Compare: 2021 SEKA AFIELD Base S vs 2017 Ridley Bikes Helium X Base XS

Insights

Somewhat upright stack and reach vs trend of performance road bikes

Design deviates from other sizes of SEKA AFIELD

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of Ridley Bikes Helium X

Stack	535mm	526mm -9mm
Reach	369mm	374mm +5mm
Stack to Reach Ratio	1.45:1	1.41:1
Seat Tube Length, C-T	490mm	480mm -10mm
Seat Tube Length, C-C	—	440mm
Top Tube Length, Effective/Horizontal Center	—	525mm
Top Tube Length, Effective/Horizontal Unknown	517mm	—
Top Tube Length, Actual C-C	—	509mm
Top Tube Slope	7.2deg	8.5deg +1.3deg
Head Tube Angle	71.5deg	72deg +0.5deg
Seat Tube Angle	74.5deg	74deg -0.5deg
Head Tube Length	130mm	127mm -3mm
Bottom Bracket Drop	68mm	68mm +0mm
Bottom Bracket Height	268mm	268mm +0mm
Chainstay Length	407mm	405mm -2mm
Chainstay Length Horizontal	401.3mm	399.3mm -2mm
Front-Center	585mm	573.8mm -11.2mm
Front-Center Horizontal	581.7mm	569.8mm -11.9mm
Wheelbase	983mm	969mm -14mm
Fork Offset/Rake	53mm	44.6mm -8.4mm
Fork Length (Axle-To-Crown)	380.5mm	—
Trail	56.5mm mid/neutral	62.2mm +5.7mm mid/neutral
Mechanical Trail	53.6mm	59.2mm +5.6mm
Wheel Flop	17mm	18.3mm +1.3mm
Tire to Pedal Spindle	79mm 170 mm cranks	67.8mm -11.2mm 170 mm cranks
Pedal Spindle to Ground Clearance	98mm 170 mm cranks	98mm +0mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	25mm	25mm +0mm
Tire Outer Diameter	672mm	672mm +0mm
Bike Length with Tires	1655mm	1641mm -14mm
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	Rim	Rim

Actions	Collection I've Ridden	Collection I've Ridden
Source	http://www.sekabikes.com/en/afield-r8000-english/	ridley
Brand	SEKA	Ridley Bikes
Bike	2021 AFIELD Base	2017 Helium X Base
Size	S	XS
Category	Performance Road	Performance Road