Paul Budnitz started a ti bike building company five years ago to construct something a bit different. What has developed over time are a series of swoopy, double-toptube frames with belt-drives and internally geared hubs. His newest bike – the Model Ø (or Zero) – takes the lessons he’s learned on city cruisers and mountain bikes and applies it to a fast-moving bike for longer commutes or even more dedicated road riding.


The new Budnitz Model Ø was two years in the making, as their designers worked to produce the fastest and most advanced bike in their catalog. Budnitz bikes use a twin-toptube design with a small weld connection at the seattube that allows the frame to flex in a unique way (much like Trek’s IsoCoupler) and gives a very smooth feel at the saddle. They received a lot of feedback from customers who wanted a fast bike with that same smooth ride, and so the new Model Ø was born.

Bunditz_Model-0-Zero_belt-drive-titanium-commuter-bike_front-end Bunditz_Model-0-Zero_belt-drive-titanium-commuter-bike_rear-3-4

The bike begins with a handmade titanium frame and then builds to suit each customer starting with a carbon fork, a Gates Carbon belt drive, and a Di2 Alfine 11 speed hub. A Rohloff 14 speed option is also available. Tire-wise the Model Ø comes spec’d with 35mm Schwalbe Marathon Racers, but you can even swap in a set of knobby cross tires like Racing Ralphs for a bit more of a fast off-road adventure. The Model Ø get new-for-Budnitz geometry as well, with a shorter wheelbase and more road-oriented handling. It uses a tall tapered headtube and pairs with Enve fork and cockpit for rigid and predictable steering.

Like all of his bikes, the Model Ø comes with a 100-mile no-questions-asked trial, so try and make sure you are happy when you buy. His frames and custom made components are also guaranteed for 100 years (not sure if that is to the original purchaser, or who will be handling claims in a century, whatever…), so we guess that is just a nod to confidence in their product and a willingness to stand behind what they make.

Bunditz_Model-0-Zero_belt-drive-titanium-commuter-bike_baby-blue Bunditz_Model-0-Zero_belt-drive-titanium-commuter-bike_yellow Bunditz_Model-0-Zero_belt-drive-titanium-commuter-bike_red

The Model Zero is available in four stock sizes for $6750 for the complete build. They can also be painted-to-order in a wide range of standard solid colors for a $500 upcharge (nicely leaving the stays exposed ti.) Quantities are said to be limited, so hop on if you are looking for a smooth alternative ride for everything from morning road commutes to weekend gravel adventures.



  1. Marin on

    Nice looking frame and concept but as always, titanium tax makes it’s priced outside of the realm of common sense.

  2. NickleSnapper on

    Yeah, kinda expen$ive but the people who buy these prolly have that amount swimming under their couch cushions. When you amortize the cost over its 100 year warranty life though, it’s a bargain.

  3. dustytires on

    Mr. Budnitz nailed the tubing bends! The radius on downtube and seat tube actually match the wheels, what a refreshing change to all the mis moshed bends out there. The stupid high cost of a Rolloff can’t help the retail price on this though.

    • Veganpotter on

      While that may look cool, it may not be the best thing for performance. Form follows function, or at least should. Make the shape work well, then get the looks without compromising performance

    • Antipodean_eleven on

      @Veganpotter has a good point. This is very pretty and the rads are as @dustytires says, really harmonious but a bend just adds more material (nominal though it may be) when you don’t need it. The biggest single problem with bicycle design is that a double triangle, with straight tubes, is just so efficient that anything else is pretty much ‘because we can’ and for no other reason.

      Makes life hard for custom builders trying to be different I have to say :/

  4. Thor29 on

    $6750 is for the Alfine version – the Rohloff is an upgrade. It’s really hard for me to wrap my head around this thing. (deleted)

  5. AlanM on

    Why does everyone get so upset about what people choose to spend their money on? If this bike sells at this price, then it’s priced correctly. Don’t like the price or the bike, don’t worry buy it.

    • Tim on

      Because when lots of other people say “yes” to overpriced goods, companies see that and everyone begins raising their prices. That’s bad for consumers.

      • AlanM on

        Again, don’t buy things if you don’t like what they are priced at. That’s how a free market works. Don’t blame this manufacturer or the people that choose to buy it. This bike isn’t going to impact the pricing of 99.9% of the bikes on the market.

        • Tim on

          I don’t blame anybody, and am not denying we live in a free market. If I had a bike factory, would I charge the prices that I thought would result in maximum profit? Sure. But I don’t own a bike factory, so my interests are in line with those of consumers. Does the aggregate of people’s complaining about prices stop anyone from buying an overpriced bike? Probably not. Just like this sub-thread has no impact on anything- except for the enjoyment our complaining about each others’ complaints furnishes each of us.

          • Kevin on

            No one buys a bike at a price that they think is not worth the price. At $6750, whoever buys it believes that it’s worth at least $6750.

    • Matt on

      He asked Blacksheep Bikes to produce a bike for him. He then took said design, broke contract, and had someone overseas produce the frame. Not sure about legality but d-move for sure. Believe it was reported here at some point or maybe I saw it over at MTBR, but I still hate BR for giving this creep any press. I still come back, but I hate seeing this crap on here, more than e-bikes even 🙂

      • kestrel on

        Yeah, I know about the d-move he pulled. I am in the industry and know the story straight from the peeps involved.
        I actually mentioned it before on the other bike they reported.
        An absolutely d-move for sure.

        • pTymnWolfe on

          I’m glad someone brought this up. Definitely worth mentioning. In addition every buttnitz I’ve every ridden is a terrible flexy(in all the wrong ways) heap of garbage. If you want a bike like this that actually rides like a bike then contact Black Sheep.

  6. Carbonfodder on

    I am apparently stupid and poor. Can’t afford, but don’t see this as any more out to lunch than any number of >5K bikes on the market today…. I remember (grump alert) buying a Merlin with full XT (before XTR existed) for 2K in ’91(?), and I thought that was off the shelf crazy, but a lifetime buy. It’s still in the garage today. And the most fun goof off bike ever. Your mileage may vary

  7. bbb on

    Oh dear…

    Another lovely skinny Ti/steel bike with a hideous bulbous out of place Enve stem…

    Honestly does Enve offer some sort of “Buy our fork get a stem free… ” deal for bike builders or perhaps it’s the consumers who are so pleased with the stem’s “reasuring” price tag that they become completely blind to its ugliness?

    Yes I get it. It’s expensive lightweight stiff and carbon but you need to be blind not to see at it resembles a generic/OEM stem on a low/mid end bike… Actually some of them look better.

    There are much better looking high quality alternatives for skinny/classic bikes that will do the job just as well.

  8. postophetero on

    —too expensive not to have hydro-discs & flat mounts
    —chainstays are too long
    —seattube angle seems shallow, note the forward slammed saddles on zero offset posts
    —a more versatile rear dropout ala Paragon


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