2025 HoheAcht Amuza Dio Base

	S	M	L
Stack	649mm	658mm	667mm
Reach	440mm	460mm	485mm
Stack to Reach Ratio	1.48:1	1.43:1	1.38:1
Seat Tube Length, C-T	400mm	450mm	500mm
Top Tube Length, Actual C-C	626mm	649mm	676mm
Top Tube Slope	25.7deg	21.1deg	16.7deg
Head Tube Angle	67deg	67deg	67deg
Seat Tube Angle	74deg	74deg	74deg
Head Tube Length	105mm	115mm	125mm
Bottom Bracket Drop	59mm	59mm	59mm
Bottom Bracket Height	312mm	312mm	312mm
Chainstay Length	460mm	460mm	460mm
Chainstay Length Horizontal	456.2mm	456.2mm	456.2mm
Front-Center	743.2mm	767.1mm	796mm
Front-Center Horizontal	740.8mm	764.8mm	793.8mm
Wheelbase	1197mm	1221mm	1250mm
Fork Offset/Rake	46.4mm	46.5mm	46.7mm
Trail	107.1mm very high	106.9mm very high	106.8mm very high
Mechanical Trail	98.6mm	98.4mm	98.3mm
Wheel Flop	38.5mm	38.5mm	38.4mm
Tire to Pedal Spindle	202.2mm 170 mm cranks	226.1mm 170 mm cranks	255mm 170 mm cranks
Pedal Spindle to Ground Clearance	142mm 170 mm cranks	142mm 170 mm cranks	142mm 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.

Category Trend

Source:Manufacturer

Geometry