	Small	Medium	Large
Stack	633mm	642mm	656mm
Reach	430mm	450mm	470mm
Stack to Reach Ratio	1.47:1	1.43:1	1.4:1
Seat Tube Length, C-T	380mm	430mm	480mm
Top Tube Length, Effective/Horizontal HT Top	623.5mm	646.3mm	670.5mm
Top Tube Slope	26.5deg	21.8deg	17.9deg
Head Tube Angle	67deg	67deg	67deg
Seat Tube Angle	73deg	73deg	73deg
Head Tube Length	90mm	100mm	115mm
Bottom Bracket Drop	60mm	60mm	60mm
Bottom Bracket Height	312mm	312mm	312mm
Chainstay Length	450mm	450mm	450mm
Chainstay Length Horizontal	446mm	446mm	446mm
Front-Center	725mm	748mm	774mm
Front-Center Horizontal	722mm	746mm	772mm
Wheelbase	1168mm	1192mm	1218mm
Fork Offset/Rake	20mm	20mm	20mm
Fork Length, Unknown	546.5mm	546.5mm	546.5mm
Trail	136.2mm very high	136.2mm very high	136.2mm very high
Mechanical Trail	125.3mm	125.3mm	125.3mm
Wheel Flop	49mm	49mm	49mm
Standover Height	691mm	727mm	765mm
Tire to Pedal Spindle	183mm 170 mm cranks	206mm 170 mm cranks	232mm 170 mm cranks
Pedal Spindle to Ground Clearance	142mm 170 mm cranks	142mm 170 mm cranks	142mm 170 mm cranks

	Small	Medium	Large
Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	2.4in	2.4in	2.4in
Tire Width Max	2.6in	2.6in	2.6in
Tire Outer Diameter	743.9mm	743.9mm	743.9mm
Bike Length with Tires	1911.9mm	1935.9mm	1961.9mm
Crank Length	170mm	170mm	170mm
Stem Length	50mm	50mm	50mm

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 Trail MTB

Source:https://www.walmart.com/ip/29-MTB/17304924144?athAsset=eyJhdGhjcGlkIjoiMTczMDQ5MjQxNDQiLCJhdGhzdGlkIjoiQ1MwMjAiLCJhdGhhbmNpZCI6IjE3MzU5ODY0OTY1IiwiYXRocmsiOjAuMH0=&athena=true

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2026 Ozark Trail Ridge Pro

Geometry

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Stack and Reach vs. Category Trend