2025 Origine Cycles Théorème 2 GTR Base

	S	S	M	M	L	L	XL	XL
Stack	598mm	598mm	608mm	608mm	622mm	622mm	636mm	636mm
Reach	412mm	412mm	434mm	434mm	454mm	454mm	475mm	475mm
Stack to Reach Ratio	1.45:1	1.45:1	1.4:1	1.4:1	1.37:1	1.37:1	1.34:1	1.34:1
Seat Tube Length, Unknown	395mm	395mm	435mm	435mm	475mm	475mm	525mm	525mm
Top Tube Length, Effective/Horizontal Unknown	580mm	580mm	605mm	605mm	630mm	630mm	655mm	655mm
Top Tube Slope	22.8deg	22.8deg	18.9deg	18.9deg	15.8deg	15.8deg	12deg	12deg
Head Tube Angle	68.5deg	68.5deg	68.5deg	68.5deg	68.5deg	68.5deg	68.5deg	68.5deg
Seat Tube Angle	74.3deg	74.3deg	74.3deg	74.3deg	74.2deg	74.2deg	74.2deg	74.2deg
Head Tube Length	90mm	90mm	100mm	100mm	115mm	115mm	130mm	130mm
Bottom Bracket Drop	60mm	60mm	60mm	60mm	60mm	60mm	60mm	60mm
Bottom Bracket Height	311mm	308.2mm	311mm	308.2mm	311mm	308.2mm	311mm	308.2mm
Chainstay Length	430mm	430mm	430mm	430mm	430mm	430mm	430mm	430mm
Chainstay Length Horizontal	425.8mm	425.8mm	425.8mm	425.8mm	425.8mm	425.8mm	425.8mm	425.8mm
Front-Center	44mm	673.9mm	44mm	699.8mm	44mm	724.7mm	44mm	751.6mm
Front-Center Horizontal	671.2mm	671.2mm	697.2mm	697.2mm	722.2mm	722.2mm	749.2mm	749.2mm
Wheelbase	1097mm	1097mm	1123mm	1123mm	1148mm	1148mm	1175mm	1175mm
Fork Offset/Rake	44mm	44mm	44.1mm	44mm	43.6mm	44mm	44mm	44mm
Trail	98.9mm very high	97.7mm very high	98.8mm very high	97.7mm very high	99.3mm very high	97.7mm very high	98.8mm very high	97.7mm very high
Mechanical Trail	92mm	90.9mm	91.9mm	90.9mm	92.4mm	90.9mm	92mm	90.9mm
Wheel Flop	33.7mm	33.3mm	33.7mm	33.3mm	33.9mm	33.3mm	33.7mm	33.3mm
Standover Height	150mm	—	160mm	—	175mm	—	190mm	—
Tire to Pedal Spindle	-497mm 170 mm cranks	135.7mm 170 mm cranks	-497mm 170 mm cranks	161.6mm 170 mm cranks	-497mm 170 mm cranks	186.5mm 170 mm cranks	-497mm 170 mm cranks	213.5mm 170 mm cranks
Pedal Spindle to Ground Clearance	141mm 170 mm cranks	138.2mm 170 mm cranks	141mm 170 mm cranks	138.2mm 170 mm cranks	141mm 170 mm cranks	138.2mm 170 mm cranks	141mm 170 mm cranks	138.2mm 170 mm cranks

	S	S	M	M	L	L	XL	XL
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	700C/29 in 622 mm BSD
Tire Width	60mm	2.25in	60mm	2.25in	60mm	2.25in	60mm	2.25in
Tire Outer Diameter	742mm	736.3mm	742mm	736.3mm	742mm	736.3mm	742mm	736.3mm
Bike Length with Tires	1839mm	1833.3mm	1865mm	1859.3mm	1890mm	1884.3mm	1917mm	1911.3mm

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

Hardtail Cross-country MTB

Source:https://www.origine-cycles.com/fr-BE/configurateur/velo-vtt-cross-country-2376570.html, https://www.origine-cycles.com/images/geometries/theoreme2.php?taillesDefinies=1&id_kitCadre=2315668&id_tailleCadre=300971&id_taillePotence=299097&id_taillePedalier=298614&hauteurChoisie=185

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2025 Origine Cycles Théorème 2 GTR Base

Geometry

Base Build

Stack and Reach vs. Category Trend