2024 3T Cycling Primo Base

	S	M	L	XL
Stack	517mm	546mm	575mm	604mm
Reach	366mm	378mm	390mm	402mm
Stack to Reach Ratio	1.41:1	1.44:1	1.47:1	1.5:1
Seat Tube Length, C-T	463mm	490mm	518mm	545mm
Top Tube Length, Actual C-C	529mm	550mm	571mm	592mm
Top Tube Slope	8.5deg	8.5deg	8.4deg	8.5deg
Head Tube Angle	69.5deg	71.1deg	72.5deg	72.5deg
Seat Tube Angle	72.5deg	72.5deg	72.5deg	72.5deg
Head Tube Length	101mm	125mm	150mm	180mm
Bottom Bracket Drop	70mm	70mm	70mm	70mm
Bottom Bracket Height	281mm	281mm	281mm	281mm
Chainstay Length	415mm	415mm	415mm	415mm
Chainstay Length Horizontal	409.1mm	409.1mm	409.1mm	409.1mm
Front-Center	591mm	598mm	606mm	627mm
Front-Center Horizontal	586.8mm	593.9mm	601.9mm	623.1mm
Wheelbase	995.9mm	1002.9mm	1011mm	1032.1mm
Fork Offset/Rake	50mm	50mm	50mm	50mm
Fork Length (Axle-To-Crown)	395mm	395mm	395mm	395mm
Trail	77.9mm high	67.3mm high	58.2mm mid/neutral	58.2mm mid/neutral
Mechanical Trail	72.9mm	63.7mm	55.6mm	55.6mm
Wheel Flop	25.5mm	20.6mm	16.7mm	16.7mm
Tire to Pedal Spindle	70mm 170 mm cranks	77mm 170 mm cranks	85mm 170 mm cranks	106mm 170 mm cranks
Pedal Spindle to Ground Clearance	111mm 170 mm cranks	111mm 170 mm cranks	111mm 170 mm cranks	111mm 170 mm cranks

Published Sizing Recommendations

Height

157 cm

170 cm

168 cm

180 cm

178 cm

191 cm

188 cm

201 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://3t.bike/collections/primo#shopify-section-template--21722479329614__featured_collection_yMJcfB