2021 Polygon Bikes Xtrada 7 M 27.5"
Build
650B/27.5 in × 2.25 in
Insights
Somewhat aggressive stack and reach vs trend of hardtail cross-country mtb bikes
Design deviates from other sizes of Polygon Bikes Xtrada
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 599mm |
| Reach | 430mm |
| Stack to Reach Ratio | 1.39:1 |
| Seat Tube Length, C-T | 425mm |
| Top Tube Length, Effective/Horizontal Center | 590mm |
| Top Tube Slope | 19.2deg |
| Head Tube Angle | 67deg |
| Seat Tube Angle | 75deg |
| Head Tube Length | 100mm |
| Bottom Bracket Drop | 45mm |
| Bottom Bracket Height | 304.2mm |
| Chainstay Length | 425mm |
| Chainstay Length Horizontal | 422.6mm |
| Front-Center | 706.8mm |
| Front-Center Horizontal | 705.4mm |
| Wheelbase | 1128mm |
| Fork Offset/Rake | 37mm |
| Trail | 108mm very high |
| Mechanical Trail | 99.4mm |
| Wheel Flop | 38.8mm |
| Standover Height | 697mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 187.7mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 134.2mm |
7 Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.25in |
| Tire Outer Diameter | 698.3mm |
| Bike Length with Tires | 1826.3mm |
| Crank Length | 170mm |
| Handlebar Width | 760mm |
| Stem Length | 40mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Flat Bar |
| Fork Travel | 120mm |
| Suspension Sag | 25% |
| Frame Material | Aluminum |
| Fork Material | Aluminum |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 168 cm to 177 cm |
Source:https://www.bicyclesonline.com.au/2021-polygon-xtrada-7-1x12-mountain-bike