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Neutrino Frameset




Whether you're a frequent traveler, apartment dweller, multi-modal commuter, or just enjoy a fun N+1 bike, the Neutrino will fit perfectly into your heart.

For city and apartment dwellers, you'll get great acceleration for stoplight racing as the wheels spin up quite fast. When you've reached your destination, getting the bike into the building, walking up stairs, and parking it in your apartment is so much easier because the physical length of the bike is greatly reduced. You can much more nimbly negotiate stairwells and since it's warm and cozy inside, you don't have to worry about it getting ripped off overnight.

For multi-modal traveling, it's easier to take the bike in a train car without taking up a ton of room and attracting disdainful looks from fellow commuters. Oh and Rinko. Forget cutting fenders, removing handlebars, and wheels. Just loosen the stem, turn the handlebars 90 degrees, and put the whole thing into a Rinko bag!

Traveling with the Neutrino is also a breeze. Since we often travel to our cycling starting point by airplane, train, car, or bus, overage fees for checked bags, storage, and transportation add up quickly and are a real drag. To take full advantage of the traveling abilities of the Neutrino, the bike can be disassembled and inserted into the cardboard box that it comes with.

Simply put, the Neutrino is a blast to ride around. It'll put a smile on your face every time you throw your leg over.

  • 4130 double butted chromoly frame and fork that accepts fenders and rack
  • Unicrown fork with accommodations for fenders, Randonneur Rack, and even a Mojave Cage or a bikepacking-style cage
  • Seattube, downtube, and under-downtube bottle cage mounts
  • 406 Bead Seat Diameter wheel size. That's BMX, so high-quality rims and tires are cheap, plentiful, and strong.
  • Clearance for 2.3" tires WITH fenders. Holy cow!
  • Sliding, 135mm QR dropouts for geared, single speed, or internally geared hubs
  • Disc brake mounts (POST rear, IS front). We suggest 160mm rotors. 
  • Full length, external cable routing
  • 1 1/8" threadless steerer
  • 68 mm wide BB shell, English threaded
  • 31.6mm seatpost
  • Compatible with internal dropper posts. If you aren't using a dropper, you can use the internal downtube routing for the rear brake
  • Paint is Pistachio with reflective VeloOrange downtube decal
  • Click for FAQs and Travel Tips
We carefully tweaked the geometry to obtain a completely normal riding bike without any drama. Since the sizing is a bit less-than-traditional, we generally suggest folks that are 5'6" (168cm) and under go with a Small, and folks between 5'6" and 6' (183cm) go with a Large. If you're 6'1" to 6'4" (193cm), go with a XX-Large.

Velo Orange Neutrino Geometry
Please note: the XXL size is slightly too big to be packed as a regular checked bag like the other sizes.

Customer Reviews

Based on 9 reviews
Bike born of gravel meets bmx, raised by a bike messenger.

I recently finished my Neutrino build I describe it as the love child of a gravel bike and a bmx bike raised by a bike messenger. 2.3 tubeless tires, a funky sunrace 9-36 cassette with downhill shimano 10 speed Zee derailleur coaxed into 11 speed service. Cigne stem, bull horn bars,

I don't know what is more fun, the ride or the reaction from people. I can't wait to practice getting this into a bag for train travel. NJ Transit is infamously bike-unfriendly. Initially I balked at discs, but this little guy stops on the dime. No problem with a MTB single crankset with the chainring spaced in 4 mm for a perfect chainline while having no heelstrike issues. I can easily pedal above 25 mph, while still having a low gear for the steepest hills.

Stupid Fun Bike

What a fun little bike. Blindfolded, I wouldn't know I was a mini velo as the geometry is that of a full sized bike. You only notice its smaller when making a turn. Draws gawkers where ever I ride. Built it up with a combination of parts bins left overs, Blue Lug cranks (VO was sold out), Paul levers, Nitto/Fairweather bullmoose bars (also from Blue Lug since VO was sold out) and some eBay wheels. My wife took one spin on MY bike and thanked me for HER new bike. My son steals it for the super fun wheelies. I've taken it out on a mixed gravel/road/beer crawl so far and was surprised at how plush the rear end was. May be a combination of the 2.3 tires and tall carbon seatpost. Looking forward to doing a little bikepacking soon.

The frame and color is spectacular.

Building up a dream bike. Still finding the parts. Still have to build the wheels. Looking forward to showing off the final build.


It's pretty much impossible to ride without having a smile on your face, and it's infectious to those you pass by. Standing up on the pedals makes you feel like a kid again, whipping it back and forth like a bmx bike, but sit back down on the seat and it becomes an easy cruiser again, as least with the dropouts slid all the way back. For as many places to mount things as there are on the bike, there aren't a lot of products out there that are compatible with it. 20" fenders are very hard to come by in a wide size. They are out of stock here at the time of writing this. Similarly, for front racks, you can really only run a nitto or velo orange rack without it looking weird and huge. You really need braze-ons about half-way up the headtube to make use of the cargo front-racks. Back racks will limit you to the top only, due to heal strike, though you could run small panniers. Frame packs don't fit the weird geometry very well either. so while it at first seems like there will be a lot you can do with it, I feel like most of the spots will remain empty for the vast majority of builds. It's not that it can't support tons of bags and racks, but you may end up having to fabricate something custom for it to really fit with the bike. My frame came with a nick in the paint, but some touch-up paint was promptly sent. I think it's a little silly that you can't order a fork separately (and I see nowhere to order new dropouts either), but understand that it's a small run. The biggest downside is the cost, but you know that going into it. There are very few options for an off-the-shelf mini-velo in the US, and this is likely the best one you can get your hands on at the moment.

Why i stopped worrying and learned to love the bomb

If I had to describe this bike in one word, it would be "FUN!"
Like most others say, it rides like a regular sized bike, I'd say it just feels naughtier!

It is totally an N+1 bike but if it was my only bike I wouldn't be at all upset with it. I regularly do 50km rides on it and I am probably older and fatter than you!

Get one, hell get two! I'm going to get a second one and fit it with S&S couplers, if they come back into stock.

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