	Small	Medium	Large	X-Large
Stack	605mm	619mm	633mm	642mm
Reach	415mm	445mm	475mm	505mm
Stack to Reach Ratio	1.46:1	1.39:1	1.33:1	1.27:1
Seat Tube Length, Unknown	356mm	407mm	457mm	495mm
Seat Tube Length, Effective Unknown	76.5mm	76.5mm	77mm	77.5mm
Top Tube Length, Actual C-C	560mm	594mm	621mm	647mm
Head Tube Angle	65.2deg	65.2deg	65.2deg	65.2deg
Head Tube Length	90mm	105mm	120mm	130mm
Bottom Bracket Drop	31mm	31mm	31mm	31mm
Bottom Bracket Height	341mm	341mm	341mm	341mm
Chainstay Length	435mm	435mm	435mm	435mm
Chainstay Length Horizontal	433.9mm	433.9mm	433.9mm	433.9mm
Front-Center	729mm	765mm	801mm	835mm
Front-Center Horizontal	729.1mm	766.1mm	802.1mm	836.1mm
Wheelbase	1163mm	1200mm	1236mm	1270mm
Fork Offset/Rake	44.4mm	44.9mm	44.4mm	44.3mm
Trail	123mm very high	122.5mm very high	122.9mm very high	123.1mm very high
Mechanical Trail	111.7mm	111.2mm	111.6mm	111.7mm
Wheel Flop	46.8mm	46.6mm	46.8mm	46.9mm
Standover Height	741mm	743mm	742mm	742mm
Tire to Pedal Spindle	187mm 170 mm cranks	223mm 170 mm cranks	259mm 170 mm cranks	293mm 170 mm cranks
Pedal Spindle to Ground Clearance	171mm 170 mm cranks	171mm 170 mm cranks	171mm 170 mm cranks	171mm 170 mm cranks

Very Upright

Somewhat Upright

Average

Somewhat Aggressive

Very Aggressive

The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.

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Source:https://spotbikes.com/collections/bikes/products/mayhem-140?variant=43987697500194

2026 Spot Bikes Mayhem 140 Base

Geometry