2019 Chromag Bikes Rootdown Base M
Build
650B/27.5 in × 2.8 in
Insights
Average stack and reach vs trend of hardtail all-mountain/enduro mtb bikes
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
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Geometry
| Stack | 630mm |
| Reach | 433mm |
| Stack to Reach Ratio | 1.45:1 |
| Seat Tube Length, C-T | 419mm |
| Top Tube Length, Effective/Horizontal HT Top | 590mm |
| Top Tube Slope | 22.7deg |
| Head Tube Angle | 64deg |
| Seat Tube Angle | 76deg |
| Head Tube Length | 95mm |
| Bottom Bracket Drop | 51mm |
| Bottom Bracket Height | 312.1mm |
| Chainstay Length | 415mm |
| Chainstay Length Horizontal | 411.9mm |
| Front-Center | 773.8mm |
| Front-Center Horizontal | 772.2mm |
| Wheelbase | 1184mm |
| Fork Offset/Rake | 51mm |
| Trail | 120.4mm very high |
| Mechanical Trail | 108.2mm |
| Wheel Flop | 47.4mm |
| Standover Height | 727mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 240.7mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 142.1mm |
Base Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.8in |
| Tire Outer Diameter | 726.2mm |
| Bike Length with Tires | 1910.2mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Flat Bar |
| Fork Travel | 160mm |
| Suspension Sag | Unknown |
| Frame Material | Steel |
| Fork Material | Unknown |
| Brake Type | Disc |
Source:https://chromagbikes.com/products/frames-rootdown-19