2021 Giant Bicycles Ten Base 420 (M)
Build
20 in (406) × 1.5 in
Insights
Very upright stack and reach vs trend of mini-velo/folding bikes
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 563mm |
| Reach | 364mm |
| Stack to Reach Ratio | 1.55:1 |
| Seat Tube Length, C-T | 420mm |
| Top Tube Length, Effective/Horizontal HT Top | 580mm |
| Top Tube Slope | 18.4deg |
| Head Tube Angle | 69deg |
| Seat Tube Angle | 69deg |
| Head Tube Length | 336mm |
| Bottom Bracket Drop | -35mm |
| Bottom Bracket Height | 276.1mm |
| Chainstay Length | 410mm |
| Chainstay Length Horizontal | 408.5mm |
| Front-Center | 637.5mm |
| Front-Center Horizontal | 636.5mm |
| Wheelbase | 1045mm |
| Fork Offset/Rake | 40.1mm |
| Trail | 49.6mm mid/neutral |
| Mechanical Trail | 46.3mm |
| Wheel Flop | 16.6mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 226.4mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 106.1mm |
Base Build
| Wheel Size | 20 inch (406 BSD, BMX/Kids) (406mm BSD) |
| Tire Width | 1.5in |
| Tire Outer Diameter | 482.2mm |
| Bike Length with Tires | 1527.2mm |
| Crank Length | 170mm |
| Handlebar Width | 580mm |
| Stem Length | 60mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Flat Bar |
| Frame Material | Aluminum |
| Fork Material | Aluminum |
| Brake Type | Rim |
Published Sizing Recommendations
| Height | 150 cm to 180 cm |
Source:https://www.giant.co.jp/giant21/bike_datail.php?p_id=00000044