Framesets will start shipping at the end of January, and we’ll begin assembling and shipping complete builds shortly after. Now’s the time to claim your compact, adventure-ready ride.

The Neutrino Mini Velo is your perfect companion for urban adventures, multi-modal commutes, and travel escapades. Whether you’re a frequent flyer, apartment dweller, or simply looking for a fun and versatile N+1 bike, the Neutrino is designed to fit seamlessly into your life—and your heart.

Compact, Convenient, and City-Ready

For city dwellers and apartment enthusiasts, the Neutrino’s compact size makes navigating tight spaces a breeze. Its small wheels deliver quick acceleration, perfect for darting through traffic or winning stoplight sprints. Once you’ve reached your destination, carrying the bike upstairs or fitting it into your apartment is effortless thanks to its reduced length. Plus, you won’t have to worry about leaving it outside overnight—it’s easy to keep your Neutrino safe and cozy indoors.

Multi-Modal Marvel

If your commute involves trains, buses, or other modes of transport, the Neutrino shines. Its small footprint allows it to slip into train cars without taking up valuable space (or earning side-eye from fellow passengers). Planning a Rinko adventure? The Neutrino simplifies the process—no need to cut fenders or fully disassemble your bike. Just loosen the stem, turn the handlebars, and pack it neatly into a Rinko bag.

Built for Travel

The Neutrino is as at home in a suitcase as it is on the streets. For cyclists who frequently travel by plane, car, or bus to reach their starting point, the Neutrino’s compact frame saves you from oversized baggage fees and logistical headaches. Disassemble it into its original shipping box, and you’re good to go.

A Guaranteed Good Time

Above all, the Neutrino is just plain fun to ride. Its nimble handling, smooth ride quality, and unique character will bring a smile to your face every time you hop on. Whether it’s your daily ride or your weekend adventure bike, the Neutrino is a joy to own and ride.

• Frameset material: 4130 double butted chromoly frame and fork
• Fork: 1 1/8" threadless with accommodations for fenders, Flat Pack Rack, Randonneur Rack, and even a Mojave Cage or a bikepacking-style cage
• Wheel Size: 20", 406 Bead Seat Diameter. That's BMX, so high-quality rims and tires are cheap, plentiful, and strong.
• Tire Clearance: Clearance for 2.3" tires WITH fenders. Holy cow!
• Rear Spacing: Sliding, 135mm QR dropouts for geared, single speed, or internally geared hubs
• Fork Spacing: 100mm QR
• BB: English threaded 68mm
• Brakes: Disc Post mount rear, IS Front, 160mm rotors suggested
• Seatpost: 31.6mm (35.0mm seat collar not included). Compatible with internal dropper posts. If you aren't using a dropper, you can use the internal downtube routing for the rear brake
• Front Derailleur Size: 35.0mm (1x crankset recommended, though)
• Water bottle mounts: Seattube, downtube, and under-downtube bottle cage mounts
• Fender bosses: seat stay bridge, chainstay bridge, under fork crown
• Frame Eyelets: Eyelets on rear dropouts for racks and fenders. Internal eyelets on monostay
• Fork Eyelets: Eyelets on fork dropouts. Triple thru-bosses on the blades for cargo/water bottle cages. Hourglass braze-on for Rando Rack. 
• Rear Brake Routing: Easy internal routing for rear brake cable housing/hydraulic tubing
• Paint: Paint is Slammin' Salmon with reflective VeloOrange downtube decal
• Click for FAQs and Travel Tips