Polygon Helios A7 Di2 It

Frame

ACX PERFORMANCE UCI APPROVED

Groupset

SHIMANO 105 FC-R7100 52/36T

Wheels

PIRELLI PZERO ROAD TLR 700x28C

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Description

HELIOS A: Built for Speed and Performance

Aero Road Race | ACX Carbon Frame | 12 Available Builds

The all-new Polygon HELIOS A is a UCI-approved carbon aero road bike designed for maximum speed and performance. Developed with the UCI Continental Team, TSG, we’ve re-engineered the HELIOS to be 5.2 seconds faster than previous generations but also 150g lighter – offering the perfect balance of aerodynamics and climbing agility for a competitive edge on the road.

Ultra-Lightweight 800g ACX Carbon Frame

The HELIOS A features a UCI-Approved ACX carbon layup, weighing a mere 800g. Engineered for competitive road racing, the frame utilizes truncated airfoil tube profiles to deliver a 31% reduction in drag compared to previous generations, ensuring you cut through the wind without the weight penalty of traditional aero bikes.

Aerospace-Inspired Truncated Airfoil Profiles

The HELIOS A taps into aerospace engineering by shaping the down tube, seatpost, and head tube into truncated airfoils. This design provides the aerodynamic efficiency of a full teardrop profile while remaining stable in unpredictable crosswinds and significantly lighter.

34mm Tyre Clearance

The HELIOS A has clearance for up to 34mm tyres. Running wider tyres at lower pressures increases your contact patch and lowers rolling resistance, providing a smoother, faster experience on rough or imperfect roads.

LINC Semi-Integrated Carbon Cockpit

The LINC component line offers the perfect middle ground: the aerodynamic gains of internal routing with the mechanical adjustability of a semi-integrated handlebar and stem. The frame is also versatile and is dual seatpost compatible. Use the included aero seatpost for racing or a standard 27.2mm round post (via adapter) for training and endurance rides.

XXXS	XXS	XS	S	M	L	XL
Height (cm)	144-154	151-161	154-164	162-170	168-176	174-181	180-187
Seat Tube Length (A)	395	420	457	489	499	518	536
Seat Tube Angle (B)	75	74.7	74.3	74	73.7	73.3	73
Effective Seat Tube Angle (C)	75	74.7	74.3	74	73.7	73.3	73
Head Tube Length (D)	90	100	110	120	130	150	170
Head Tube Angle (E)	71	71.3	71.5	72.3	72.5	72.8	73
Effective Top Tube (F)	502	513	529	540	556	570	598
Bb Height (G)	266	266	268.5	271	271	272.5	272.5
Bb Offset (H)	78	78	75.5	73	73	71.5	71.5
Chainstay Length (I)	410	410	410	410	410	410	410
Wheelbase (J)	969	976	988	985	996	1005	1024
Frame Reach (K)	370	375	385	390	400	405	420
Frame Stack (L)	493	503	511	523	533	551	571
Standover Height (M)	662	685	720	752	761	780	799

Information

Color	Black/Black
Size	L, XL, XS, XXS
Brand	Polygon
F. FRAME	ACX PERFORMANCE UCI APPROVED
F. GROUPSET	SHIMANO 105 FC-R7100 52/36T
F. WHEELS	PIRELLI PZERO ROAD TLR 700x28C
Fork	ACX PERFORMANCE UCI APPROVED
Shifter	SHIMANO 105 Di2 ST-R7170, 2×12 SPEED
Crank	SHIMANO 105 FC-R7100 52/36T
Cassette	SHIMANO 105 CS-R7101-12 12-SPEED 11-34T
Rear Derailleur	SHIMANO 105 Di2 RD-R7150
BB	TOKEN T47 85.5 FOR 24mm SPINDLE
Chain	KMC X12 EPT 12-SPEED
Saddle	LINC FLUX2, CR-MO ø 7mm
Seatpost	CARBON AERO, DxL: AERO 35 x 351mm
Handlebar	LINC CARBON
Headset	INTEGRATED (IS) SEALED BEARING FOR OS HEAD TUBE, IS 52/28.6, IS 52/40
Wheel Set	LINC BETA CARBON DISC (45mm) W/ TUBELESS TAPE INSTALLED
Wheel Size	700C
Spokes	F: STAINLESS DOUBLE BUTTED NDS:278mm DS:280mm / R: STAINLESS DOUBLE BUTTED NDS:272mm DS:274mm
Brake Lever	SHIMANO 105 ST-R7170
Brake Caliper	SHIMANO 105 HYDRAULIC DISC
Rotor	SHIMANO SM-RT70 F:160mm / R:140mm CENTER LOCK

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About brand

Bikeera stocks the full Polygon bikes UAE lineup — road, mountain, gravel, and electric models for every rider. Polygon delivers performance-focused design at accessible price points, with builds that compete at the highest levels. As one of Bikeera's core brands, Polygon comes with expert team support and a deep in-store range. The Helios road series features UCI-approved carbon frames and top-tier groupsets including Shimano Dura-Ace Di2 and SRAM RED AXS. Tambora gravel bikes run from aluminium entry builds to full carbon e-gravel options, covering road speed and trail versatility. The Siskiu and Collosus mountain lines tackle everything from XC trail riding to enduro with progressive full suspension geometry. Polygon's Syncline and Collosus electric models pair Bosch and Shimano motors with capable trail-ready frames. Shop Polygon bikes UAE at Bikeera in-store in Dubai or browse the complete collection at bikeera.com. Spare parts and accessories round out the Polygon range. Free delivery across the UAE on orders over AED 150.

New to the brand or comparing models? Read our Polygon Bikes UAE guide for help choosing, or visit our Umm Suqeim St showroom for a test ride.