2021 MASH Steel Frameset

Somewhat upright stack and reachvs category

Average stack and reachvs category

Somewhat aggressive stack and reachvs category

Very aggressive stack and reachvs category

	50 X-Small	53 Small	55 Medium	57 Large	60 X-Large	62 XX-Large
Stack	502mm	514mm	525mm	549mm	572mm	580mm
Reach	370mm	392mm	404mm	423mm	436mm	448mm
Stack to Reach Ratio	1.36:1	1.31:1	1.3:1	1.3:1	1.31:1	1.29:1
Seat Tube Length, C-T	520mm	540mm	560mm	580mm	600mm	620mm
Seat Tube Length, C-C	485mm	500mm	520mm	540mm	560mm	600mm
Top Tube Length, Unknown	500mm	530mm	550mm	570mm	600mm	620mm
Top Tube Slope	0deg	0deg	0deg	0deg	0deg	0deg
Head Tube Angle	72.5deg	73.5deg	74deg	74.5deg	75deg	75.5deg
Seat Tube Angle	75.5deg	75deg	74.5deg	74deg	74deg	73.5deg
Head Tube Length	100mm	110mm	120mm	143mm	165mm	172mm
Bottom Bracket Drop	54mm	54mm	54mm	54mm	54mm	54mm
Bottom Bracket Height	295mm	295mm	295mm	295mm	295mm	295mm
Chainstay Length	390mm	390mm	390mm	390mm	390mm	390mm
Chainstay Length Horizontal	386.2mm	386.2mm	386.2mm	386.2mm	386.2mm	386.2mm
Front-Center	550.6mm	567.3mm	578mm	599mm	613.4mm	622.5mm
Front-Center Horizontal	548mm	564.8mm	575.5mm	596.6mm	611mm	620.2mm
Wheelbase	934.2mm	951mm	961.7mm	982.8mm	997.3mm	1006.4mm
Fork Offset/Rake	35mm	35mm	35mm	35mm	35mm	35mm
Fork Length (On-Axis)	380mm	380mm	380mm	380mm	380mm	380mm
Trail	73.3mm high	66.9mm high	63.7mm mid/neutral	60.5mm mid/neutral	57.3mm mid/neutral	54.1mm mid/neutral
Mechanical Trail	70mm	64.1mm	61.2mm	58.3mm	55.3mm	52.4mm
Wheel Flop	21mm	18.2mm	16.9mm	15.6mm	14.3mm	13.1mm
Standover Height	802mm	814mm	825mm	849mm	872mm	880mm
Tire to Pedal Spindle	31.6mm 170 mm cranks	48.3mm 170 mm cranks	59mm 170 mm cranks	80mm 170 mm cranks	94.4mm 170 mm cranks	103.5mm 170 mm cranks
Pedal Spindle to Ground Clearance	125mm 170 mm cranks	125mm 170 mm cranks	125mm 170 mm cranks	125mm 170 mm cranks	125mm 170 mm cranks	125mm 170 mm cranks

	50 X-Small	53 Small	55 Medium	57 Large	60 X-Large	62 XX-Large
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	38mm	38mm	38mm	38mm	38mm	38mm
Tire Width Max	38mm	38mm	38mm	38mm	38mm	38mm
Tire Outer Diameter	698mm	698mm	698mm	698mm	698mm	698mm
Bike Length with Tires	1632.2mm	1649mm	1659.7mm	1680.8mm	1695.3mm	1704.4mm

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

Track/Fixed-gear

Source:https://www.mashsf.com/wp-content/uploads/2020/09/Mash_Steel3_geo_Stack_Reach_web-1024x534.jpg

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2021 MASH Steel Frameset

Geometry

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Stack and Reach vs. Category Trend