Compare: 2023 OPEN Cycle MIN.D Base M vs 2025 Avenger shuttle-sl Base 540

Insights

Average stack and reach vs trend of endurance road bikes

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of Avenger shuttle-sl

Stack	560mm	543mm -17mm
Reach	373mm	381mm +8mm
Stack to Reach Ratio	1.5:1	1.43:1
Seat Tube Length, C-T	491mm	493mm +2mm
Seat Tube Length, C-C	—	492mm
Top Tube Length, Effective/Horizontal HT Top	—	549mm
Top Tube Length, Actual C-C	550mm	—
Top Tube Slope	10deg	7.7deg -2.3deg
Head Tube Angle	72.5deg	73deg +0.5deg
Seat Tube Angle	72.5deg	73.2deg +0.7deg
Head Tube Length	158mm	134mm -24mm
Bottom Bracket Drop	71mm	69.2mm -1.8mm
Bottom Bracket Height	268mm	270.8mm +2.8mm
Chainstay Length	405mm	410mm +5mm
Chainstay Length Horizontal	398.7mm	404.1mm +5.4mm
Front-Center	584mm	582mm -2mm
Front-Center Horizontal	579.3mm	577.9mm -1.4mm
Wheelbase	978mm	982mm +4mm
Fork Offset/Rake	50mm	45mm -5mm
Fork Length (Axle-To-Crown)	—	368mm
Trail	54.5mm mid/neutral	56.9mm +2.4mm mid/neutral
Mechanical Trail	51.9mm	54.4mm +2.5mm
Wheel Flop	15.6mm	15.9mm +0.3mm
Standover Height	769mm	760mm -9mm
Tire to Pedal Spindle	75mm 170 mm cranks	72mm -3mm 170 mm cranks
Pedal Spindle to Ground Clearance	98mm 170 mm cranks	100.8mm +2.8mm 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	1656mm	1662mm +6mm
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	M	540
Category	Endurance Road	Performance Road