2019 Polygon Strattos S3 - Shimano Sora Road Bike

WAS $849.00 You Save $70.00

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From riding with your friends, going on day-long adventures, or participating in gran fondo / touring rides, the 2019 Strattos S3 has you covered. Take your riding to the next level with a true road bike. Built around a new Polygon Performance hydroformed triple butted aluminium frame, carbon fibre fork, and 18-speed Shimano Sora groupset, the Strattos S3 will make you fall in love with the sport of road cycling. 

The ALX Performance 6061 Aluminium Strattos frame is constructed with super smooth, double welded joints. The first weld is used for strength, then using a die grinder it is ground back to which a second weld is added to fill in any gaps. Lastly the final grind and polish are applied, to give the frame joints an almost carbon like appearance.

The frame features endurance road geometry. It has a longer headtube, which means that the handlebars are higher than on the more traditional race-oriented road bike frame. This results in less strain on the back, and also reduces the reach to the bar – meaning you’re able to ride further, in greater comfort. The lower position of the bottom bracket and slacker angles on this frame also makes for a more stable, predictable bike for everyday riding - whether you are weaving through some traffic on your commute to work or carving your way down a paved, open road at your local national park. Additional to its comfortable frame, the Strattos boasts a front fork and steerer constructed of carbon fibre, which reduces the bike's weight and helps to smooth out the vibrations from the road.

The Strattos S3 is powered by a full 18 speed Shimano Sora R3000 drivetrain. This includes front and rear derailleurs, shifters and even the crankset. The new Shimano Sora R3000 now comes with a sleek and lightweight compact 4-arm double crankset and STI Dual Control Levers which was reserved only for Shimano's top of the line DuraAce groupset only a few years ago. The new Tektro R-312 brakes have also made things a whole lot safer with a 20% increase in rim brake performance over its previous incarnation.

The Strattos S3 is outfitted with a pair of Araya SA-730 wheels and wide, comfortable Kenda 700x28c tyres. All of these features mean that this bike will outperform the competition and more importantly your expectations. 


Key Features:

  • ALX Performance Aluminium frame
  • Carbon Fork with carbon steerer 
  • Shimano Sora R3000 groupset - 18 Speed
  • Internally routed gear and brake cables
  • Entity Sport, size specific, aluminium handlebar, stem and seatpost
  • Entity Saddle
  • ARAYA SA-730 Wheelset with alloy hubs
  • Kenda 700x28c tyres
  • Flat alloy pedals included
  • Weight - 10.1kg (Medium frame excluding pedals)
  • LIFETIME Warranty on frame
  • Full manufacturer’s warranty on parts


Model Comparison Chart


Strattos S2

Strattos S3

Strattos S4

Strattos S5

Strattos S7

Forks Light Weight Carbon with Carbon Standard Steerer Light Weight Carbon with Carbon Standard Steerer ACX Performance road Carbon Taper Steerer ACX Performance road Carbon Taper Steerer ACX Endurance road Carbon Taper Steerer
Frame ALX Advance Endurance Alloy ALX Advance Endurance Alloy ALX Advance Endurance Alloy ALX Performance Alloy ACX Endurance Carbon Frame
Weight 10.7kg 9.9kg 9.6kg 8.95kg 7.9kg
Drivetrain Shimano Claris Shimano Sora Shimano Tiagra Shimano 105 Shimano 105
Speed 16 Speed 18 Speed 20 Speed 22 Speed 22 Speed
Brakes Alloy Brake Caliper Tektro R312 Shimano Tiagra BR-4700 Shimano 105 BR-R7000 Shimano 105 BR-R7000
Wheelset Araya AR-713 Rims with Alloy hubs Araya SA-730 Rims with Alloy hubs Entity XL2, 28H Entity XL2, 28H, Sealed Bearing Hubs Entity XL3, 20H, Sealed Bearing Hubs
Price $699 $849 $1,049 $1,299 $1,699
Extras         no pedals


2019 Polygon Stattos S3

2019 Giant Contend 1



ALX Performance Alloy Frame

ALUXX Aluminium



Carbon fork with Carbon Steerer

Composite with alloy steerer

Polygon better


Alloy, 400mm(48-51), 420mm(54-60)

Giant Connect alloy



Alloy, 90mm(48-51) 105mm(54-60)

Giant sport alloy 



Entity Aion, Steel Rail

Giant Contact, Steel rail



Entity Sport, Alloy, 27.2x350mm

Giant Sport Alloy 27.2



Shimano Sora FC-R3000, 50/34T

Shimano Sora (50/34)  



Shimano integrated

Shimano integrated







Sunrace 9 speed

Shimano HG400 9 speed

Giant better


Shimano Sora R-3000

Shimano Sora R-3000



Shimano Sora R-3000

Shimano Sora R-3000



Shimano Sora R-3000

Shimano Sora R-3000



integrated with shifter

integrated with shifter



Tektro R-312

Tektro TK-B177



Tektro R-312

Tektro TK-B177



Kenda K176 700x28C

Giant 700x28C

Polygon better


Araya AR-730 Double Wall Rims with Alloy Hubs

Giant double wall alloy


FREE SHIPPING Yes (Some regional and remote postcodes excluded) No Polygon better



$1199 (Giant website Sept 2018)

$350 difference

Size Chart






RIDER HEIGHT 160-170cm 165-175cm 170-180cm 175-185cm 180-190cm
SEAT TUBE LENGTH 48cm 51cm 54cm 57cm 60cm


Note: If you are in between sizes, measure your wingspan. If it is greater than your height, go for the frame size up. If your height is greater than your wingspan, go for a frame size down.





