Compare: 2021 Trifox Bike X18 Base 54 vs 2025 Ridley Bikes Noah Fast 3.0 S

Insights

Somewhat aggressive stack and reach vs trend of performance road bikes

Design deviates from other sizes of Trifox Bike X18

Very aggressive stack and reach vs trend of performance road bikes

Stack	534mm	521mm -13mm
Reach	387mm	410mm +23mm
Stack to Reach Ratio	1.38:1	1.27:1
Seat Tube Length, C-T	475mm	—
Seat Tube Length, C-C	—	510mm
Seat Tube Length, Effective Unknown	—	800mm
Top Tube Length, Effective/Horizontal Center	541mm	545mm +4mm
Top Tube Slope	8.5deg	—
Head Tube Angle	73deg	73deg +0deg
Seat Tube Angle	74deg	75.5deg +1.5deg
Head Tube Length	131mm	115mm -16mm
Bottom Bracket Drop	72mm	70mm -2mm
Bottom Bracket Height	267mm	275mm +8mm
Chainstay Length	415mm	407mm -8mm
Chainstay Length Horizontal	408.7mm	400.9mm -7.8mm
Front-Center	579mm	599.2mm +20.2mm
Front-Center Horizontal	574.3mm	595.1mm +20.8mm
Wheelbase	983mm	996mm +13mm
Fork Offset/Rake	47mm	45.1mm -1.9mm
Fork Length, Unknown	366mm	—
Trail	54.5mm mid/neutral	58.3mm +3.8mm mid/neutral
Mechanical Trail	52.1mm	55.8mm +3.7mm
Wheel Flop	15.2mm	16.3mm +1.1mm
Tire to Pedal Spindle	70mm 170 mm cranks	84.2mm +14.2mm 170 mm cranks
Pedal Spindle to Ground Clearance	97mm 170 mm cranks	105mm +8mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	28mm	34mm +6mm
Tire Outer Diameter	678mm	690mm +12mm
Bike Length with Tires	1661mm	1686mm +25mm
Suspension Type	Rigid, non-suspension corrected	Rigid, non-suspension corrected
Bar Type	Drop Bar	Drop Bar
Frame Material	Carbon/Composite	Carbon/Composite
Fork Material	Carbon/Composite	Carbon/Composite
Brake Type	Disc	Disc

Actions	Collection I've Ridden	Collection I've Ridden
Source	https://www.trifoxbike.com/lightweight-disc-brake-carbon-road-bike-frame-x18	https://www.ridley-bikes.com/en_INT/bikes/SBINF3RID076
Brand	Trifox Bike	Ridley Bikes
Bike	2021 X18 Base	2025 Noah Fast 3.0
Size	54	S
Category	Performance Road	Performance Road