2019 Miracle Bike GR028/GR029 Base 58cm
Build
700C/29 in × 25 mm
Insights
Average stack and reach vs trend of cyclocross bikes
Design deviates from other sizes of Miracle Bike GR028/GR029
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 582mm |
| Reach | 392mm |
| Stack to Reach Ratio | 1.48:1 |
| Seat Tube Length, C-T | 560mm |
| Top Tube Length, Effective/Horizontal Center | 575mm |
| Top Tube Slope | 4.8deg |
| Head Tube Angle | 72deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 160mm |
| Bottom Bracket Drop | 65mm |
| Bottom Bracket Height | 271mm |
| Chainstay Length | 425mm |
| Chainstay Length Horizontal | 420mm |
| Front-Center | 620mm |
| Front-Center Horizontal | 619mm |
| Wheelbase | 1039mm |
| Fork Offset/Rake | 45mm |
| Fork Length, Unknown | 396mm |
| Trail | 61.9mm mid/neutral |
| Mechanical Trail | 58.8mm |
| Wheel Flop | 18.2mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 114mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 101mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 25mm |
| Tire Outer Diameter | 672mm |
| Bike Length with Tires | 1711mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Carbon/Composite |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:http://miraclebikes.com/Product/detail/id/37.html