2019 J.Guillem Bicycles Atalaya Base

	52CM	54CM	56CM	58CM
Stack	528mm	550mm	592mm	602mm
Reach	381mm	386mm	394mm	411mm
Stack to Reach Ratio	1.39:1	1.42:1	1.5:1	1.46:1
Seat Tube Length, C-T	500mm	520mm	540mm	560mm
Seat Tube Length, C-C	460mm	480mm	500mm	520mm
Top Tube Length, Effective/Horizontal HT Top	535mm	550mm	570mm	590mm
Top Tube Slope	523deg	536deg	552deg	573deg
Head Tube Angle	70deg	71deg	72deg	72deg
Seat Tube Angle	74deg	73.5deg	73.5deg	73.5deg
Head Tube Length	110mm	130mm	170mm	180mm
Bottom Bracket Drop	70mm	70mm	70mm	70mm
Bottom Bracket Height	275.3mm	275.3mm	275.3mm	275.3mm
Chainstay Length	420mm	420mm	420mm	420mm
Chainstay Length Horizontal	414.1mm	414.1mm	414.1mm	414.1mm
Front-Center	600mm	603mm	615mm	635mm
Front-Center Horizontal	595.9mm	598.9mm	610.9mm	630.9mm
Wheelbase	1010mm	1013mm	1025mm	1045mm
Fork Offset/Rake	45.3mm	45mm	45mm	44.7mm
Trail	77.5mm high	71.3mm high	64.9mm mid/neutral	65.2mm high
Mechanical Trail	72.8mm	67.4mm	61.8mm	62mm
Wheel Flop	24.9mm	22mm	19.1mm	19.2mm
Tire to Pedal Spindle	84.7mm 170 mm cranks	87.7mm 170 mm cranks	99.7mm 170 mm cranks	119.7mm 170 mm cranks
Pedal Spindle to Ground Clearance	105.3mm 170 mm cranks	105.3mm 170 mm cranks	105.3mm 170 mm cranks	105.3mm 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://jguillem.com/bike/atalaya-gravel

Geometry