2018 Polygon Bikes Siskiu T7
- Category
- Full-suspension Trail MTB
- Design
- Flat Bar, Full suspension
- Frame
- Aluminum
- Fork
- Aluminum
- Suspension
- 150mm fork travel
- Features
- Rim 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 | Somewhat upright 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 (27.5″) | M (27.5″) | M(29″) | L (29″) | XL (29″) | |
Stack | 595.1mm | 599.7mm | 618.4mm | 623mm | 627.6mm |
Reach | 410mm | 430mm | 430mm | 450mm | 475mm |
Stack to Reach Ratio | 1.45:1 | 1.39:1 | 1.44:1 | 1.38:1 | 1.32:1 |
Seat Tube Length, Unknown | 395mm | 435mm | 435mm | 485mm | 520mm |
Seat Tube Length, Effective Unknown | 74.9mm | 74.5mm | 74.5mm | 74.1mm | 73.9mm |
Top Tube Length, Effective/Horizontal Center | 571mm | 596.3mm | 601.5mm | 627.4mm | 656.7mm |
Top Tube Slope | 22.3deg | 18.3deg | 19.9deg | 15.3deg | 12.2deg |
Head Tube Angle | 66deg | 66deg | 66.5deg | 66.5deg | 66.5deg |
Seat Tube Angle | 68.5deg | 68.5deg | 68.5deg | 68.5deg | 68.5deg |
Head Tube Length | 105mm | 110mm | 100mm | 105mm | 110mm |
Bottom Bracket Drop | 20mm | 20mm | 39mm | 39mm | 39mm |
Bottom Bracket Height | 338mm | 338mm | 331.7mm | 331.7mm | 331.7mm |
Chainstay Length | 430mm | 430mm | 435mm | 435mm | 435mm |
Chainstay Length Horizontal | 429.5mm | 429.5mm | 433.3mm | 433.3mm | 433.3mm |
Front-Center | 716.6mm | 738.7mm | 738.6mm | 760.6mm | 787.5mm |
Front-Center Horizontal | 716.4mm | 738.5mm | 737.6mm | 759.6mm | 786.6mm |
Wheelbase | 1145.9mm | 1168mm | 1170.8mm | 1192.8mm | 1219.8mm |
Fork Offset/Rake | 46mm | 46mm | 51mm | 51mm | 51mm |
Trail | 109.1mm very high | 109mm very high | 105.6mm very high | 105.6mm very high | 105.6mm very high |
Mechanical Trail | 99.7mm | 99.6mm | 96.8mm | 96.8mm | 96.8mm |
Wheel Flop | 40.5mm | 40.5mm | 38.6mm | 38.6mm | 38.6mm |
Standover Height | 663.3mm | 695.1mm | 697.9mm | 734.3mm | 758.7mm |
Tire to Pedal Spindle | 188.6mm 170 mm cranks | 210.7mm 170 mm cranks | 197.9mm 170 mm cranks | 219.9mm 170 mm cranks | 246.8mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 168mm 170 mm cranks | 168mm 170 mm cranks | 161.7mm 170 mm cranks | 161.7mm 170 mm cranks | 161.7mm 170 mm cranks |
T7 Build
S (27.5″) | M (27.5″) | M(29″) | L (29″) | XL (29″) | |
Wheel Size | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 2.6in | 2.6in | 2.35in | 2.35in | 2.35in |
Tire Outer Diameter | 716.1mm | 716.1mm | 741.4mm | 741.4mm | 741.4mm |
Bike Length with Tires | 1862mm | 1884.1mm | 1912.2mm | 1934.2mm | 1961.2mm |
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://www.polygonbikes.com/product/mountain/siskiu-t7/