Ex Demo Polygon Bend RV - Gravel / Cyclocross Disc Bike - Extra Large 59CM

WAS $1,699.00 You Save $200.00

This Bend RV is a 14 day return which was returned for a size exchange. The bike has only been ridden around the block and then sent back to Bicycles Online. The bike suffered some light transit damage as you can see from the photos. The bike has been checked by our workshop team and is ready for sale.

The Polygon Bend RV lets you tackle any ride whether it be to ride tarmac, commute to work or exploring local bush and forest trails. The Bend RV is the ultimate blend between comfort and versatility.

Gravel grinding, adventure riding, all-road riding, whatever you want to call it – is the idea of taking your road bike,  off road, and it has really taken off in the last few years in Australia.

Cyclocross racing played a major part in the development of the Gravel bike. Designed for the off season - cyclocross is short form bike racing, where riders originally took their road bikes and raced them off road - in the mud, over obstacles and up hills, often being assisted by copious amounts of beer.

Soon brands developed bikes specifically for Cyclocross, which were aggressive racing bikes, with high bottom brackets and twitchy steering – which was great for the track, but not so good for all day / everyday use. So Gravel bikes were borne - with sensible geometry, more predictable handling but still maintained the two key advantages of cyclocross bikes being the wider tyres and disc brakes. It’s these developments that have produced a category of bikes that can now be ridden anywhere irrespective of the type of terrain

The Polygon Bend RV Gravel road bike is built around a 6061 Hydroformed Aluminium frame with internal routing. This is combined with an ACX Endurance Carbon fibre Tapered fork adding comfort and absorption of road and trail vibrations.

Powering this bike is the new Shimano 105, 5800 - 22 Speed groupset with full compact gears, 50-34T crankset and an 11-28T cassette. You will be pleased to discover that the new  Shimano 105 Hydraulic Disc Brakes are spec'd on this bike come attached using the latest flatmount standard that is being taken up across the industry. The brakes provide tremendous power and gives the rider much better brake feel to reduce wheel lock-ups regardless of trail conditions. 

On a bike that will be ridden on such varied terrain – wheels need to be both strong and yet still light – hence a set of Mavic XM 119 rims are laced onto Novatec thru axle hubs to ensure the target weight is met for the wheelset and Mavic adds their stamp of quality and durability.

Thru-Axles on both front and rear add stiffness to the entire bike, making the bike more predictable when navigating tight trails. Completing the wheelset is Schwalbe’s G-One tyre, in a 40c width, which is a revelation in on-road speed and off-road traction. With a round profile, low stack knobs and broad contact patch, the tyre rolls incredibly fast and has great traction on corners.

Finishing the Polygon Bend RV, are the Entity alloy stem, seat post and flared handlebars all matched with the Entity Flux saddle, narrow and long in profile allowing multiple riding positions. 


Key Features

  • ALX Advance Endurance 6061 Hydroformed Aluminium Gravel frame
  • ACX Advance Endurance Carbon Tapered fork 
  • New Shimano 105 groupset 22 Speed (5800)
  • New Shimano 105 Hydraulic Disc Brakes
  • Mavic XM119 rims & Novatec Thru-Axle hubs
  • Entity Expert bar, stem & seatpost
  • Lifetime Warranty on frame
  • Full manufacturer’s warranty on parts
  • Weight Complete Bike = 10kg (50cm) 

As ridden by the Cycling Tips crew in their recent Bali Road Tripping article. Video below:

Also, check out the latest review of the Bend RV by Cycling Tips:


Polygon Bend RV


ALX Advance Alloy Gravel Frame 


ACX Advance Endurance Carbon Tapered


Entity Expert, Alloy, 435MM(49-52), 455MM(56-59)


Entity Expert, Forged Alloy, 100mm(49-52), 110MM(56-59)


FSA no. 57E, Tapered 44/56mm


Entity Flux, Crmo Rail


Entity Expert, Alloy 27.2x350mm


Shimano 105 FC-5800 50X34T, 170MM(49), 172.5MM(52), 175MM (56-59) Compact


Shimano Hollowtech II


Shimano 105 CN-HG600


Shimano 105 CS-5800, 11-28T


Shimano 105 FD-5800, Brazed on


Shimano 105 RD-5800SS


Shimano 105 ST-RS505


integrated with shifter


Shimano BR-RS505 Hydraulic Disc


Schwalbe G-One 700x40c


Mavic XM119 rims, Novatec Hubs, Thru-Axle 12mm



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) (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)
Small / Medium - 49 538.27mm 365.20mm 70.5 120 Tapered 50/44~62/56 74 490 520.08 535 599.53 435 288.5 65 750.41 142 27.2
Medium - 52 563.77mm 383.01mm 71 140 Tapered 50/44~62/56 73.5 520 534.68 550 605.84 435 288.5 65 778.89 142 27.2
Large - 56 584.63mm 391.83mm 71.5 165 Tapered 50/44~62/56 73.5 560 553 565 616.57 435 288.5 65 813.18 142 27.2
X Large - 59 605.20mm 405.73mm 72 185 Tapered 50/44~62/56 73.5 590 574.73 585 631.92 435 288.5 65 839.89 142 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 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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