2023 Crust Bikes Alumalith Frameset

	16"	18"	20"	22"
Stack	531mm	543mm	561mm	580mm
Reach	392mm	408mm	417mm	426mm
Stack to Reach Ratio	1.35:1	1.33:1	1.35:1	1.36:1
Seat Tube Length, C-T	432mm	482mm	533mm	585mm
Top Tube Length, Effective/Horizontal Center	594mm	609.4mm	618.1mm	626.7mm
Top Tube Length, Actual C-C	566mm	586mm	601mm	617mm
Top Tube Slope	14.5deg	9.5deg	6deg	3deg
Head Tube Angle	69deg	69deg	69deg	69deg
Seat Tube Angle	72deg	72deg	72deg	72deg
Head Tube Length	104mm	116mm	135mm	155mm
Bottom Bracket Drop	49.5mm	49.5mm	49.5mm	49.5mm
Bottom Bracket Height	298.4mm	298.4mm	298.4mm	298.4mm
Chainstay Length	445mm	445mm	445mm	445mm
Chainstay Length Horizontal	442.2mm	442.2mm	442.2mm	442.2mm
Front-Center	626.7mm	645.7mm	663.6mm	679.6mm
Front-Center Horizontal	624.8mm	643.8mm	661.8mm	677.8mm
Wheelbase	1067mm	1086mm	1104mm	1120mm
Fork Offset/Rake	45mm	45mm	45mm	45mm
Fork Length (Axle-To-Crown)	419mm	419mm	419mm	419mm
Trail	85.3mm very high	85.3mm very high	85.3mm very high	85.3mm very high
Mechanical Trail	79.7mm	79.7mm	79.7mm	79.7mm
Wheel Flop	28.6mm	28.6mm	28.6mm	28.6mm
Tire to Pedal Spindle	108.8mm 170 mm cranks	127.8mm 170 mm cranks	145.7mm 170 mm cranks	161.7mm 170 mm cranks
Pedal Spindle to Ground Clearance	128.4mm 170 mm cranks	128.4mm 170 mm cranks	128.4mm 170 mm cranks	128.4mm 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://ronsbikes.com/products/a-l-u-m-a-l-i-t-h-frameset?variant=43977527263507

Geometry