Every trail tells a different story. Polygon builds mountain bikes for every ride, from cross-country speed to technical descents, with hardtail and full-suspension MTBs designed to perform.
From skateparks and pump tracks to dirt jumps and street sessions, Polygon Dirt Jump & BMX bikes are built for confidence, control, and creativity.
Engineered with advanced frame technology, Polygon road bikes are designed to perform. Explore performance to all-rounder road bikes that deliver speed, efficiency, and precision on every ride.
Built for riders who refuse to be limited by the route, Polygon Adventure Bikes deliver comfort and versatility. Explore gravel bikes and hybrid bikes ready for urban rides and scenic escapes.
From daily commutes to weekend rides, Polygon city bikes deliver comfort, versatility, and reliable performance for every urban journey.
Go farther with Polygon electric bikes. From daily commuting to weekend adventures, our e-bikes deliver smooth power, confident handling, and more freedom on every ride.
Every ride starts with confidence. Polygon kids junior bikes are built for young riders, combining comfort, durability, and confidence to inspire every adventure from the very first ride.
HELIOS A: Built for Speed and Performance
HELIOS A8 Di2 POWERMETER
Specification
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Frameset
FramesetForkFrame ColorDecal Color
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Drivetrain
ShifterCrankCassetteRear DerailleurBBChain
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Cockpit
SaddleSeatpostHandlebarHandlestemHeadset
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Wheel & Tire
Wheel SetWheel SizeTireRimHubSpokes
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Brake
Brake LeverBrake CaliperRotor
Geometry & Size
| XXXS | XXS | XS | S | M | L | XL | |
|---|---|---|---|---|---|---|---|
| Height (cm) | 143-153 | 151-161 | 154-164 | 162-170 | 168-176 | 174-181 | 180-187 |
| Seat Tube Length (A) | 395 15.55 | 420 16.54 | 457 17.99 | 489 19.25 | 499 19.65 | 518 20.39 | 536 21.1 |
| Seat Tube Angle (B) | 75 2.95 | 74.7 2.94 | 74.3 2.93 | 74 2.91 | 73.7 2.9 | 73.3 2.89 | 73 2.87 |
| Effective Seat Tube Angle (C) | 75 2.95 | 74.7 2.94 | 74.3 2.93 | 74 2.91 | 73.7 2.9 | 73.3 2.89 | 73 2.87 |
| Head Tube Length (D) | 90 3.54 | 100 3.94 | 110 4.33 | 120 4.72 | 130 5.12 | 150 5.91 | 170 6.69 |
| Head Tube Angle (E) | 71 2.8 | 71.3 2.81 | 71.5 2.81 | 72.3 2.85 | 72.5 2.85 | 72.8 2.87 | 73 2.87 |
| Effective Top Tube (F) | 502 19.76 | 513 20.2 | 529 20.83 | 540 21.26 | 556 21.89 | 570 22.44 | 598 23.54 |
| Bb Height (G) | 266 10.47 | 266 10.47 | 268.5 10.57 | 271 10.67 | 271 10.67 | 272.5 10.73 | 272.5 10.73 |
| Bb Offset (H) | 78 3.07 | 78 3.07 | 75.5 2.97 | 73 2.87 | 73 2.87 | 71.5 2.81 | 71.5 2.81 |
| Chainstay Length (I) | 410 16.14 | 410 16.14 | 410 16.14 | 410 16.14 | 410 16.14 | 410 16.14 | 410 16.14 |
| Wheelbase (J) | 969 38.15 | 976 38.43 | 988 38.9 | 985 38.78 | 996 39.21 | 1005 39.57 | 1024 40.31 |
| Frame Reach (K) | 370 14.57 | 375 14.76 | 385 15.16 | 390 15.35 | 400 15.75 | 405 15.94 | 420 16.54 |
| Frame Stack (L) | 493 19.41 | 503 19.8 | 511 20.12 | 523 20.59 | 533 20.98 | 551 21.69 | 571 22.48 |
| Standover Height (M) | 662 26.06 | 685 26.97 | 720 28.35 | 752 29.61 | 761 29.96 | 780 30.71 | 799 31.46 |
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