Size Seat Tube Length Seat Tube Angle Effective Seat Tube Angle Head Tube Length Head Tube Angle Effective Top Tube BB Height BB Offset Chainstay Length Wheelbase Frame Reach Frame Stack Standover Height
48 460 74.5 74.5 120 70.5 525 268 75 DROP 415 994.5 380 523.3 709.4
51 490 74 74 140 71 540 268 75 DROP 415 1001.3 384 544 737.2
54 520 73.5 73.5 160 72 556.8 268 75 DROP 415 1004.2 389 557.6 765.1
57 550 73.5 73.5 180 72 567.5 268 75 DROP 415 1015.4 394 566.6 792
60 580 73.5 73.5 200 72 587.1 268 75 DROP 415 1035.6 408 604.6 818.4

We understand how important shipping is once you click "buy now", that's why we have the following policies

Australian Warehouse

All products are in stock and ready to ship from our Sydney warehouse (with the exception of preordered bikes, which have the dispatch date illustrated)

Next day dispatch

All orders received by 5 pm AEST will usually be dispatched the following business day. If an order is placed on the weekend or public holiday, please note dispatch will usually be the next working day. For tracked shipments, please allow 12 hours for tracking to begin.

Shipping of Parts, Accessories and Apparel

Economy Shipping

There is free delivery available on all small parcels Australia wide using tracked services of Australia Post or Fastway, no minimum order value required! Estimated delivery time is 4-9 business days. 

Express Shipping

We do also offer Express Shipping for a small additional fee on parts, accessories and apparel orders. Estimated delivery time on Express Shipping is 1 to 4 business days.

Shipping of Bikes

Shipping of bikes and other bulky goods is free to 85% of residences in Australia. However, some postcodes incur a surcharge starting from $29. 

Once shipped you will be issued a consignment number which can be used to track your parcel. We use Direct Freight Express for deliveries and you can track your delivery by calling 1300 347 397 or online at www.directfreight.com.au


We’re so confident that you’ll love our extensive range of bikes, that we’ll let you ride one as your own for a full 14 days and if you don’t like it, simply e-mail us at sales@bicyclesonline.com.au and we’ll pick it up from you, free of charge! Just make sure you keep the box so it can be re-used to send it back. Click here for more information. 

All of our bicycles come with a Free Pro Build valued at $99. This means that your bicycle will be pre built by our professional mechanics. For your convenience, safety and comfort all our bikes are fully assembled prior to delivery. The bike is then packaged back into a box for secure shipment.


When your bike arrives, all you have to attach is the front wheel, the handlebar and pedals, everything else has been done – the headset has been adjusted, wheels trued, pedals and seat post greased, brakes and gears calibrated, and the tyres have been pumped up (please note upon arrival, in some cases you may need to add more air to tyres).

Most companies simply sell you the bike as it comes from the factory, which will require significant know-how to get your bike on the road. Currently we are the only Australian company providing this service, and have the 14 day test ride to back it up.

All the tools required to assemble the bike are included. 

Please note, that all bicycles whether purchased online or instore, are mechanical devices and need to be serviced regularly to ensure proper functioning. New gear and brake cables, will stretch during the initial bed-in period, and will need to be adjusted after approximately 150-300km. 

Whilst your new bicycle will have already gone through our Pro Build process, you will still need to complete some minor final assembly steps when you take your bicycle out of its box.

Please follow the video playlist below to correctly complete the setup of your new bike:


Assembly Time:

  • 10-15min - You have assembled bikes before
  • 15-25min - You are mechanically handy
  • 30-40min - Never assembled a bike and working with tools isn't your thing


Unboxing your bike:

Start by carefully opening the top flap to expose the contents. You will see the bike with plenty of protective packaging and next to the rear wheel, the saddle & seatpost, a small cardboard box where your pedals, tools, bell and reflectors are. If you ordered any other products with the bike, it is likely they were placed on the bottom of the box as well. Remove all the loose items before pulling the bike out of the box and gently placing it on the floor.

Keep the box and all the protective packaging found on the bike in case you choose to change frame sizes, upgrade/downgrade the bike, or return the bike for a full refund under the 14 Day Test Ride Policy.


How to install a quick release front wheel:



Road brake setup:



How to Install Handlebars and faceplate:


How to install pedals on your bike:


Congratulations on your Purchase

This bicycle is backed by a LIFETIME factory warranty on frame and full manufacturer’s warranty on parts. Lifetime warranty refers to the lifetime of the original owner.

Warranty is valid only for bicycle that has been properly and well-maintained under the following conditions:

Warranty includes:

  • All damaged or fractured or broken frame / fork / component which was caused by manufacturing or assembling error in factory.
  • Non functioning mechanism caused by manufacturing error in factory.

Warranty is NOT valid for:

  • Incorrect assembly, i.e pedals installed in the wrong crank arm. 
  • Normal degradation caused by frequent use, such as degrading brake shoe, deflated tire, etc
  • Surface defects, such as stained, marred, defaced, etc
  • Damaged caused by misuse or accident
  • Other damages which are not caused by factory error
  • Bicycle which has been sold to other party
  • Bicycle used in commercial, such as rented
  • Bicycle which has not been well-maintained

For any damages which is guaranteed by the brand as the first condition above, the brand will repair or replace damaged frame / fork / component with the one of the same brand or similar.

Warranty is valid for all Polygon and Marin bicycles to the original owner only, by showing the purchase invoice.  

To make a claim click here.

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