2021 Frog Bikes 52 Base 52
Build
20 in (406) × 47 mm
Insights
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Seat Tube Length, C-T | 250mm |
| Top Tube Length, Effective/Horizontal Center | 445mm |
| Head Tube Angle | 71deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 100mm |
| Bottom Bracket Drop | -1mm |
| Bottom Bracket Height | 251mm |
| Chainstay Length | 375mm |
| Chainstay Length Horizontal | 375mm |
| Front-Center | 504mm |
| Front-Center Horizontal | 504mm |
| Wheelbase | 879mm |
| Trail | — — |
| Tire to Pedal Spindle Distance With 102 mm cranks | 152mm |
| Pedal Spindle to Ground Clearance With 102 mm cranks | 149mm |
Base Build
| Wheel Size | 20 inch (406 BSD, BMX/Kids) (406mm BSD) |
| Tire Width | 47mm |
| Tire Outer Diameter | 500mm |
| Bike Length with Tires | 1379mm |
| Crank Length | 102mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Flat Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Rim |
Source:https://www.cyclesprog.co.uk/news/frog-20-wheel-bike-range/attachment/frog-52-geometry/