Sim Works x Simple Bicycle Co Doppo All Road

At the Chris King Swarm event in Bend, the brand compiled a short list of builders who would display various kinds of bikes, built up with components fabricated in their Portland facilities. We’ll start off the showcase with this beautiful Doppo All Road.

Nagoya, Japan’s Sim Works has been making moves to open a base in the USA. Located in Portland – actually in the Chris King factory – Rie Sawada has been working on increasing the stock and inventory for this brand that sells products exclusively made in Japan by Nitto, Panaracer, and Honjo, the powerhouses of Japanese component manufacturing. When it came to bikes, however, Sim Works has been sampling builders to make their Doppo model. Initially, we saw a Made in Japan Doppo touring bike a few years back, so I was surprised to see a Doppo at the event this weekend. Especially one made from aluminum and in the USA!

Oscar from Simple Bicycle Co has been building frames for over a decade and in that time, he’s moonlighted as a behind the scenes fabricator for many brands featured on this site. His talents lie in anything metallic, ranging from titanium to aluminum, and dirt jumpers to all-roads. When Cielo closed their doors last year – where he built full-time for the brand – Oscar pursued more of his own projects, including two bikes we’ll be looking at in detail here at the site.

The resulting bike features clearance for a massive tire, while maintaining a road q-factor and chain line, allowing for the rider to choose a 700c or 650b wheel. For the Swarm, Sim Works built this bike to spec with many of their own parts, resulting in a largely made in Japan kit, on a MUSA frame.

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  • nothingfuture

    Damn. Fantastic.
    I’m finding myself increasingly attracted to 650b road bikes with fat skinwall tires.
    I mean, if I were to build myself a new road bike right now, it’d look something like this one. I’d (personally) lean towards Ti or Steel, but in terms of esthetic and whatnot.

    • Theodor Rzad

      It’s a very useful zeitgeist: fast/chill, road/dirt: the bike cares not :)

    • Yeah chubby road bikes are the best

      • Theodor Rzad

        Thanks John; spending this year on a 650×48 w/ really skinny, thin steel I’m starting to think that with fat-enough tires, flex in the frame and/or fork is less important in the quest for planing.

  • Theodor Rzad

    I really dig the dropouts; clean and minimal.

    What tubing? I haven’t followed current tech for aluminum; I did really enjoy my Easton taperwall hardtail in the mid 90’s (with extra fat tires).

    • Not sure what tubing Oscar used here.

      • Theodor Rzad

        Thanks John; spending this year on a 650×48 w/ really skinny, thin steel I’m starting to think that with fat-enough tires, flex in the frame and/or fork is less important in the quest for planing.

  • That doppo downtube logo is A+

  • strangeshape

    Beauty! But, what does “clearance for a massive tire” mean these days? Massive clearance with a 650b wheel is no big feat for me. What’s the the largest 700c tire (with fenders mounted) that will go in there?

    • MansNotHot

      Pretty sure no production carbon fork goes past 29 x 2.0, or 700c x 40-45mm with fenders mounted. Even if there was one out there, it’s hard to get to a road q factor without super long chainstays when designing a bike for tires that big.

      Still, as a weirdly proportioned giant person, I’m patiently waiting for an affordable 29 x 2.2 all road bike with a dropper post.

  • shezz

    saeco vibez

  • skunk ape

    God I love that Ultegra CX crank. I’ve considered buying one for my RLT9 even though I have a perfectly fine crank. That thing just does it for me in a way most bike parts don’t.

    • Can you put a smaller inner chainring on it (32 would be great, but 34 also cool)?

  • Rie Sawada

    Thanks + Arigato John for the great photos and explanations..🙏🙏🙏

  • George

    front tyre on backwards?