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#PolygonHeliosA #AeroRoadBike #CyclingTech #RoadBikeReview #BikeEnthusiast #CyclingLife #HeliosA0 #SRAMRedAXS #ShimanoDi2 #CarbonWheels #BikeGeometry #CyclingGear #BikePerformance #CyclingInnovation #RidePolygon
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The Polygon Helios A is an attractively priced aero road bike that aims to deliver a blend of performance, value, and modern features. Building on the success of its predecessor, the updated Helios A introduces several improvements, making it a compelling option for riders seeking an aero bike without breaking the bank.
Key Features and Highlights
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Aero Design and Weight Reduction
The updated Helios A retains its aero-focused frame but is slimmer and lighter, with Polygon claiming a 150-gram weight reduction compared to the previous model. The frame design aligns with contemporary all-around race bikes like the Specialized Tarmac and Cannondale SuperSix Evo. -
Enhanced Tire Clearance and Bottom Bracket
The bike now accommodates tires up to 700c x 34 mm, adding versatility for endurance riding. It also transitions from a press-fit to a T47 threaded bottom bracket, improving reliability and ease of maintenance. -
Stiffness and Handling
Improvements in stiffness around the head tube, bottom bracket, and drive-side chainstay aim to optimize power transfer and responsiveness. Short chainstays contribute to nimble handling. -
Compatibility and Customization
The Helios A features a SRAM UDH (Universal Derailleur Hanger) for easier derailleur replacements and offers compatibility with both aero and round seat posts. A two-piece handlebar and stem system simplifies customization compared to the previous one-piece setup. -
Aggressive Geometry
The bike’s geometry is notably aggressive, with long reaches and low stack heights across sizes. This positions the rider in a forward, race-oriented posture, which may not suit all riders, especially those seeking a more relaxed fit. - Build Options and Pricing
The Helios A is available in multiple builds, starting at $3,999 for the Helios A7 with Shimano 105 Di2 and carbon wheels, and going up to $8,999 for the top-tier Helios A0 with SRAM Red AXS and Zipp 303 SW wheels. This pricing makes it one of the most accessible aero bikes in the market.
Riding Experience
The Helios A excels in several areas:
- Performance on Flats: The bike shines on flat roads, where its aero design and aggressive positioning allow for efficient speed maintenance.
- Climbing: Its lightweight build and steep seat tube angles make it a capable climber, particularly in smaller sizes with shorter cranks.
- Responsiveness: The bike feels stiff and responsive, with minimal hesitation during acceleration and cornering.
However, it does have some drawbacks:
- Ride Comfort: The ride quality is firm, especially with the aero seat post, lacking the smoothness of competitors like the Cannondale SuperSix Evo or Orbea Orca.
- Fit Adjustments: The aggressive geometry, particularly the low stack height, may limit fit options for shorter riders or those preferring a more upright position.
Build Kit Highlights
The top-tier Helios A0 features SRAM Red AXS, which delivers precise shifting and excellent brake control. The Zipp 303 SW wheels add to the bike’s performance, though the integrated tire sensor had issues during testing. The Polygon handlebar and stem combination is functionally sound but includes an adhesive cover for aesthetics that feels unnecessary.
Final Thoughts
The Helios A continues Polygon’s tradition of offering high value for money, particularly in its lower-tier builds. While the SRAM Red AXS-equipped Helios A0 is impressive, the Helios A7 with Shimano 105 Di2 stands out as the best value proposition for most riders. It delivers a fun, responsive, and modern road bike experience at a fraction of the cost of competitors.
Ultimately, the Helios A is a strong contender for riders seeking an aero road bike that balances performance and affordability. However, its aggressive geometry and firm ride quality may not suit everyone, especially those prioritizing comfort or requiring a more relaxed fit.
