Polygon Entiat TR6 - 27.5+ Trail Mountain Bike


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Over the past year or so, the mountain bike world has seen the evolution of a new tyre size enter the ranks - The 27.5" Plus. Equipped with a wider 27.5" x 3.0" tyre, this new wheel size allows for greater traction on the trail and more stable cornering on the berms. The bigger tyres and the 120mm suspension fork also add to the suspension-free simplicity of the bike, allowing it to easily handle technical trails normally requiring a dual suspension setup.  

The new Polygon Entiat TR6, 27.5 Plus Trail bike combines the benefits of the high end technology in this new frame and wheel set up with no nonsense, all day performance components that are affordable.

At the centre of the TR6 is Polygon's trail ready ALX Boost alloy frame with the new BOOST system (hub system originally developed by SRAM - 12x148mm rear, 15x110mm front). With wider Boost hub flanges, it allow the spokes on the wheelset to make a wider triangle which results in more support for the rim and a stronger overall wheel. Compared to a regular hardtail mountain bike which is normally designed for XC riding, the slacker headangle (66.5 degrees) combined with the shorter chain stays allow the bike to be ridden in more vertical / technical environments. The oversized wheels and tyres provide added cushioning to the ride while the Rockshox Recon Silver front suspension fork with 120mm of travel and hydraulic lockout helps soak up the big hits.

The TR6's groupset combines a 1 x 10 Shimano Deore drivetrain with a Samox Crankset running a Narrow-Wide 32T chainring and Shimano Deore shifters. Shimano's M365 hydraulic disc brakes take care of the stopping power providing excellent modulation in all conditions. The TR6 rolls on a set of Entity Boost 27.5+ wheels wrapped in Schwalbe Nobby Nic 27.5" x 3.0" tyres.

The bike is completed with Entity Xpert stem, saddle, seatpost and handlebar, all of which balance weight savings with the kind of durability mountain biking demands. Like its bigger sibling, the TR8, the TR6 is an extremely versatile and fun bike to ride. Whether you are a newcomer to mountain biking or an experienced rider looking to get more out of your ride, the Entiat TR6 should be on your wish list with its lightweight, snappy performance around the trail and huge traction on the berms and uphills. This is a bike that will have you grinning from ear to ear on your next riding adventure.


Key Features:

  • ALX Hydroformed Trail Alloy frame,  BOOST 12X148mm O.L.D., Post Mount, Internally routed
  • Rockshox Recon Silver, Travel 120mm, Tapered Steerer, BOOST 15X110mm O.LD.
  • Shimano Deore 1x10 speed
  • Shimano M-365 Hydraulic Disc Brakes
  • Entity Boost 27.5+ wheelset with Schwalbe Nobby Nic 27.5" X 3.0" tyres
  • Entity Xpert handlebar, stem, seatpost and saddle
  • Weight: 15kgs (m) including pedals
  • LIFETIME Warranty on Frame
  • Full manufacturer’s warranty on parts.



Polygon Entiat 27.5+ Trail Bike


ALX Advanced Alloy Trail 27.5+, BOOST 12X148mm O.L.D.


RockShox Recon Silver 120mm, with hydraulic lockout and Tapered Steerer, BOOST 15X110mm O.LD


Entity Expert, Alloy, 780mm


Entity Expert, Alloy 60MM


 Tapered ID:44/56MM


Entity Assault Saddle, Steel Rail


Entity Xpert, Alloy, 30.9x400mm


Samox 170mm(S-M), 175mm(L), 32T


VP Component VP-195E, Alloy




KMC X-10


Sunrace, 10Speed, 11-42T


Shimano Deore M615-GS


Shimano Deore SL-M610


Shimano BR-M365, Hydraulic


Schwalbe Nobby Nic, 27.5”x3.00”


Entity Boost with Sealed Bearings Hub


Stainless Steel Spokes


$1,199 Including free shipping

Size Chart




RIDER HEIGHT 155-170cm 170-185cm 180-195cm
SEAT TUBE LENGTH 15" 17" 19"


Strattos S5
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)
15 597 377 66.5 100 ZS44 - 56 73 381 552.8 560 670.7 43 425 316 35 Drop 684 148 x12 / 141 x 9 (2HRU Axle system) 30.9
17 606 406 66.5 110 ZS44 - 56 73 432 566.9 585 696.9 43 425 316 35 Drop 730 148 x12 / 141 x 9 (2HRU Axle system) 30.9
19 615 417 66.5 120 ZS44 - 56 73 483 581.9 605 718 43 425 316 35 Drop 774 148 x12 / 141 x 9 (2HRU Axle system) 30.9





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


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. 

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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