2020 Ridley Bikes Noah Fast Disc Base

	XS	S	M	L	XL
Stack	493mm	516mm	541mm	565mm	591mm
Reach	375mm	378mm	385mm	393mm	401mm
Stack to Reach Ratio	1.31:1	1.37:1	1.41:1	1.44:1	1.47:1
Seat Tube Length, C-T	430mm	455mm	480mm	505mm	530mm
Top Tube Length, Effective/Horizontal Center	512mm	526mm	545mm	565mm	587mm
Top Tube Slope	9.1deg	8.9deg	8.8deg	8.6deg	8.7deg
Head Tube Angle	71.5deg	72deg	73deg	73.5deg	73.5deg
Seat Tube Angle	74.5deg	74deg	73.5deg	73deg	72.5deg
Head Tube Length	95mm	117mm	140mm	164mm	194mm
Bottom Bracket Drop	68mm	68mm	66mm	66mm	63mm
Bottom Bracket Height	268mm	268mm	270mm	270mm	273mm
Chainstay Length	405mm	405mm	405mm	405mm	408mm
Chainstay Length Horizontal	399.3mm	399.3mm	399.6mm	399.6mm	403.1mm
Front-Center	573.8mm	579.8mm	581.2mm	591.1mm	607.2mm
Front-Center Horizontal	569.8mm	575.8mm	577.4mm	587.4mm	603.9mm
Wheelbase	969mm	975mm	977mm	987mm	1007mm
Fork Offset/Rake	49.8mm	49.6mm	45.1mm	44.7mm	44.6mm
Trail	59.9mm mid/neutral	57mm mid/neutral	55.5mm mid/neutral	52.9mm mid/neutral	53mm mid/neutral
Mechanical Trail	56.8mm	54.2mm	53.1mm	50.7mm	50.9mm
Wheel Flop	18mm	16.8mm	15.5mm	14.4mm	14.4mm
Standover Height	720mm	750mm	775mm	800mm	825mm
Tire to Pedal Spindle	67.8mm 170 mm cranks	73.8mm 170 mm cranks	75.2mm 170 mm cranks	85.1mm 170 mm cranks	101.2mm 170 mm cranks
Pedal Spindle to Ground Clearance	98mm 170 mm cranks	98mm 170 mm cranks	100mm 170 mm cranks	100mm 170 mm cranks	103mm 170 mm cranks

Very Upright

Somewhat Upright

Average

Somewhat Aggressive

Very Aggressive

The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.

Category Trend

Source:https://www.ridley-bikes.com/en_ES/bikes/SBINFDRID042

Geometry