Polygon Strattos S7 - Shimano 105, 22 Speed Carbon Road Bike

WAS $1,599.00 You Save $100.00

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The Polygon Strattos S7 is a highly competent carbon road bike, equipped with the ever-popular Shimano 105 groupset. This bike is capable, and will shepherd you through everything from epic gran fondos and weekend training rides, to short, punchy Tuesday night criteriums with snappy responsiveness and speed.

The S7 carries over Polygon's updates to its ACX carbon endurance frame, and is built from the same Toray T-700 and high-modulus carbon fibre as its predecessors. Together with the design upgrades, it delivers a ride for the more sophisticated palate. 

First, you will notice the outright stiffness, created with the tapered headtube. This provides exceptional handling during descents and sprints. This is complemented with the beefy Shimano pressfit BB86 bottom bracket. This wider bottom bracket shell anchors the oversized drive spine, solidly transferring power to the drivetrain while reducing watt-sucking lateral movement.

It’s the broad notes of comfort that really lingers with the rider, however, with the narrower, flat-section seat stays absorbing any jarring road noise. Furthermore, the fork with tapered steerer, has carbon layered in a specific way to ensure that there is a level of vertical compliance whilst still maintaining that ever important, horizontal rigidity. 

The drivetrain is dripping with technology too with the Shimano 105 groupset featuring high-performance dual pivot alloy brakes, a 50/34 crankset along with an 11/28 cassette to help you keep that magical cadence you need for long rides, regardless of the terrain. The shifters are silky smooth and the chain easily finds its sprocket with the 105 derailleurs. 

The S7 rolls on a set of lightweight Entity XL3 wheels with aero spokes and sealed bearing hubs wrapped in Schwalbe Lugano clincher 700x25c tyres. Completing the bike are lightweight, hydroformed and butted Entity Xpert components including short drop handlebar, stem, seatpost and saddle.  


Key Features

  • ACX Endurance Carbon Frame and Fork with Tapered headtube 
  • Shimano 105 Groupset 22 Speed (5800) Full Compact
  • Entity XL3 Wheelset with aero spokes (Made by Mavic)
  • Shimano BB86 Bottom Bracket
  • 5 Year Warranty on frame
  • Full manufacturer’s warranty on parts
  • Weight Complete Bike = 8.0kg (53cm) 
  • Weight Frame Only = 1.08kgs (53cm)

Model Comparison Chart


Strattos S2

Strattos S3

Strattos S4

Strattos S5

Strattos S7

Forks Light Weight Carbon with Alloy Standard Steerer Light Weight Carbon with Alloy Standard Steerer ACX Endurance road Carbon Taper Steerer ACX Endurance road Carbon Taper Steerer ACX Endurance road Carbon Taper Steerer
Frame ALX Advance Endurance Alloy ALX Advance Endurance Alloy ALX Advance Endurance Alloy ALX Advance Endurance Alloy ACX Endurance Carbon Frame
Weight 10.72kg 10.2kg 9.9kg 9.3kg 8.0kg
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 R369 Shimano Tiagra BR-4700 Shimano 105 BR-5800 Shimano 105 BR-5800
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 $599 $749 $949 $1,099 $1,599
Extras         no pedals


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Polygon Strattos S7


ACX Advance Endurance Carbon Frame


ACX Advance Endurance Carbon Tapered Fork 1-1/8-1-1/4” Full Carbon Steerer


Entity Sport, Alloy, 400mm(47-50), 420mm(53-59), 31.8mm Oversized


Entity Sport, Alloy four bolt, 90mm(47-50), 100mm(53-56), 110mm(59)


FSA no. 42 ACB Taper 


Entity Flux Saddle, Crmo Rail


Entity Xpert, Alloy, 27.2x350mm


Shimano 105 FC-5800 50x34T, 170mm(47-50), 172.5mm(53-56), 175mm(59) Compact


Shimano Pressfit BB86


KMC X-11


Shimano 105 CS-5800, 11-28T, 11 speed


Shimano 105 FD-5800


Shimano 105 RD-5800SS


Shimano 105 ST-5800


Integrated with shifter


Shimano 105 BR-5800


Shimano 105 BR-5800


Schwalbe Lugano 700x25C


Entity XL3 20H, Sealed Bearing Hubs, Aero Spokes


Yes (some regional and remote postcodes excluded)



Size Chart






RIDER HEIGHT 160-170cm 165-175cm 170-180cm 175-185cm 180-190cm
SEAT TUBE LENGTH 47cm 50cm 53cm 56cm 59cm


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.




Sizes (A) Stack (mm) (B) Reach (mm) (C) Head Tube Angle (D) Head Tube Length (mm) (E) Head Tube Diameter (mm) (F) Seat Tube Angle (G) Seat Tube Length (C-T) (mm) (H) Top Tube Actual (mm) (I) Top Tube Effective (mm) (J) Front Center (mm) (K) Fork Offset (mm) (L) Rear Center (mm) (M) BB Height (Ground Clerance) (mm) (N) BB Height (BB Drop/Rise) (O) Stand Over Height (mm) (P) Rear Wheel Axle / O.L.D (mm) (Q) Seatpost Size (mm)
47 506.7 374.26 72.25 110 42/52 75.5 470 502.85 515 576 45 405 271.5 68 Drop   130 27.2
50 521.8 385.29 72.25 125 42/52 74.5 500 520.45 530 580 45 405 271.5 68 Drop   130 27.2
53 536 385.95 72.25 140 42/52 73.5 530 537.25 545 583 45 408 271.5 68 Drop   130 27.2
56 556.9 394.47 73 160 42/52 73 560 558.87 565 595 45 408 271.5 68 Drop   130 27.2
58 578 405.53 73.5 180 42/52 72.75 590 580.67 585 607 45 410 271.5 68 Drop   130 27.2


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 tools are provided with the bike.

If you are unsure of how to assemble this bike after viewing the instruction videos above, we recommend you ask for help from someone with knowledge of how to use basic hand tools. 

Please note, that all bicycles whether purchased online or instore, are mechanical devices and need to be serviced regularly to ensure proper functioning. 

This bicycle is backed by a 5 year factory warranty on the frame and full manufacturer’s warranty on parts.

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
  • Bicycles which have been sold to another party
  • Bicycles used in commercial capacity, such as rentals
  • Bicycles which have 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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