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Frame - Platypus

Regular price $1,750.00 USD
Regular price Sale price $1,750.00 USD
Shipping calculated at checkout.



Add this to your cart if you'd like us to build your Platypus up.

Add this to your cart if you'd like us to prep your frame for shipping.

Add this to your cart if you'd like us to prep your frame for pick up in store.

If you're OK with an unprepped frame, no need to add anything other than the frame to the cart.


The Platypus is a versatile, all-around bike for mostly pavement riding with loads from zero to 30 pounds.

It's one of our plushy, cushy, incredibly comfortable long-wheelbasers, and we highly recommend you put an upright bar on it. Let us help you do that.


NO bike is better than the Platypus for zooming and cruising, shopping and commuting and all purpose day-riding on pavement.

The platypus has plenty of fender room and braze-ons where they need to be, so it's great in the rain, too.

Same with racks. It's not for heavily loaded tours, but racks always come in handy. If you don't want racks, put at least one bag on it. Put the Platypus to work for you. 

The Platypus is arguably the most beautiful bike in our line, and we try so damn hard to make them all beautiful. It's the continuation, and fourth model in our long tradition of mixte frames. It's for all-around road riding with loads up to maybe 30lbs.  

For this first run, we include a wonderful DVD on the platypus, filmed (naturally) in Australia by an award winning duo of biologists and platypus-lovers. And we donate $20 per bike to the Australian Platypus Conservancy. So when you get your Platypus, you'll not only have this wonderful bike to ride, but you'll also learn about the animal, and help save it from development, dogs, and nasty fishing nets. 

Difference from the Cheviot, its immediate predecessor:

• The Platypus fits V-brakes

• and fits a slightly bigger tire. up to 50mm.

• the chainstays are a bit longer.

• the midsized Platypus, the 55cm, fits 700c wheels.

• it is a current model.

An upright step-through for all

Three sizes—50cm, 55cm, 60cm; Two colors—LimeOlive, Mermaid

PBH's are lightly flexible because of the step-through

50cm (650b)
PBH range 74cm to 81cm
SADDLE HEIGHT 65cm to 70cm.
55cm (700c)
PBH 82 to 87cm
SADDLE HEIGHT 71cm to 76cm.
60cm (700c)
PBH 87 to 96cm
SADDLE HEIGHT 76cm to 95cm.

You can fit a bigger Platypus than a Homer or a Sam or Altantis because there's no top tube to hit your crotch.

A common and reasonable concern: 
What about top tube length--if I can fit a bigger frame seat-tubewise, won't the top tube be too long?

PROBABLY not. These bikes are designed for upright, sweepy-back bars (Albatross and Bosco, for example), and the sweep-back gobbles up horizontal reach in huge mouthfuls.

Let's say you're 5-7 with a PBH of 85. You can ride either a 55 or a 60. With the 55 you might ride a higher stem with a longer extension (let's say, a Nitto Tallux 11cm raised to the Max Ht line). Well, on the 60 you could get a similar position with an 8 or 9cm stem sunk deeper into the frame. The location of the handlebar will be the same.

Clearly, the 55 will ultimately allow a lower bar and the 60 a higher one, but these aren't low-bar bikes from the get-go, so who cares? The MAXIMUM allowable handlebar height is more of a matter than the MINIMUM height.

If any of this is confusing, extreme apologies. We deal with these bikes and fittings and different bodies every day and for a living, and we'll nail it for you.

In any case, the Platypus, in a few ways, is our most all-around useful, comfortable, democratic bike. Over the next 30 years of your life, it is the bike most likely to be hauled out the front door.

It’s a country bike like our Sam. That’s what we call it. But most people don’t know what that is exactly so to kowtow to categorization here we go: Road tourer. All-Road. Gravel Grinder.

It’s also nimble and more than able for fast fire-road rides with the right tires. There are plenty of tires to attire your Platypus from gravel-grinding cross tires to light and zippy road slicks to bulletproof commuters. 

Everything that makes it a great touring bike also makes it a great commuter, camper or all-rounder. 




Platypus like most of our bikes are/have:

  • Tough steel frame
  • Comfortable seat
  • upright Handlebars within reach
  • Rack Mounts in the right place
  • Fender Mounts in the right place
  • Room for big tires 2.2" (up to 48mm fendered)
  • Wiggle room for those big tires

 A la carte build kits available - more info here.



  • Headset, bottom bracket, and seat post (26.8) included. Please let us know in the order notes if you'd like a build or just the frame. We're may or may not do a presale this time, more on that as the arrival nears. 
  • If you're using cantis, be sure to purchase cable hangers (not included) for more photos