2026 Polygon Bikes Collosus T8 XL
Build
700C/29 in × 2.4 in
Insights
Average stack and reach vs trend of full-suspension trail mtb bikes
Design deviates from other sizes of Polygon Bikes Collosus
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 640mm |
| Reach | 505mm |
| Stack to Reach Ratio | 1.27:1 |
| Seat Tube Length, C-T | 430mm |
| Seat Tube Length, Effective Unknown | 77mm |
| Top Tube Length, Effective/Horizontal Center | 646mm |
| Top Tube Slope | 19.9deg |
| Head Tube Angle | 64.5deg |
| Seat Tube Angle | 71deg |
| Head Tube Length | 120mm |
| Bottom Bracket Drop | 38mm |
| Bottom Bracket Height | 334mm |
| Chainstay Length | 435mm |
| Chainstay Length Horizontal | 433.3mm |
| Front-Center | 841.5mm |
| Front-Center Horizontal | 840.7mm |
| Wheelbase | 1274mm |
| Fork Offset/Rake | 43.8mm |
| Trail | 128.9mm very high |
| Mechanical Trail | 116.3mm |
| Wheel Flop | 50.1mm |
| Standover Height | 704mm |
| Tire to Pedal Spindle Distance With 165 mm cranks | 304.6mm |
| Pedal Spindle to Ground Clearance With 165 mm cranks | 169mm |
T8 Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 2.4in |
| Tire Outer Diameter | 743.9mm |
| Bike Length with Tires | 2017.9mm |
| Crank Length | 165mm |
| Handlebar Width | 780mm |
| Stem Length | 35mm |
| Suspension Type | Full suspension |
| Bar Type | Flat Bar |
| Fork Travel | 160mm |
| Rear Travel | 140mm |
| Suspension Sag | Unknown |
| Frame Material | Carbon/Composite |
| Fork Material | Unknown |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 6 ft 1 in to 6 ft 5 in |
Source:https://bikesonline.com/products/polygon-collosus-t8-carbon-all-mountain-bike?variant=51181884014884