2018 Polygon Bikes Siskiu T7 M (27.5″)
Build
650B/27.5 in × 2.6 in
Insights
Average 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 | 599.7mm |
| Reach | 430mm |
| Stack to Reach Ratio | 1.39:1 |
| Seat Tube Length, Unknown | 435mm |
| Seat Tube Length, Effective Unknown | 74.5mm |
| Top Tube Length, Effective/Horizontal Center | 596.3mm |
| Top Tube Slope | 18.3deg |
| Head Tube Angle | 66deg |
| Seat Tube Angle | 68.5deg |
| Head Tube Length | 110mm |
| Bottom Bracket Drop | 20mm |
| Bottom Bracket Height | 338mm |
| Chainstay Length | 430mm |
| Chainstay Length Horizontal | 429.5mm |
| Front-Center | 738.7mm |
| Front-Center Horizontal | 738.5mm |
| Wheelbase | 1168mm |
| Fork Offset/Rake | 46mm |
| Trail | 109mm very high |
| Mechanical Trail | 99.6mm |
| Wheel Flop | 40.5mm |
| Standover Height | 695.1mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 210.7mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 168mm |
T7 Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.6in |
| Tire Outer Diameter | 716.1mm |
| Bike Length with Tires | 1884.1mm |
| Suspension Type | Full suspension |
| Bar Type | Flat Bar |
| Fork Travel | 150mm |
| Rear Travel | Unknown |
| Suspension Sag | Unknown |
| Frame Material | Aluminum |
| Fork Material | Aluminum |
| Brake Type | Rim |
Source:https://www.polygonbikes.com/product/mountain/siskiu-t7/