2026 FiddlyThings OX-I(de) Base

	50	54	58	60	62
Stack	555mm	585mm	615mm	630mm	650mm
Reach	370mm	385mm	400mm	410mm	420mm
Stack to Reach Ratio	1.5:1	1.52:1	1.54:1	1.54:1	1.55:1
Seat Tube Length, C-T	490mm	530mm	565mm	560mm	600mm
Top Tube Length, Effective/Horizontal Unknown	545mm	570mm	590mm	600mm	615mm
Top Tube Slope	9.4deg	8.2deg	7.5deg	9.4deg	7.4deg
Head Tube Angle	71deg	71deg	71deg	71deg	71deg
Seat Tube Angle	74deg	73.5deg	73deg	73deg	72.5deg
Head Tube Length	120mm	150mm	180mm	195mm	215mm
Bottom Bracket Drop	65mm	65mm	65mm	65mm	65mm
Bottom Bracket Height	274mm	274mm	290mm	290mm	290mm
Chainstay Length	445mm	450mm	450mm	450mm	455mm
Chainstay Length Horizontal	440.2mm	445.3mm	445.3mm	445.3mm	450.3mm
Front-Center	610mm	625mm	640mm	645mm	660mm
Front-Center Horizontal	614.8mm	629.7mm	644.7mm	649.7mm	664.7mm
Wheelbase	1055mm	1075mm	1090mm	1095mm	1115mm
Fork Offset/Rake	55mm	55mm	55mm	55mm	55mm
Fork Length (Axle-To-Crown)	445mm	445mm	445mm	445mm	445mm
Trail	58.6mm mid/neutral	58.6mm mid/neutral	64.1mm mid/neutral	64.1mm mid/neutral	64.1mm mid/neutral
Mechanical Trail	55.4mm	55.4mm	60.6mm	60.6mm	60.6mm
Wheel Flop	18mm	18mm	19.7mm	19.7mm	19.7mm
Standover Height	735mm	770mm	800mm	810mm	835mm
Tire to Pedal Spindle	101mm 170 mm cranks	116mm 170 mm cranks	115mm 170 mm cranks	120mm 170 mm cranks	135mm 170 mm cranks
Pedal Spindle to Ground Clearance	104mm 170 mm cranks	104mm 170 mm cranks	120mm 170 mm cranks	120mm 170 mm cranks	120mm 170 mm cranks

Published Sizing Recommendations

Height

5 ft 5 in

5 ft 8 in

5 ft 11 in

6 ft 2 in

6 ft 5 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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