2020 Black Mountain Cycles Monster Cross Disc 650b XL (56cm)
Build
650B/27.5 in × 47 mm
Insights
Very upright stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Black Mountain Cycles Monster Cross Disc
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 648mm |
| Reach | 390mm |
| Stack to Reach Ratio | 1.66:1 |
| Seat Tube Length, C-T | 560mm |
| Top Tube Length, Effective/Horizontal Center | 595mm |
| Top Tube Slope | 11.5deg |
| Head Tube Angle | 72deg |
| Seat Tube Angle | 72.5deg |
| Head Tube Length | 200mm |
| Bottom Bracket Drop | 70mm |
| Bottom Bracket Height | 269mm |
| Chainstay Length | 438mm |
| Chainstay Length Max | 438mm |
| Chainstay Length Horizontal | 432.4mm |
| Chainstay Length Horizontal Max | 432.4mm |
| Front-Center | 635mm |
| Front-Center Horizontal | 627.6mm |
| Wheelbase | 1060mm |
| Wheelbase Max | 1060mm |
| Fork Offset/Rake | 50mm |
| Fork Length (On-Axis) | 410mm |
| Trail | 57.6mm mid/neutral |
| Mechanical Trail | 54.8mm |
| Wheel Flop | 16.9mm |
| Standover Height | 851mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 126mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 99mm |
650b Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 47mm |
| Tire Outer Diameter | 678mm |
| Bike Length with Tires | 1738mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 6 ft 0 in to 6 ft 3 in |
Source:https://blackmtncycles.com/tech-info/mcd-frame-tech/