Polygon Helios A8X Di2-12S Road Bicycle 2025
Aero Efficiency Meets Climbing Agility
- Shimano Ultegra Di2
- Disc brakes
You save ₹107,500 (22%)
Polygon Helios A8X Di2-12S Road Bicycle 2025 - Blue / XS is backordered and will ship as soon as it is back in stock.
- Free shipping over ₹2,000Delivered across India
- 100% genuineAuthorised dealer, manufacturer warranty
- Cash on deliveryOn orders up to ₹20,000
- Secure checkoutUPI, cards and net banking
| XS | S | M | L | XL | XXL | |
| Height (in cm) | 154-164 | 162-170 | 168-176 | 174-181 | 180-187 | 185-195 |
It is important to determine the correct size of the bike for comfort and better control while cycling.

The Polygon Helios A8X Di2-12S Road Bicycle 2025 is built for racing, fast training and spirited club rides. Its aerodynamic frame delivers a claimed 24% drag reduction over the previous generation.
Lightweight ACX Carbon Platform: The UCI-approved ACX Performance carbon frame weighs approximately 800 g and balances low weight with responsive stiffness. Reinforced areas support efficient power transfer during sprints and climbs.
Ultegra Di2 Precision: A Shimano Ultegra Di2 2x12-speed drivetrain delivers fast, accurate electronic shifting. The 52/36T crankset and 11-34T cassette cover rapid flats, rolling roads and demanding gradients.
Race-Ready Carbon Setup: The Vision Metron 5D ACR cockpit creates a clean aerodynamic front end, while 50 mm Entity WR5 carbon wheels help maintain speed. Schwalbe One tyres and Ultegra disc brakes add dependable control.
Weighing around 7.7 kg in size Small without pedals, the Polygon Helios A8X Di2-12S Road Bicycle 2025 delivers aerodynamic speed, responsive climbing and electronic precision.
Product details
Specifications
Specifications
| Frame: ACX Performance Carbon, UCI Approved | |
| Fork: ACX Performance Carbon, UCI Approved, Tapered 1-1/8" to 1-1/2" | |
| Brake Calipers: Shimano Ultegra Hydraulic Disc | |
| Rotors: Shimano Ultegra Centre Lock | |
| Shifters: Shimano Ultegra Di2 ST-R8170, 2x12-Speed, DCL | |
| Crankset: Shimano Ultegra FC-R8100, 52/36T | |
| Crank Arm Length: 170 mm (XS, S, M) / 172.5 mm (L, XL) | |
| Cassette: Shimano Ultegra CS-R8100-12, 11-34T | |
| Rear Derailleur: Shimano Ultegra Di2 RD-R8150, Direct Attach | |
| Bottom Bracket: Shimano SM-BB92-41B, Press-Fit BB86 | |
| Chain: 12-Speed | |
| Saddle: Entity Flux2, CR-MO ø 7mm | |
| Seatpost: Carbon, Aero 35x337mm (XS) / 357mm (S, M, L, XL) |
| Handlebar: Vision Metron 5D ACR Integrated, W: 400mm (XS, S) / 420mm (M, L) / 420mm (XL), BB: Integrated, R/D: 125mm, B/R: 80mm | |
| Handlestem: Vision Metron 5D ACR Integrated, EXT: 100mm (XS, S) / 110mm (M, L) / 120mm (XL), BB: Integrated, R/D: 6degree | |
| Headset: Integrated Sealed Bearing For OS Head Tube, IS 52/28.6 | IS 52/40 | |
| Wheelset: Entity WR5 Disc(50mm) W/ Tubeless Tape Installed | |
| Wheel Size: 700C | |
| Rims: Carbon 622-19, 24H, Tubeless Ready | |
| Tyres: Schwalbe One Addix TLE, 700x28C | |
| Front Hub: Alloy, 12x100 mm Thru Axle, 24H, Sealed Bearings, Centre Lock | |
| Rear Hub: Alloy, 12x142 mm Thru Axle, 24H, Sealed Bearings, Centre Lock | |
| Spokes: Stainless Steel Straight-Pull Butted | |
| Color: Blue | |
| Size: XS, L, XL | |
| Weight: 7.7 kg Without Pedals, Size S |
Features
Features
Fit and sizing
Fit and sizing
See the size chart · Between sizes? Ask TBA Guide with your measurements.
Warranty and support
Warranty and support
Covered by the manufacturer's warranty. Warranty claims go through us and we deal with the brand for you.
Questions after delivery? Ask TBA Guide or WhatsApp us.
Shipping and returns
Shipping and returns
We ship across India. Shipping is free on orders above ₹2,000 and ₹99 below that. Cash on delivery is available on orders up to ₹20,000, with a COD charge that depends on the order value. For a delivery estimate, enter your pincode in the box above the add-to-cart button: it shows the courier's own estimate for your address, not a promised date. If a parcel is held up we chase the courier until it is delivered. Full shipping policy
Returns can be started within 7 days of delivery on unused items in their original condition with all tags and packaging. Apparel, helmets, gloves and similar items are returnable; wetsuits and products discounted by more than 5% are not. Compatibility questions are not grounds for a return unless our listing was wrong, so ask us before you order if you are unsure. Return shipping is arranged by you; on an accepted return you can choose an exchange, store credit or a refund after shipping and transaction charges. Orders can be cancelled only until they are processed. Full return and refund policy
Frequently Asked Questions
What is the material of this bike?
What is the material of this bike?
Based on carbon material with ACX technology for a light, responsive yet stiff frame.
What is the drivetrain combination?
What is the drivetrain combination?
The drivetrain come from Shimano Ultegra Di2 series.
What is Performance RB?
What is Performance RB?
Road Bike designed for a high speed pursuit and hill climbing with various gradients.
What differentiate Performance RB and others?
What differentiate Performance RB and others?
The geometry and components is specially made for rider who likes to accelerate sharply on tarmac and responsive to be manouvered.
Why should I choose Polygon Performance RB?
Why should I choose Polygon Performance RB?
Polygon Performance RB will filling up your soul that's craving for an adrenaline rush across the town or mountainous road.

