2025 Yoeleo Altera G21 DB Base

	45	49	52	54	56	58	60
Stack	512mm	531mm	549mm	566mm	586mm	611mm	640mm
Reach	373mm	373mm	379mm	383mm	387mm	390mm	396mm
Stack to Reach Ratio	1.37:1	1.42:1	1.45:1	1.48:1	1.51:1	1.57:1	1.62:1
Seat Tube Length, Unknown	450mm	490mm	520mm	540mm	560mm	580mm	610mm
Top Tube Length, Actual C-C	510mm	515mm	536.4mm	551mm	566mm	577mm	592mm
Top Tube Slope	9deg	6.6deg	5.4deg	5.1deg	5.2deg	5.8deg	5.6deg
Head Tube Angle	69deg	69.5deg	70deg	70deg	72.2deg	72.3deg	72.6deg
Seat Tube Angle	75deg	75deg	74deg	73.5deg	73deg	73deg	73deg
Head Tube Length	79mm	98.5mm	107mm	134mm	145mm	171mm	200mm
Bottom Bracket Drop	79mm	79mm	79mm	79mm	79mm	79mm	79mm
Bottom Bracket Height	280mm	280mm	280mm	280mm	280mm	280mm	280mm
Chainstay Length	433mm	433mm	433mm	433mm	433mm	433mm	433mm
Chainstay Length Horizontal	425.7mm	425.7mm	425.7mm	425.7mm	425.7mm	425.7mm	425.7mm
Front-Center	594.8mm	597.4mm	605.3mm	615.4mm	604.3mm	614.2mm	626.1mm
Front-Center Horizontal	589.6mm	592.2mm	600.1mm	610.3mm	599.1mm	609.1mm	621.1mm
Wheelbase	1015.3mm	1017.9mm	1025.8mm	1036mm	1024.9mm	1034.9mm	1046.8mm
Fork Offset/Rake	47mm	47mm	47mm	47mm	47mm	47mm	47mm
Fork Length, Unknown	401.5mm	401.5mm	401.5mm	401.5mm	401.5mm	401.5mm	401.5mm
Trail	87.5mm very high	84.1mm very high	80.7mm very high	80.7mm very high	65.9mm high	65.2mm high	63.3mm mid/neutral
Mechanical Trail	81.7mm	78.7mm	75.8mm	75.8mm	62.7mm	62.2mm	60.4mm
Wheel Flop	29.3mm	27.6mm	25.9mm	25.9mm	19.2mm	18.9mm	18.1mm
Tire to Pedal Spindle	65.8mm 170 mm cranks	68.4mm 170 mm cranks	76.3mm 170 mm cranks	86.4mm 170 mm cranks	75.3mm 170 mm cranks	85.2mm 170 mm cranks	97.1mm 170 mm cranks
Pedal Spindle to Ground Clearance	110mm 170 mm cranks	110mm 170 mm cranks	110mm 170 mm cranks	110mm 170 mm cranks	110mm 170 mm cranks	110mm 170 mm cranks	110mm 170 mm cranks

	45	49	52	54	56	58	60
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	700C/29 in 622 mm BSD
Tire Width	48mm	48mm	48mm	48mm	48mm	48mm	48mm
Tire Outer Diameter	718mm	718mm	718mm	718mm	718mm	718mm	718mm
Bike Length with Tires	1733.3mm	1735.9mm	1743.8mm	1754mm	1742.9mm	1752.9mm	1764.8mm

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.

Learn more about the Upright/Aggressive Scale

Category Trend

Progressive Gravel

Source:https://www.yoeleoeurope.com/de/products/altera-g21-gravel-frameset

Suggest Bike Edit

2025 Yoeleo Altera G21 DB Base

Geometry

Base Build

Stack and Reach vs. Category Trend