2021 Polygon Bikes Siskiu T7 M(29″)
Build
700C/29 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
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Geometry
| Stack | 607.6mm |
| Reach | 460mm |
| Stack to Reach Ratio | 1.32:1 |
| Seat Tube Length, Unknown | 400mm |
| Top Tube Length, Effective/Horizontal HT Top | 605.9mm |
| Head Tube Angle | 65.5deg |
| Effective Seat Tube Angle, Unknown | 76.5deg |
| Head Tube Length | 90mm |
| Bottom Bracket Drop | 39mm |
| Bottom Bracket Height | 333mm |
| Chainstay Length | 430mm |
| Chainstay Length Horizontal | 428.2mm |
| Front-Center | 766.3mm |
| Front-Center Horizontal | 765.3mm |
| Wheelbase | 1193.5mm |
| Fork Offset/Rake | 51mm |
| Trail | 113.5mm very high |
| Mechanical Trail | 103.3mm |
| Wheel Flop | 42.8mm |
| Standover Height | 676.6mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 224.3mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 163mm |
T7 Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 2.4in |
| Tire Outer Diameter | 743.9mm |
| Bike Length with Tires | 1937.4mm |
| Crank Length | 170mm |
| Handlebar Width | 780mm |
| Stem Length | 35mm |
| Suspension Type | Full suspension |
| Bar Type | Flat Bar |
| Fork Travel | 150mm |
| Rear Travel | 140mm |
| Suspension Sag | Unknown |
| Frame Material | Aluminum |
| Fork Material | Unknown |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 168 cm to 176 cm |
Source:https://www.bicyclesonline.com.au/2021-polygon-siskiu-t7-dual-suspension-mountain-bi