	44	47	50	53	55	57	61	59
Stack	481mm	490mm	514.2mm	525mm	559.6mm	574mm	608.7mm	591.4mm
Reach	376mm	379mm	379.1mm	385mm	393.2mm	394.9mm	388.1mm	394.7mm
Stack to Reach Ratio	1.28:1	1.29:1	1.36:1	1.36:1	1.42:1	1.45:1	1.57:1	1.5:1
Seat Tube Length, C-T	420mm	440mm	470mm	500mm	520mm	540mm	580mm	560mm
Top Tube Length, Effective/Horizontal HT Top	505mm	515mm	525mm	535mm	550mm	560mm	585mm	575mm
Top Tube Slope	8.8deg	7.6deg	—	4.9deg	—	—	—	—
Head Tube Angle	70.5deg	70.5deg	71.5deg	72deg	73.5deg	73.5deg	72.5deg	73deg
Seat Tube Angle	75deg	74.5deg	74.5deg	74deg	73.5deg	73.5deg	72.5deg	73deg
Head Tube Length	95mm	105mm	110mm	125mm	140mm	155mm	195mm	175mm
Bottom Bracket Drop	58mm	58mm	58mm	68mm	68mm	68mm	68mm	68mm
Bottom Bracket Height	281mm	281mm	281mm	271mm	271mm	271mm	271mm	271mm
Chainstay Length	410mm	410mm	410mm	410mm	410mm	410mm	414mm	412mm
Chainstay Length Horizontal	405.9mm	405.9mm	405.9mm	404.3mm	404.3mm	404.3mm	408.4mm	406.4mm
Front-Center	575mm	581mm	582mm	583mm	588mm	593mm	607mm	603mm
Front-Center Horizontal	571.1mm	576.1mm	577.1mm	579.7mm	583.7mm	589.7mm	603.6mm	599.7mm
Wheelbase	977mm	982mm	983mm	984mm	988mm	994mm	1012mm	1006mm
Fork Offset/Rake	43mm	43mm	43mm	43mm	43mm	43mm	43mm	43mm
Fork Length, Unknown	368mm	368mm	368mm	368mm	368mm	368mm	368mm	368mm
Trail	74.4mm high	74.4mm high	68.1mm high	64.9mm mid/neutral	55.6mm mid/neutral	55.6mm mid/neutral	61.8mm mid/neutral	58.7mm mid/neutral
Mechanical Trail	70.2mm	70.2mm	64.6mm	61.8mm	53.3mm	53.3mm	58.9mm	56.1mm
Wheel Flop	23.4mm	23.4mm	20.5mm	19.1mm	15.1mm	15.1mm	17.7mm	16.4mm
Tire to Pedal Spindle	71mm 165 mm cranks	72mm 170 mm cranks	73mm 170 mm cranks	74mm 170 mm cranks	76.5mm 172.5 mm cranks	81.5mm 172.5 mm cranks	93mm 175 mm cranks	91.5mm 172.5 mm cranks
Pedal Spindle to Ground Clearance	116mm 165 mm cranks	111mm 170 mm cranks	111mm 170 mm cranks	101mm 170 mm cranks	98.5mm 172.5 mm cranks	98.5mm 172.5 mm cranks	96mm 175 mm cranks	98.5mm 172.5 mm cranks

	44	47	50	53	55	57	61	59
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	28mm	28mm	28mm	28mm	28mm	28mm	28mm	28mm
Tire Outer Diameter	678mm	678mm	678mm	678mm	678mm	678mm	678mm	678mm
Bike Length with Tires	1655mm	1660mm	1661mm	1662mm	1666mm	1672mm	1690mm	1684mm
Crank Length	165mm	170mm	170mm	170mm	172.5mm	172.5mm	175mm	172.5mm
Handlebar Width	400mm	400mm	400mm	400mm	420mm	420mm	440mm	440mm
Stem Length	80mm	90mm	90mm	100mm	110mm	110mm	120mm	120mm
Stem Angle	-7deg	-7deg	-7deg	-7deg	-7deg	-7deg	-7deg	-7deg

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

Performance Road

Source:https://www.bianchi.com/store/fr_EN/ytb8d-oltrerace-10512sp-5.html

Suggest Bike Edit

2026 Bianchi Oltre Race Base

Geometry

Base Build

Stack and Reach vs. Category Trend