2021 Miracle Bike CR039 Base 490
Build
700C/29 in × 40 mm
Insights
Somewhat upright stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Miracle Bike CR039
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 535.2mm |
| Reach | 346mm |
| Stack to Reach Ratio | 1.55:1 |
| Seat Tube Length, C-TTT | 479mm |
| Top Tube Length, Effective/Horizontal Unknown | 520mm |
| Top Tube Slope | 6.6deg |
| Head Tube Angle | 69deg |
| Seat Tube Angle | 73.5deg |
| Head Tube Length | 115mm |
| Bottom Bracket Drop | 63mm |
| Bottom Bracket Height | 288mm |
| Chainstay Length | 425mm |
| Chainstay Length Horizontal | 420.3mm |
| Front-Center | 563mm |
| Front-Center Horizontal | 560.7mm |
| Wheelbase | 981mm |
| Fork Offset/Rake | 55mm |
| Fork Length, Unknown | 398mm |
| Trail | 75.8mm high |
| Mechanical Trail | 70.8mm |
| Wheel Flop | 25.4mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 42mm |
| 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 | 1683mm |
| 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