2025 Radon Bikes Tigard Base

	46cm	49cm	52cm	56cm
Stack	523mm	540mm	570mm	625mm
Reach	380mm	379mm	390mm	398mm
Stack to Reach Ratio	1.38:1	1.42:1	1.46:1	1.57:1
Seat Tube Length, Unknown	460mm	490mm	520mm	560mm
Top Tube Length, Effective/Horizontal Center	520mm	540mm	570mm	590mm
Top Tube Slope	9deg	7.7deg	7.6deg	9.1deg
Head Tube Angle	70.5deg	71deg	72.5deg	72.5deg
Seat Tube Angle	75deg	73.8deg	73deg	73deg
Head Tube Length	100mm	130mm	160mm	200mm
Bottom Bracket Drop	70mm	70mm	70mm	70mm
Bottom Bracket Height	286mm	286mm	286mm	286mm
Chainstay Length	439.5mm	439.5mm	439.5mm	439.5mm
Chainstay Length Horizontal	433.9mm	433.9mm	433.9mm	433.9mm
Front-Center	593.3mm	593.3mm	601.2mm	621.1mm
Front-Center Horizontal	589.1mm	589.1mm	597.1mm	617.1mm
Wheelbase	1023mm	1023mm	1031mm	1051mm
Fork Offset/Rake	45.9mm	45.7mm	47.2mm	42.1mm
Trail	77.4mm high	74.3mm high	62.8mm mid/neutral	68.1mm high
Mechanical Trail	72.9mm	70.3mm	59.9mm	65mm
Wheel Flop	24.4mm	22.9mm	18mm	19.5mm
Tire to Pedal Spindle	67.3mm 170 mm cranks	67.3mm 170 mm cranks	75.2mm 170 mm cranks	95.1mm 170 mm cranks
Pedal Spindle to Ground Clearance	116mm 170 mm cranks	116mm 170 mm cranks	116mm 170 mm cranks	116mm 170 mm cranks

Published Sizing Recommendations

Height

152.5 cm

165 cm

164 cm

176 cm

175 cm

185 cm

184 cm

196 cm

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://www.radon-bikes.de/roadbike-gravel/gravel/tigard/tigard-frameset/