Marin Muirwoods 29er Commuter Bike


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The Marin Muirwoods is named after the famous park in the San Francisco Bay Area, and for good reason. The Muirwoods is a get-around-town bike as much as it's also a get-out-of-town bike. That's because the Muirwoods is a bike that can do it all. The tough Chromoly steel frame is based off a vintage mountain bike geometry so it can deliver up a fun and agile ride whether you're hopping over train tracks or tackling some light single track.

The full size 29er wheels are wrapped up in Schwalbe Citizen 40c tyres with a smooth tread and a Kevlar protection belt to help you tame both the roads and the fire trails. For those wanting more, there is also plenty more space should you want larger balloon tyres.

Shimano M-315 hydraulic disc brakes slow your roll in any terrain or weather, while a Shimano Alivio and Altus 3x9-speed drivetrain with a Shadow rear derailleur, gives you 27 gears to get up and over pretty much anything the city or the trail throws at you. Rack and fender eyelets let you haul your laptop to work...or give you the capability to ride off into the sunset on Friday afternoon, loaded up with all your camping gear.

  • Chromoly frame with MTB-inspired geometry
  • Rack and fender mounts
  • Shimano Alivio/Altus 3x9 drivetrain
  • Shimano M-315 hydraulic disc brakes
  • Weight: 12.9kg (without pedals)

Your bike will arrive in a custom Bicycles Online bike guard box as described in the below video.


Marin Muirwoods 29er


Urban Double Butted CrMo, 29” Wheels, Disc Mount


CrMo, Fender and Rack Eyelets, IS Disc Mount


Marin Alloy Flat Top Riser


Marin 3D Forged Alloy


FSA No.8D, Sealed Cartridge Bearings


Marin Fitness


Marin Alloy


SR Suntour XCR6, 48/36/26T, Ring Guard


Sealed Cartridge Bearings, Square Taper




Shimano HG200 9-Speed, 12-36T


Shimano Altus


Shimano Alivio Shadow 9-Speed


Shimano Altus 3x9-Speed


Shimano Hydraulic


Shimano BR-M315 Hydraulic Disc, 160mm Rotor


Schwalbe Citizen, 29”x1.6” / 700Cx42, Reflective Sidewall, Kevlar Puncture Protection


Marin Aluminum, Double Wall, Disc Specific
Size Chart






RIDER HEIGHT 160-167cm 167-175cm 175-183cm 183-188cm 188-193cm


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.


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


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 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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