2017 MASH Alleycat AC-1

Very upright stack and reachvs category

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	52 Small	54 Medium	56 Large	58 X-Large	61 XX-Large
Stack	472.1mm	493.8mm	514.4mm	536.1mm	555.4mm	584.4mm
Reach	351.2mm	373.7mm	392.8mm	416.4mm	431.2mm	453.4mm
Stack to Reach Ratio	1.34:1	1.32:1	1.31:1	1.29:1	1.29:1	1.29:1
Seat Tube Length, C-T	500mm	520mm	540mm	560mm	580mm	610mm
Seat Tube Length, C-C	460mm	480mm	500mm	520mm	540mm	570mm
Top Tube Length, Effective/Horizontal Center	500mm	520mm	540mm	560mm	580mm	610mm
Top Tube Length, Actual C-C	500mm	520mm	540mm	560mm	580mm	610mm
Top Tube Slope	0deg	0deg	0deg	0deg	0deg	0deg
Head Tube Angle	72.5deg	73.5deg	74.5deg	75deg	75deg	75deg
Seat Tube Angle	72.5deg	73.5deg	74deg	75deg	75deg	75deg
Head Tube Length	100mm	110mm	125mm	145mm	160mm	190mm
Bottom Bracket Drop	54mm	54mm	54mm	54mm	54mm	54mm
Bottom Bracket Height	285mm	285mm	285mm	285mm	285mm	285mm
Chainstay Length	389mm	389mm	389mm	389mm	389mm	389mm
Chainstay Length Horizontal	385.2mm	385.2mm	385.2mm	385.2mm	385.2mm	385.2mm
Front-Center	517.3mm	538mm	554.3mm	579.1mm	599mm	628.9mm
Front-Center Horizontal	514.4mm	535.3mm	551.6mm	576.6mm	596.6mm	626.6mm
Wheelbase	899.7mm	920.5mm	936.9mm	961.8mm	981.8mm	1011.8mm
Fork Offset/Rake	30mm	30mm	30mm	30mm	30mm	30mm
Fork Length (On-Axis)	368mm	368mm	368mm	368mm	368mm	368mm
Trail	75.4mm high	69.1mm high	62.9mm mid/neutral	59.8mm mid/neutral	59.8mm mid/neutral	59.8mm mid/neutral
Mechanical Trail	71.9mm	66.3mm	60.6mm	57.7mm	57.7mm	57.7mm
Wheel Flop	21.6mm	18.8mm	16.2mm	14.9mm	14.9mm	14.9mm
Tire to Pedal Spindle	8.3mm 170 mm cranks	29mm 170 mm cranks	45.3mm 170 mm cranks	70.1mm 170 mm cranks	90mm 170 mm cranks	119.9mm 170 mm cranks
Pedal Spindle to Ground Clearance	115mm 170 mm cranks	115mm 170 mm cranks	115mm 170 mm cranks	115mm 170 mm cranks	115mm 170 mm cranks	115mm 170 mm cranks

	50 X-Small	52 Small	54 Medium	56 Large	58 X-Large	61 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	28mm	28mm	28mm	28mm	28mm	28mm
Tire Outer Diameter	678mm	678mm	678mm	678mm	678mm	678mm
Bike Length with Tires	1577.7mm	1598.5mm	1614.9mm	1639.8mm	1659.8mm	1689.8mm

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://static.shoplightspeed.com/shops/616120/files/009240957/mash-ac-1-frameset-gamma.jpg

Suggest Bike Edit

2017 MASH Alleycat AC-1

Geometry

AC-1 Build

Stack and Reach vs. Category Trend