideDNA-derived
ASTR geometryXL71.5 °RideDNA-derived

What is the seat tube angle of the Ridley ASTR 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 geometryXS74.5 °RideDNA-derived
ASTR geometryS74 °RideDNA-derived
ASTR geometryM74 °RideDNA-derived
ASTR geometryL74 °RideDNA-derived
ASTR geometryXL73.5 °RideDNA-derived

What is the wheelbase of the Ridley ASTR 2026?

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

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

What is the chainstay length of the Ridley ASTR 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 geometryXS418.3 mmRideDNA-derived
ASTR geometryS418.3 mmRideDNA-derived
ASTR geometryM418.3 mmRideDNA-derived
ASTR geometryL418.3 mmRideDNA-derived
ASTR geometryXL418.3 mmRideDNA-derived

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

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

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

What is the front center of the Ridley ASTR 2026?

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

ConfigurationSizeFront centerSource
ASTR geometryXS592.7 mmRideDNA-derived
ASTR geometryS613.3 mmRideDNA-derived
ASTR geometryM629.4 mmRideDNA-derived
ASTR geometryL650.4 mmRideDNA-derived
ASTR geometryXL670.6 mmRideDNA-derived

What is the fork offset of the Ridley ASTR 2026?

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

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

What is the head tube length of the Ridley ASTR 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 geometryXS115 mmRideDNA-derived
ASTR geometryS130 mmRideDNA-derived
ASTR geometryM150 mmRideDNA-derived
ASTR geometryL175 mmRideDNA-derived
ASTR geometryXL200 mmRideDNA-derived

What is the seat tube length of the Ridley ASTR 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 geometryXS475 mmRideDNA-derived
ASTR geometryS500 mmRideDNA-derived
ASTR geometryM520 mmRideDNA-derived
ASTR geometryL550 mmRideDNA-derived
ASTR geometryXL575 mmRideDNA-derived

What is the standover height of the Ridley ASTR 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 geometryXS756.4 mmRideDNA-derived
ASTR geometryS775 mmRideDNA-derived
ASTR geometryM795 mmRideDNA-derived
ASTR geometryL821.3 mmRideDNA-derived
ASTR geometryXL844.5 mmRideDNA-derived

What is the fork length of the Ridley ASTR 2026?

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

ConfigurationSizeFork lengthSource
ASTR geometryXS389.8 mmRideDNA-derived
ASTR geometryS389.8 mmRideDNA-derived
ASTR geometryM389.8 mmRideDNA-derived
ASTR geometryL389.8 mmRideDNA-derived
ASTR geometryXL389.8 mmRideDNA-derived

What is the wheel flop of the Ridley ASTR 2026?

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

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

Source

Recorded source

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