2026 Diamant Mahon World

	M	L	XL	XXL
Stack	575mm	598mm	626mm	626mm
Reach	385mm	393mm	407mm	420mm
Stack to Reach Ratio	1.49:1	1.52:1	1.54:1	1.49:1
Seat Tube Length, C-T	500mm	540mm	580mm	620mm
Top Tube Length, Effective/Horizontal HT Top	582mm	597mm	620mm	633mm
Top Tube Slope	10.3deg	8.4deg	7.1deg	3.2deg
Head Tube Angle	69deg	69deg	69deg	69deg
Seat Tube Angle	73deg	73deg	73deg	73deg
Head Tube Length	145mm	170mm	200mm	200mm
Bottom Bracket Drop	70mm	70mm	70mm	70mm
Bottom Bracket Height	291mm	291mm	291mm	291mm
Chainstay Length	468mm	468mm	468mm	468mm
Chainstay Length Horizontal	462.7mm	462.7mm	462.7mm	462.7mm
Front-Center	658mm	674.9mm	698.8mm	711.7mm
Front-Center Horizontal	654.3mm	671.3mm	695.3mm	708.3mm
Wheelbase	1117mm	1134mm	1158mm	1171mm
Fork Offset/Rake	50mm	50mm	50mm	50mm
Trail	85mm very high	85mm very high	85mm very high	85mm very high
Mechanical Trail	79.4mm	79.4mm	79.4mm	79.4mm
Wheel Flop	28.4mm	28.4mm	28.4mm	28.4mm
Tire to Pedal Spindle	122mm 175 mm cranks	138.9mm 175 mm cranks	162.8mm 175 mm cranks	175.7mm 175 mm cranks
Pedal Spindle to Ground Clearance	116mm 175 mm cranks	116mm 175 mm cranks	116mm 175 mm cranks	116mm 175 mm cranks

Published Sizing Recommendations

Height	165 cm to 175 cm	175 cm to 186 cm	186 cm to 197 cm	197 cm to 203 cm
PBH	77 cm to 83 cm	82 cm to 88 cm	87 cm to 93 cm	92 cm to 95 cm

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.

Category Trend

Source:https://www.diamantrad.com/de-DE/bike/mahon-world-stepover/