2024 Bastion Cycles Road Curated Base - Bike Insights

Somewhat aggressive stack and reachvs category

Somewhat aggressive stack and reachvs category

Average stack and reachvs category

Average stack and reachvs category

Average stack and reachvs category

Somewhat upright stack and reachvs category

	XXS	XS	S	M	L	XL
Stack	505mm	530mm	556mm	573mm	590mm	624mm
Reach	372mm	376mm	378mm	380mm	382mm	386mm
Stack to Reach Ratio	1.36:1	1.41:1	1.47:1	1.51:1	1.54:1	1.62:1
Seat Tube Length, C-T	430mm	472mm	492mm	514mm	537mm	580mm
Top Tube Length, Effective/Horizontal HT Top	503mm	524mm	534mm	544mm	555mm	576mm
Top Tube Slope	10deg	9deg	8.5deg	8deg	7.5deg	6.5deg
Head Tube Angle	72.4deg	72.8deg	72.9deg	73.2deg	73.2deg	73deg
Seat Tube Angle	75.5deg	74.6deg	74.3deg	74deg	73.7deg	73.1deg
Head Tube Length	95mm	129mm	147mm	162mm	180mm	216mm
Bottom Bracket Height	—	—	—	—	—	—
Chainstay Length	412mm	415mm	418mm	418mm	418mm	418mm
Wheelbase	974mm	985mm	991mm	990mm	997mm	1014mm
Fork Offset/Rake	50mm	50mm	50mm	45mm	45mm	45mm
Trail	54.1mm mid/neutral	51.7mm mid/neutral	51.1mm mid/neutral	54.4mm mid/neutral	54.4mm mid/neutral	55.7mm mid/neutral
Mechanical Trail	51.6mm	49.4mm	48.8mm	52.1mm	52.1mm	53.2mm
Wheel Flop	15.6mm	14.6mm	14.4mm	15.1mm	15.1mm	15.6mm

	XXS	XS	S	M	L	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
Tire Width	25mm	25mm	25mm	25mm	25mm	25mm
Tire Outer Diameter	672mm	672mm	672mm	672mm	672mm	672mm
Bike Length with Tires	1646mm	1657mm	1663mm	1662mm	1669mm	1686mm

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

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