2018 Author Ronin Original

	480	500	520	540	560	580
Stack	555.9mm	555.9mm	566.1mm	580.3mm	591.8mm	601.2mm
Reach	360.4mm	373.4mm	380.9mm	378mm	384.3mm	386.1mm
Stack to Reach Ratio	1.54:1	1.49:1	1.49:1	1.54:1	1.54:1	1.56:1
Seat Tube Length, C-T	480mm	500mm	520mm	540mm	560mm	580mm
Seat Tube Length, C-C	440mm	460mm	480mm	500mm	520mm	540mm
Top Tube Length, Effective/Horizontal HT Top	515mm	528mm	538mm	545mm	560mm	570mm
Top Tube Length, Actual C-C	500mm	515mm	526mm	532mm	547mm	558mm
Head Tube Angle	70.8deg	70.8deg	71deg	71deg	71.5deg	71.5deg
Seat Tube Angle	74.5deg	74.5deg	74.5deg	74deg	73.5deg	73deg
Head Tube Length	110mm	110mm	120mm	135mm	145mm	155mm
Bottom Bracket Drop	65mm	65mm	65mm	65mm	65mm	65mm
Bottom Bracket Height	286mm	286mm	286mm	286mm	286mm	286mm
Chainstay Length	425mm	425mm	425mm	425mm	425mm	425mm
Chainstay Length Horizontal	420mm	420mm	420mm	420mm	420mm	420mm
Front-Center	582.6mm	595.6mm	604.5mm	606.5mm	611.5mm	616.4mm
Front-Center Horizontal	579mm	592mm	601mm	603mm	608mm	613mm
Wheelbase	999mm	1012mm	1021mm	1023mm	1028mm	1033mm
Fork Offset/Rake	45mm	45mm	45mm	45mm	45mm	45mm
Fork Length (Axle-To-Crown)	408mm	408mm	408mm	408mm	408mm	408mm
Trail	74.6mm high	74.6mm high	73.3mm high	73.3mm high	70mm high	70mm high
Mechanical Trail	70.4mm	70.4mm	69.3mm	69.3mm	66.4mm	66.4mm
Wheel Flop	23.2mm	23.2mm	22.6mm	22.6mm	21.1mm	21.1mm
Tire to Pedal Spindle	56.6mm 175 mm cranks	74.6mm 170 mm cranks	78.5mm 175 mm cranks	80.5mm 175 mm cranks	90.5mm 170 mm cranks	90.4mm 175 mm cranks
Pedal Spindle to Ground Clearance	111mm 175 mm cranks	116mm 170 mm cranks	111mm 175 mm cranks	111mm 175 mm cranks	116mm 170 mm cranks	111mm 175 mm cranks

	480	500	520	540	560	580
Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	40mm	40mm	40mm	40mm	40mm	40mm
Tire Outer Diameter	702mm	702mm	702mm	702mm	702mm	702mm
Bike Length with Tires	1701mm	1714mm	1723mm	1725mm	1730mm	1735mm
Crank Length	175mm	170mm	175mm	175mm	170mm	175mm
Stem Length	100mm	80mm	90mm	100mm	70mm	80mm

Published Sizing Recommendations

Height

12 ft 10 in

13 ft 6 in

13 ft 4 in

14 ft 2 in

14 ft 0 in

14 ft 10 in

14 ft 8 in

15 ft 8 in

15 ft 6 in

16 ft 3 in

16 ft 1 in

17 ft 1 in

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.

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Source:https://en.author.eu/adventure/gravel-bike/author-ronin-2018-ua42901301-1154#!geometrie-modelu