Compare: 2026 mentech arc sport Base 57 vs 2026 XDS X-LAB RT9 Base L

Insights

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of mentech arc sport

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of XDS X-LAB RT9

Stack	571.2mm	567mm -4.2mm
Reach	395.4mm	396mm +0.6mm
Stack to Reach Ratio	1.44:1	1.43:1
Seat Tube Length, C-T	—	500mm
Seat Tube Length, Unknown	540mm	—
Top Tube Length, Effective/Horizontal Center	570mm	—
Top Tube Length, Effective/Horizontal Unknown	—	563mm
Top Tube Slope	5.7deg	9.3deg +3.6deg
Head Tube Angle	72.3deg	73.5deg +1.2deg
Seat Tube Angle	73deg	73.5deg +0.5deg
Head Tube Length	164mm	157mm -7mm
Bottom Bracket Drop	72mm	72mm +0mm
Bottom Bracket Height	271mm	267mm -4mm
Chainstay Length	410mm	410mm +0mm
Chainstay Length Horizontal	403.6mm	403.6mm +0mm
Front-Center	611.5mm	592mm -19.5mm
Front-Center Horizontal	607.2mm	588.4mm -18.8mm
Wheelbase	1010.8mm	992mm -18.8mm
Fork Offset/Rake	50mm	43.9mm -6.1mm
Fork Length (On-Axis)	375mm	—
Trail	57mm mid/neutral	54.7mm -2.3mm mid/neutral
Mechanical Trail	54.3mm	52.4mm -1.9mm
Wheel Flop	16.5mm	14.9mm -1.6mm
Standover Height	811.9mm	769mm -42.9mm
Tire to Pedal Spindle	98.5mm 170 mm cranks	83mm -15.5mm 170 mm cranks
Pedal Spindle to Ground Clearance	101mm 170 mm cranks	97mm -4mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	32mm	28mm -4mm
Tire Width Max	35mm	—
Tire Outer Diameter	686mm	678mm -8mm
Bike Length with Tires	1696.8mm	1670mm -26.8mm
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