2017 MASH Alleycat AC-1 50 X-Small
Build
700C/29 in × 28 mm
Insights
Very upright 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 | 510.4mm |
| Reach | 339.1mm |
| Stack to Reach Ratio | 1.51:1 |
| Seat Tube Length, C-T | 500mm |
| Seat Tube Length, C-C | 460mm |
| Top Tube Length, Effective/Horizontal Center | 500mm |
| Top Tube Length, Actual C-C | 500mm |
| Top Tube Slope | 0deg |
| Head Tube Angle | 72.5deg |
| Seat Tube Angle | 72.5deg |
| Head Tube Length | 100mm |
| Bottom Bracket Drop | 54mm |
| Bottom Bracket Height | 285mm |
| Chainstay Length | 389mm |
| Chainstay Length Horizontal | 385.2mm |
| Front-Center | 517.3mm |
| Front-Center Horizontal | 514.4mm |
| Wheelbase | 899.7mm |
| Fork Offset/Rake | 30mm |
| Fork Length (On-Axis) | 368mm |
| Trail | 75.4mm high |
| Mechanical Trail | 71.9mm |
| Wheel Flop | 21.6mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 8.3mm |
| 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 | 1577.7mm |
| 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