2023 Crust Bikes aluminus MAXimus Base

	51	53	55	57	59/60
Stack	560mm	575mm	590mm	605mm	630mm
Reach	364mm	380mm	384mm	395mm	412mm
Stack to Reach Ratio	1.54:1	1.51:1	1.54:1	1.53:1	1.53:1
Seat Tube Length, C-C	400mm	430mm	460mm	515mm	535mm
Top Tube Length, Effective/Horizontal HT Top	522mm	547mm	561mm	576mm	600mm
Head Tube Angle	70deg	71deg	71deg	71deg	71deg
Seat Tube Angle	74.5deg	74deg	73.5deg	73.5deg	73.5deg
Head Tube Length	105mm	116mm	132mm	148mm	174mm
Bottom Bracket Drop	70mm	70mm	70mm	70mm	70mm
Bottom Bracket Height	289mm	289mm	289mm	289mm	289mm
Chainstay Length	430mm	430mm	430mm	430mm	430mm
Chainstay Length Horizontal	424.3mm	424.3mm	424.3mm	424.3mm	424.3mm
Front-Center	599.7mm	610.8mm	619.9mm	636mm	661.4mm
Front-Center Horizontal	595.6mm	606.8mm	615.9mm	632.1mm	657.7mm
Wheelbase	1019.8mm	1031mm	1040.2mm	1056.4mm	1082mm
Fork Offset/Rake	50mm	50mm	50mm	50mm	50mm
Fork Length (Axle-To-Crown)	423mm	423mm	423mm	423mm	423mm
Trail	77.5mm high	70.7mm high	70.7mm high	70.7mm high	70.7mm high
Mechanical Trail	72.8mm	66.9mm	66.9mm	66.9mm	66.9mm
Wheel Flop	24.9mm	21.8mm	21.8mm	21.8mm	21.8mm
Standover Height	—	783mm	805mm	838mm	—
Tire to Pedal Spindle	70.7mm 170 mm cranks	81.8mm 170 mm cranks	90.9mm 170 mm cranks	107mm 170 mm cranks	132.4mm 170 mm cranks
Pedal Spindle to Ground Clearance	119mm 170 mm cranks	119mm 170 mm cranks	119mm 170 mm cranks	119mm 170 mm cranks	119mm 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:https://ronsbikesblog.com/2023/09/11/aluminus-maximus/#jp-carousel-1803

Geometry