2017 MASH Alleycat AC-1 58 X-Large
Build
700C/29 in × 28 mm
Insights
Very 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 | 575.6mm |
| Reach | 425.8mm |
| Stack to Reach Ratio | 1.35:1 |
| Seat Tube Length, C-T | 580mm |
| Seat Tube Length, C-C | 540mm |
| Top Tube Length, Effective/Horizontal Center | 580mm |
| Top Tube Length, Actual C-C | 580mm |
| Top Tube Slope | 0deg |
| Head Tube Angle | 75deg |
| Seat Tube Angle | 75deg |
| Head Tube Length | 160mm |
| Bottom Bracket Drop | 54mm |
| Bottom Bracket Height | 285mm |
| Chainstay Length | 389mm |
| Chainstay Length Horizontal | 385.2mm |
| Front-Center | 599mm |
| Front-Center Horizontal | 596.6mm |
| Wheelbase | 981.8mm |
| 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 | 90mm |
| 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 | 1659.8mm |
| 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