Compare: 2023 OPEN Cycle MIN.D Base S vs 2025 Avenger shuttle-sl Base 520

Insights

Somewhat upright stack and reach vs trend of endurance road bikes

Design deviates from other sizes of OPEN Cycle MIN.D

Average stack and reach vs trend of performance road bikes

Stack	535mm	520mm -15mm
Reach	361mm	371mm +10mm
Stack to Reach Ratio	1.48:1	1.4:1
Seat Tube Length, C-T	467mm	467mm +0mm
Seat Tube Length, C-C	—	466mm
Top Tube Length, Effective/Horizontal HT Top	—	526mm
Top Tube Length, Actual C-C	530mm	—
Top Tube Slope	10.1deg	8.2deg -1.9deg
Head Tube Angle	71deg	72deg +1deg
Seat Tube Angle	72.5deg	73.5deg +1deg
Head Tube Length	135mm	110mm -25mm
Bottom Bracket Drop	73mm	68.9mm -4.1mm
Bottom Bracket Height	266mm	271.1mm +5.1mm
Chainstay Length	405mm	410mm +5mm
Chainstay Length Horizontal	398.4mm	404.2mm +5.8mm
Front-Center	578mm	573mm -5mm
Front-Center Horizontal	572.6mm	568.8mm -3.8mm
Wheelbase	971mm	973mm +2mm
Fork Offset/Rake	50mm	45mm -5mm
Fork Length (Axle-To-Crown)	—	368mm
Trail	63.9mm mid/neutral	63.2mm -0.7mm mid/neutral
Mechanical Trail	60.4mm	60.1mm -0.3mm
Wheel Flop	19.7mm	18.6mm -1.1mm
Standover Height	743mm	736mm -7mm
Tire to Pedal Spindle	69mm 170 mm cranks	63mm -6mm 170 mm cranks
Pedal Spindle to Ground Clearance	96mm 170 mm cranks	101.1mm +5.1mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	28mm	29mm +1mm
Tire Outer Diameter	678mm	680mm +2mm
Bike Length with Tires	1649mm	1653mm +4mm
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://opencycle.com/mind/Intro	https://avengerbikes.com/products/2025-new-carbon-road-bike-frame-avenger-shuttle
Brand	OPEN Cycle	Avenger
Bike	2023 MIN.D Base	2025 shuttle-sl Base
Size	S	520
Category	Endurance Road	Performance Road