2022 Veloheld Iron Base

	S	M	L	XL
Stack	604mm	608mm	617mm	626mm
Reach	431mm	449.5mm	467mm	489mm
Stack to Reach Ratio	1.4:1	1.35:1	1.32:1	1.28:1
Seat Tube Length, C-T	395mm	440mm	480mm	520mm
Top Tube Length, Effective/Horizontal HT Top	590mm	610mm	630mm	655mm
Top Tube Slope	22.5deg	18deg	14.6deg	11.3deg
Head Tube Angle	66deg	66deg	66deg	66deg
Seat Tube Angle	73.5deg	73.5deg	73.5deg	73.5deg
Head Tube Length	95mm	100mm	110mm	120mm
Bottom Bracket Drop	63mm	63mm	63mm	63mm
Bottom Bracket Height	300.1mm	300.1mm	300.1mm	300.1mm
Chainstay Length	425mm	430mm	435mm	440mm
Chainstay Length Horizontal	420.3mm	425.4mm	430.4mm	435.5mm
Front-Center	729.4mm	750.3mm	767.2mm	798mm
Front-Center Horizontal	726.7mm	747.6mm	764.6mm	795.5mm
Wheelbase	1147mm	1173mm	1195mm	1231mm
Fork Offset/Rake	45mm	45mm	45mm	45mm
Fork Length, Unknown	490mm	490mm	490mm	490mm
Trail	112.4mm very high	112.4mm very high	112.4mm very high	112.4mm very high
Mechanical Trail	102.7mm	102.7mm	102.7mm	102.7mm
Wheel Flop	41.8mm	41.8mm	41.8mm	41.8mm
Tire to Pedal Spindle	196.3mm 170 mm cranks	217.2mm 170 mm cranks	234.1mm 170 mm cranks	264.9mm 170 mm cranks
Pedal Spindle to Ground Clearance	130.1mm 170 mm cranks	130.1mm 170 mm cranks	130.1mm 170 mm cranks	130.1mm 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://www.veloheld.de/veloheld-iron-frame

Geometry