2020 Radon Bikes Spire Disc Carbon 57
Build
700C/29 in × 28 mm
Insights
Average stack and reach vs trend of endurance road bikes
Design deviates from other sizes of Radon Bikes Spire
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 559mm |
| Reach | 382mm |
| Stack to Reach Ratio | 1.46:1 |
| Seat Tube Length, Unknown | 530mm |
| Top Tube Length, Effective/Horizontal Unknown | 545mm |
| Top Tube Slope | 5.4deg |
| Head Tube Angle | 72.8deg |
| Seat Tube Angle | 73.8deg |
| Head Tube Length | 160mm |
| Bottom Bracket Drop | 71mm |
| Bottom Bracket Height | 268mm |
| Chainstay Length | 408mm |
| Chainstay Length Horizontal | 401.8mm |
| Front-Center | 585.6mm |
| Front-Center Horizontal | 581.2mm |
| Wheelbase | 983mm |
| Fork Offset/Rake | 46mm |
| Trail | 56.8mm mid/neutral |
| Mechanical Trail | 54.2mm |
| Wheel Flop | 16mm |
| Standover Height | 773mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 76.6mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 98mm |
Disc Carbon Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 28mm |
| Tire Outer Diameter | 678mm |
| Bike Length with Tires | 1661mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Carbon/Composite |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 178 cm to 184 cm |
Source:https://www.radon-bikes.de/fr/roadbike/carbon/spire-disc-carbon/spire-disc-80-2020/