2024 Polygon Bikes Siskiu T7 S (27.5″)
Build
650B/27.5 in × 2.4 in
Insights
Somewhat aggressive stack and reach vs trend of full-suspension trail mtb bikes
Design deviates from other sizes of Polygon Bikes Siskiu
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 593.5mm |
| Reach | 440mm |
| Stack to Reach Ratio | 1.35:1 |
| Seat Tube Length, C-T | 385mm |
| Seat Tube Length, Effective Unknown | 76.5mm |
| Top Tube Length, Effective/Horizontal Center | 582.5mm |
| Top Tube Slope | 22.1deg |
| Head Tube Angle | 65deg |
| Seat Tube Angle | 71deg |
| Head Tube Length | 105mm |
| Bottom Bracket Drop | 18mm |
| Bottom Bracket Height | 335mm |
| Chainstay Length | 425mm |
| Chainstay Length Horizontal | 424.6mm |
| Front-Center | 748.4mm |
| Front-Center Horizontal | 748.2mm |
| Wheelbase | 1172.8mm |
| Fork Offset/Rake | 36.1mm |
| Trail | 124.8mm very high |
| Mechanical Trail | 113.1mm |
| Wheel Flop | 47.8mm |
| Standover Height | 666.6mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 225.4mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 165mm |
T7 Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.4in |
| Tire Outer Diameter | 705.9mm |
| Bike Length with Tires | 1878.7mm |
| Suspension Type | Full suspension |
| Bar Type | Drop Bar |
| Fork Travel | 140mm |
| Rear Travel | 135mm |
| Suspension Sag | Unknown |
| Frame Material | Aluminum |
| Fork Material | Unknown |
| Brake Type | Unknown |
Published Sizing Recommendations
| Height | 12 ft 11 in to |
Source:https://www.polygonbikes.com/pl/siskiu-t7/