2022 Specialized Bicycles Rockhopper Expert

	XS	S	M	Large
Stack	559mm	573mm	589mm	626mm
Reach	375mm	395mm	415mm	445mm
Stack to Reach Ratio	1.49:1	1.45:1	1.42:1	1.41:1
Seat Tube Length, C-T	310mm	350mm	400mm	—
Seat Tube Length, Unknown	300mm	350mm	400mm	450mm
Top Tube Length, Effective/Horizontal Center	541mm	565mm	589mm	—
Top Tube Length, Effective/Horizontal Unknown	—	—	—	630mm
Top Tube Slope	29.5deg	25.7deg	21.2deg	18.8deg
Head Tube Angle	68deg	68deg	68deg	68.5deg
Seat Tube Angle	73.5deg	73.5deg	73.5deg	73.5deg
Head Tube Length	95mm	100mm	105mm	105mm
Bottom Bracket Drop	43mm	43mm	43mm	62mm
Bottom Bracket Height	308.7mm	308.7mm	308.7mm	308.7mm
Chainstay Length	440mm	440mm	440mm	440mm
Chainstay Length Horizontal	437.9mm	437.9mm	437.9mm	435.6mm
Front-Center	630mm	656mm	682mm	719mm
Front-Center Horizontal	629.1mm	654.1mm	680.1mm	716.4mm
Wheelbase	1067mm	1092mm	1118mm	1152mm
Fork Offset/Rake	42mm	42mm	42mm	46mm
Fork Length, Unknown	475mm	485mm	495mm	515mm
Trail	96.8mm very high	96.8mm very high	96.8mm very high	96.6mm very high
Mechanical Trail	89.8mm	89.8mm	89.8mm	89.9mm
Wheel Flop	33.6mm	33.6mm	33.6mm	32.9mm
Standover Height	658mm	695mm	735mm	781mm
Tire to Pedal Spindle	113.3mm 165 mm cranks	134.3mm 170 mm cranks	160.3mm 170 mm cranks	173.3mm 175 mm cranks
Pedal Spindle to Ground Clearance	143.7mm 165 mm cranks	138.7mm 170 mm cranks	138.7mm 170 mm cranks	133.7mm 175 mm cranks

	XS	S	M	Large
Wheel Size	650B/27.5 in 584 mm BSD	650B/27.5 in 584 mm BSD	650B/27.5 in 584 mm BSD	700C/29 in 622 mm BSD
Tire Width	2.35in	2.35in	2.35in	2.35in
Tire Width Max	—	—	—	2.4mm
Tire Outer Diameter	703.4mm	703.4mm	703.4mm	741.4mm
Bike Length with Tires	1770.4mm	1795.4mm	1821.4mm	1893.4mm
Crank Length	165mm	170mm	170mm	175mm
Handlebar Width	700mm	720mm	740mm	740mm
Stem Length	40mm	40mm	60mm	60mm
Stem Angle	—	—	—	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

Hardtail Cross-country MTB

Source:https://www.specialized.com/ch/en/rockhopper-expert-27-5/p/199571?color=319828-199571&searchText=91522-3702, https://www.specialized.com/us/en/rockhopper-expert-29/p/199569?color=319662-199569

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2022 Specialized Bicycles Rockhopper Expert

Geometry

Expert Build

Stack and Reach vs. Category Trend