2021 Miracle Bike CR039 Base 540
Build
700C/29 in × 40 mm
Insights
Somewhat upright stack and reach vs trend of all-road/gravel bikes
Stack and Reach vs. Category Trend
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Geometry
| Stack | 571.2mm |
| Reach | 370mm |
| Stack to Reach Ratio | 1.54:1 |
| Seat Tube Length, C-TTT | 529mm |
| Top Tube Length, Effective/Horizontal Unknown | 555mm |
| Top Tube Slope | 5.1deg |
| Head Tube Angle | 70.5deg |
| Seat Tube Angle | 72.5deg |
| Head Tube Length | 153mm |
| Bottom Bracket Drop | 63mm |
| Bottom Bracket Height | 288mm |
| Chainstay Length | 425mm |
| Chainstay Length Horizontal | 420.3mm |
| Front-Center | 600mm |
| Front-Center Horizontal | 597.7mm |
| Wheelbase | 1018mm |
| Fork Offset/Rake | 55mm |
| Fork Length, Unknown | 398mm |
| Trail | 66mm high |
| Mechanical Trail | 62.2mm |
| Wheel Flop | 20.8mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 79mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 118mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 40mm |
| Tire Outer Diameter | 702mm |
| Bike Length with Tires | 1720mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Carbon/Composite |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:https://www.miraclecycling.com/gravel-cx-bike-frame/miracle-super-light-gravel-carbon-frame.html