Compare: 2026 XDS X-LAB RS5 Base XL vs 2024 TWITTER Bikes Gravel v1 Base 540

Insights

Average stack and reach vs trend of endurance road bikes

Design deviates from other sizes of XDS X-LAB RS5

Somewhat aggressive stack and reach vs trend of all-road/gravel bikes

Design deviates from other sizes of TWITTER Bikes Gravel v1

Stack	623mm	610.5mm -12.5mm
Reach	394mm	407.3mm +13.3mm
Stack to Reach Ratio	1.58:1	1.5:1
Seat Tube Length, C-T	560mm	540mm -20mm
Top Tube Length, Effective/Horizontal Center	585mm	593.9mm +8.9mm
Top Tube Slope	8.9deg	9.5deg +0.6deg
Head Tube Angle	73deg	73.5deg +0.5deg
Seat Tube Angle	73deg	73deg +0deg
Head Tube Length	205mm	190mm -15mm
Bottom Bracket Drop	75mm	70mm -5mm
Bottom Bracket Height	268mm	281mm +13mm
Chainstay Length	420mm	420mm +0mm
Chainstay Length Horizontal	413.3mm	414.1mm +0.8mm
Front-Center	624mm	629.7mm +5.7mm
Front-Center Horizontal	619.8mm	624.9mm +5.1mm
Wheelbase	1033mm	1039mm +6mm
Fork Offset/Rake	50mm	55mm +5mm
Fork Length (On-Axis)	386mm	—
Fork Length, Unknown	—	390mm
Trail	52.6mm mid/neutral	46.6mm -6mm mid/neutral
Mechanical Trail	50.3mm	44.7mm -5.6mm
Wheel Flop	14.7mm	12.7mm -2mm
Standover Height	831mm	—
Tire to Pedal Spindle	108.5mm 172.5 mm cranks	108.7mm +0.2mm 170 mm cranks
Pedal Spindle to Ground Clearance	95.5mm 172.5 mm cranks	111mm +15.5mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	32mm	40mm +8mm
Tire Width Max	38mm	—
Tire Outer Diameter	686mm	702mm +16mm
Bike Length with Tires	1719mm	1741mm +22mm
Crank Length	172.5mm	—
Handlebar Width	420mm	—
Stem Length	100mm	—
Suspension Type	Rigid, non-suspension corrected	Rigid, non-suspension corrected
Bar Type	Drop Bar	Drop Bar
Frame Material	Aluminum	Carbon/Composite
Fork Material	Carbon/Composite	Carbon/Composite
Brake Type	Disc	Disc