Compare: 2025 Cannondale SuperX Base 51 vs 2026 BXT BXT-GRAVEL-055 Base 51

Insights

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

Design deviates from other sizes of Cannondale SuperX

Bar type unusual for category

This: Moto/Klunker/Riser Bar
Category: Drop Bar

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

Design deviates from other sizes of BXT BXT-GRAVEL-055

Stack	535mm	532.5mm -2.5mm
Reach	371mm	373mm +2mm
Stack to Reach Ratio	1.44:1	1.43:1
Seat Tube Length, C-T	488mm	488mm +0mm
Top Tube Length, Effective/Horizontal Center	521mm	522.5mm +1.5mm
Top Tube Slope	7.4deg	7.1deg -0.3deg
Head Tube Angle	71deg	71deg +0deg
Seat Tube Angle	74.3deg	74.3deg +0deg
Head Tube Length	108mm	108mm +0mm
Bottom Bracket Drop	72mm	69mm -3mm
Bottom Bracket Height	279mm	292mm +13mm
Chainstay Length	422mm	426mm +4mm
Chainstay Length Horizontal	415.8mm	420.4mm +4.6mm
Front-Center	593mm	595mm +2mm
Front-Center Horizontal	589.2mm	590.6mm +1.4mm
Wheelbase	1005mm	1011mm +6mm
Fork Offset/Rake	55mm	55mm +0mm
Fork Length (Axle-To-Crown)	400mm	—
Fork Length, Unknown	—	401mm
Trail	62.7mm mid/neutral	66.1mm +3.4mm high
Mechanical Trail	59.3mm	62.5mm +3.2mm
Wheel Flop	19.3mm	20.4mm +1.1mm
Standover Height	782mm	786.5mm +4.5mm
Tire to Pedal Spindle	72mm 170 mm cranks	64mm -8mm 170 mm cranks
Pedal Spindle to Ground Clearance	109mm 170 mm cranks	122mm +13mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	40mm	50mm +10mm
Tire Width Max	—	50mm
Tire Outer Diameter	702mm	722mm +20mm
Bike Length with Tires	1707mm	1733mm +26mm
Suspension Type	Rigid, non-suspension corrected	Rigid, non-suspension corrected
Bar Type	Moto/Klunker/Riser Bar	Drop Bar
Frame Material	Unknown	Carbon/Composite
Fork Material	Unknown	Carbon/Composite
Brake Type	Unknown	Disc