Compare: 2026 XMCS Aero Gravel Base M vs 2026 Specialized Bicycles Diverge 4 Comp Alloy 56cm

Insights

Average stack and reach vs trend of progressive gravel bikes

Design deviates from other sizes of XMCS Aero Gravel

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

Stack	568mm	592mm +24mm
Reach	395mm	378mm -17mm
Stack to Reach Ratio	1.44:1	1.57:1
Seat Tube Length, Unknown	490mm	470mm -20mm
Top Tube Length, Effective/Horizontal Unknown	558mm	535mm -23mm
Top Tube Slope	10.4deg	15.4deg +5deg
Head Tube Angle	71.2deg	71deg -0.2deg
Seat Tube Angle	74deg	74deg +0deg
Head Tube Length	135mm	116mm -19mm
Bottom Bracket Drop	80mm	85mm +5mm
Bottom Bracket Height	288mm	271mm -17mm
Chainstay Length	425mm	430mm +5mm
Chainstay Length Horizontal	417.4mm	421.5mm +4.1mm
Front-Center	623mm	625.3mm +2.3mm
Front-Center Horizontal	619.6mm	619.5mm -0.1mm
Wheelbase	1037mm	1041mm +4mm
Fork Offset/Rake	55mm	55mm +0mm
Fork Length, Unknown	400mm	391mm -9mm
Trail	67.2mm high	64.4mm -2.8mm mid/neutral
Mechanical Trail	63.6mm	60.9mm -2.7mm
Wheel Flop	20.5mm	19.8mm -0.7mm
Standover Height	—	754mm
Tire to Pedal Spindle	85mm 170 mm cranks	99.3mm +14.3mm 170 mm cranks
Pedal Spindle to Ground Clearance	118mm 170 mm cranks	101mm -17mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	57mm	45mm -12mm
Tire Outer Diameter	736mm	712mm -24mm
Bike Length with Tires	1773mm	1753mm -20mm
Handlebar Width	—	420mm
Stem Length	—	80mm
Stem Angle	—	-6deg
Suspension Type	Rigid, non-suspension corrected	Rigid, non-suspension corrected
Bar Type	Drop Bar	Drop Bar
Frame Material	Carbon/Composite	Aluminum
Fork Material	Carbon/Composite	Carbon/Composite
Brake Type	Disc	Disc

Actions	Collection I've Ridden	Collection I've Ridden
Source	https://chinertown.com/index.php/topic,6967.75.html	https://geometrygeeks.bike/bike/specialized-diverge-4-2026/
Brand	XMCS	Specialized Bicycles
Bike	2026 Aero Gravel Base	2026 Diverge 4 Comp Alloy
Size	M	56cm
Category	Progressive Gravel	All-road/Gravel