2017 MASH Alleycat AC-1 56 Large

Build

700C/29 in × 28 mm

Insights

Somewhat aggressive stack and reach vs trend of track/fixed-gear bikes
Design deviates from other sizes of MASH Alleycat

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
561.1mm
Reach
409.7mm
Stack to Reach Ratio
1.37:1
Seat Tube Length, C-T
560mm
Seat Tube Length, C-C
520mm
Top Tube Length, Effective/Horizontal Center
560mm
Top Tube Length, Actual C-C
560mm
Top Tube Slope
0deg
Head Tube Angle
75deg
Seat Tube Angle
75deg
Head Tube Length
145mm
Bottom Bracket Drop
54mm
Bottom Bracket Height
285mm
Chainstay Length
389mm
Chainstay Length Horizontal
385.2mm
Front-Center
579.1mm
Front-Center Horizontal
576.6mm
Wheelbase
961.8mm
Fork Offset/Rake
30mm
Fork Length (On-Axis)
368mm
Trail
59.8mm
mid/​neutral
Mechanical Trail
57.7mm
Wheel Flop
14.9mm
Tire to Pedal Spindle Distance
With 170 mm cranks
70.1mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
115mm

AC-1 Build

Wheel Size
700C, 29 inch (622mm BSD)
Tire Width
28mm
Tire Outer Diameter
678mm
Bike Length with Tires
1639.8mm
Suspension Type
Rigid, non-suspension corrected
Bar Type
Flat Bar
Frame Material
Aluminum
Fork Material
Carbon/Composite
Brake Type
Rim
Source:https://static.shoplightspeed.com/shops/616120/files/009240957/mash-ac-1-frameset-gamma.jpg