	46	49	52	54	56	58	60	62	64
Stack	530mm	541mm	550mm	567mm	581mm	597mm	610mm	629mm	648mm
Reach	378mm	380mm	383mm	387mm	394mm	399mm	409mm	419mm	427mm
Stack to Reach Ratio	1.4:1	1.42:1	1.44:1	1.47:1	1.47:1	1.5:1	1.49:1	1.5:1	1.52:1
Seat Tube Length, C-T	440mm	460mm	480mm	500mm	515mm	530mm	545mm	565mm	585mm
Top Tube Length, Actual C-C	510mm	520mm	530mm	545mm	555mm	565mm	585mm	600mm	620mm
Top Tube Slope	12deg	11deg	9.7deg	9.4deg	9.2deg	9.2deg	8.8deg	8.6deg	8.4deg
Head Tube Angle	71deg	71.5deg	71.5deg	72deg	72deg	72.5deg	72.5deg	72.5deg	72.5deg
Seat Tube Angle	75.5deg	75deg	74.5deg	74deg	73.5deg	73.5deg	73.5deg	73deg	73deg
Head Tube Length	120mm	130mm	140mm	155mm	170mm	185mm	200mm	220mm	240mm
Bottom Bracket Drop	73mm	73mm	72mm	72mm	71mm	71mm	70mm	70mm	70mm
Bottom Bracket Height	278mm	278mm	279mm	279mm	280mm	280mm	281mm	281mm	281mm
Chainstay Length	422mm	422mm	422mm	422mm	422mm	422mm	422mm	422mm	422mm
Chainstay Length Horizontal	415.6mm	415.6mm	415.8mm	415.8mm	416mm	416mm	416.2mm	416.2mm	416.2mm
Front-Center	589mm	590mm	596mm	597mm	608mm	613mm	628mm	643mm	657mm
Front-Center Horizontal	584.4mm	585.4mm	591.2mm	593.2mm	604mm	609mm	623.9mm	638.9mm	653.9mm
Wheelbase	1000mm	1001mm	1007mm	1009mm	1020mm	1025mm	1040mm	1055mm	1070mm
Fork Offset/Rake	51mm	51mm	51mm	47mm	47mm	47mm	47mm	47mm	47mm
Fork Length (On-Axis)	380mm	380mm	380mm	380mm	380mm	380mm	380mm	380mm	380mm
Trail	66.9mm high	63.7mm mid/neutral	63.7mm mid/neutral	64.6mm mid/neutral	64.6mm mid/neutral	61.4mm mid/neutral	61.4mm mid/neutral	61.4mm mid/neutral	61.4mm mid/neutral
Mechanical Trail	63.3mm	60.4mm	60.4mm	61.5mm	61.5mm	58.6mm	58.6mm	58.6mm	58.6mm
Wheel Flop	20.6mm	19.2mm	19.2mm	19mm	19mm	17.6mm	17.6mm	17.6mm	17.6mm
Standover Height	675mm	700mm	725mm	750mm	775mm	800mm	825mm	850mm	875mm
Tire to Pedal Spindle	78mm 160 mm cranks	79mm 160 mm cranks	85mm 160 mm cranks	81mm 165 mm cranks	92mm 165 mm cranks	97mm 165 mm cranks	107mm 170 mm cranks	122mm 170 mm cranks	136mm 170 mm cranks
Pedal Spindle to Ground Clearance	118mm 160 mm cranks	118mm 160 mm cranks	119mm 160 mm cranks	114mm 165 mm cranks	115mm 165 mm cranks	115mm 165 mm cranks	111mm 170 mm cranks	111mm 170 mm cranks	111mm 170 mm cranks

	46	49	52	54	56	58	60	62	64
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	700C/29 in 622 mm BSD
Tire Width	40mm	40mm	40mm	40mm	40mm	40mm	40mm	40mm	40mm
Tire Outer Diameter	702mm	702mm	702mm	702mm	702mm	702mm	702mm	702mm	702mm
Bike Length with Tires	1702mm	1703mm	1709mm	1711mm	1722mm	1727mm	1742mm	1757mm	1772mm
Crank Length	160mm	160mm	160mm	165mm	165mm	165mm	170mm	170mm	170mm
Handlebar Width	380mm	380mm	380mm	400mm	400mm	400mm	420mm	420mm	420mm
Stem Length	80mm	90mm	100mm	100mm	100mm	100mm	100mm	100mm	100mm

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

Endurance Road

Source:https://blackheartbikeco.com/collections/road-ti-bikes-copy/products/road-ti_frameset?variant=46981417369753

Suggest Bike Edit

2026 Black Heart Bike Co Road Plus Ti Base

Geometry

Base Build

Stack and Reach vs. Category Trend