2022 Polygon Bikes Helios A7 Base
- Category
- Performance Road
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Carbon/Composite
- Fork
- Carbon/Composite
- Features
- Disc brake
Geometry
XXS | XS | S | M | L | XL | |
Stack | 505mm | 520.2mm | 535.2mm | 550.4mm | 564.7mm | 580.8mm |
Reach | 370mm | 375mm | 380mm | 385mm | 390mm | 395mm |
Stack to Reach Ratio | 1.36:1 | 1.39:1 | 1.41:1 | 1.43:1 | 1.45:1 | 1.47:1 |
Seat Tube Length, C-T | 450mm | 475mm | 500mm | 520mm | 545mm | 570mm |
Top Tube Length, Effective/Horizontal Center | 505.3mm | 517.3mm | 530.4mm | 543mm | 555.1mm | 569.3mm |
Top Tube Slope | 8.2deg | 7.1deg | 6deg | 5.5deg | 4.4deg | 3.6deg |
Head Tube Angle | 71.5deg | 71.8deg | 72deg | 72.3deg | 72.3deg | 72.8deg |
Seat Tube Angle | 75deg | 74.7deg | 74.3deg | 74deg | 73.7deg | 73.3deg |
Head Tube Length | 100mm | 115mm | 130mm | 145mm | 160mm | 175mm |
Bottom Bracket Drop | 73mm | 73mm | 73mm | 73mm | 73mm | 73mm |
Bottom Bracket Height | 266mm | 266mm | 266mm | 266mm | 266mm | 266mm |
Chainstay Length | 415mm | 415mm | 415mm | 415mm | 415mm | 415mm |
Chainstay Length Horizontal | 408.5mm | 408.5mm | 408.5mm | 408.5mm | 408.5mm | 408.5mm |
Front-Center | 564.6mm | 572mm | 580mm | 587.1mm | 596.6mm | 601.7mm |
Front-Center Horizontal | 559.9mm | 567.3mm | 575.4mm | 582.6mm | 592.1mm | 597.3mm |
Wheelbase | 968.4mm | 975.8mm | 983.9mm | 991.1mm | 1000.6mm | 1005.8mm |
Fork Offset/Rake | 43mm | 43mm | 43mm | 43.1mm | 43mm | 43.1mm |
Trail | 68.1mm high | 66.2mm high | 65mm mid/neutral | 63mm mid/neutral | 63mm mid/neutral | 59.9mm mid/neutral |
Mechanical Trail | 64.6mm | 62.9mm | 61.8mm | 60mm | 60mm | 57.2mm |
Wheel Flop | 20.5mm | 19.6mm | 19.1mm | 18.2mm | 18.3mm | 16.9mm |
Standover Height | 716mm | 739.4mm | 763.2mm | 780.8mm | 802.5mm | 824.3mm |
Tire to Pedal Spindle | 55.6mm 170 mm cranks | 63mm 170 mm cranks | 71mm 170 mm cranks | 78.1mm 170 mm cranks | 85.1mm 172.5 mm cranks | 90.2mm 172.5 mm cranks |
Pedal Spindle to Ground Clearance | 96mm 170 mm cranks | 96mm 170 mm cranks | 96mm 170 mm cranks | 96mm 170 mm cranks | 93.5mm 172.5 mm cranks | 93.5mm 172.5 mm cranks |
Base Build
XXS | XS | 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 | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 28mm | 28mm | 28mm | 28mm | 28mm | 28mm |
Tire Width Max | 32mm | 32mm | 32mm | 32mm | 32mm | 32mm |
Tire Outer Diameter | 678mm | 678mm | 678mm | 678mm | 678mm | 678mm |
Bike Length with Tires | 1646.4mm | 1653.8mm | 1661.9mm | 1669.1mm | 1678.6mm | 1683.8mm |
Crank Length | 170mm | 170mm | 170mm | 170mm | 172.5mm | 172.5mm |
Handlebar Width | 400mm | 400mm | 400mm | 420mm | 420mm | 440mm |
Stem Length | 90mm | 90mm | 90mm | 100mm | 100mm | 110mm |
Stem Angle | 6deg | 6deg | 6deg | 6deg | 6deg | 6deg |
Published Sizing Recommendations
Height | 144 cm to 154 cm | 154 cm to 164 cm | 162 cm to 170 cm | 168 cm to 176 cm | 174 cm to 181 cm | 180 cm to 187 cm |
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
Performance RoadSource:https://www.polygonbikes.com/helios-a7/