2026 Polygon Bikes Collosus T8
- Category
- Full-suspension Trail MTB
- Design
- Flat Bar, Full suspension
- Frame
- Carbon/Composite
- Suspension
- 160mm fork travel, 140mm rear travel
- Features
- Disc brake
Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry |
Geometry
S | M | L | XL | |
Stack | 613mm | 618mm | 627mm | 640mm |
Reach | 440mm | 465mm | 485mm | 505mm |
Stack to Reach Ratio | 1.39:1 | 1.33:1 | 1.29:1 | 1.27:1 |
Seat Tube Length, C-T | 390mm | 400mm | 415mm | 430mm |
Seat Tube Length, Effective Unknown | 77mm | 77mm | 77mm | 77mm |
Top Tube Length, Effective/Horizontal Center | 572mm | 598mm | 621mm | 646mm |
Top Tube Slope | 23.3deg | 21.9deg | 20.7deg | 19.9deg |
Head Tube Angle | 64.5deg | 64.5deg | 64.5deg | 64.5deg |
Seat Tube Angle | 71deg | 71deg | 71deg | 71deg |
Head Tube Length | 90mm | 95mm | 105mm | 120mm |
Bottom Bracket Drop | 38mm | 38mm | 38mm | 38mm |
Bottom Bracket Height | 334mm | 334mm | 334mm | 334mm |
Chainstay Length | 430mm | 430mm | 435mm | 435mm |
Chainstay Length Horizontal | 428.3mm | 428.3mm | 433.3mm | 433.3mm |
Front-Center | 764.6mm | 791.6mm | 815.6mm | 841.5mm |
Front-Center Horizontal | 763.7mm | 790.7mm | 814.7mm | 840.7mm |
Wheelbase | 1192mm | 1219mm | 1248mm | 1274mm |
Fork Offset/Rake | 44.6mm | 44.3mm | 44mm | 43.8mm |
Trail | 128mm very high | 128.4mm very high | 128.7mm very high | 128.9mm very high |
Mechanical Trail | 115.5mm | 115.9mm | 116.2mm | 116.3mm |
Wheel Flop | 49.7mm | 49.9mm | 50mm | 50.1mm |
Standover Height | 687mm | 691mm | 704mm | 704mm |
Tire to Pedal Spindle | 227.7mm 165 mm cranks | 254.6mm 165 mm cranks | 278.6mm 165 mm cranks | 304.6mm 165 mm cranks |
Pedal Spindle to Ground Clearance | 169mm 165 mm cranks | 169mm 165 mm cranks | 169mm 165 mm cranks | 169mm 165 mm cranks |
T8 Build
S | M | L | XL | |
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 2.4in | 2.4in | 2.4in | 2.4in |
Tire Width Max | 2.6in | 2.6in | 2.6in | 2.6in |
Tire Outer Diameter | 743.9mm | 743.9mm | 743.9mm | 743.9mm |
Bike Length with Tires | 1935.9mm | 1962.9mm | 1991.9mm | 2017.9mm |
Crank Length | 165mm | 165mm | 165mm | 165mm |
Handlebar Width | 780mm | 780mm | 780mm | 780mm |
Stem Length | 35mm | 35mm | 35mm | 35mm |
Published Sizing Recommendations
Height | 5 ft 1 in to 5 ft 5 in | 5 ft 5 in to 5 ft 9 in | 5 ft 9 in to 6 ft 1 in | 6 ft 1 in to 6 ft 5 in |
Stack and Reach vs. Category Trend
Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive
The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.
Learn more about the Upright/Aggressive ScaleCategory Trend
Full-suspension Trail MTBSource:https://bikesonline.com/products/polygon-collosus-t8-carbon-all-mountain-bike?variant=51181884014884