The small wheels put you at a pretty low gear ratio so there’s generally no need to put a giant cassette in the rear. While on the topic of cranks I’d like to put in some gearing recommendations. A gravel bike crank or a mountain bike crank with a larger chainring would be ideal for this bike. We are spec-ing a 122mm bottom bracket with our single speed crank on complete builds. On the Neutrino, I ride a standard Campagnolo road crank (narrow Q factor) with wide mountain bike pedals to keep my heels off the chainstays.
The short chainstays make heel clearance a little tight for riders with bigger feet.
If you have larger feet, I would recommend selecting a crank with a slightly larger Q factor or running a slightly longer bottom bracket than usual. The only somewhat unusual components would be the wheels, which are just standard 100mm front/135mm rear disc brake hubs laced to standard 20” bmx rims. We currently offer a complete wheelset with VO Touring Hubs laced to Velocity 406 Rims. The components of the Neutrino follow common standards for the most part.
It also allows compatibility with many externally routed dropper posts. We spec a 31.6mm diameter seatpost for extra strength in longer extensions. Riders with unusually long inseams should check maximum seatpost extension dimensions for building up this frame. This short seat tube keeps it within our airline box constraints. The only unusual difference with the Neutrino frame is the short seat tube. Saddle positionĪs for most frames, you can determine your saddle height by measuring the center of the bottom bracket to the top of your saddle. I went with a long stem, lower down the steerer with short riser bars. I have long arms and generally require more reach on my flat bar builds, but am fairly flexible. To increase the reach, place the stem lower on the fork steerer and use riser bars to achieve a similar stack height. To shorten the reach, place the stem higher on the fork steerer and add spacers. It’s an easy to measure way to compare handlebar height between bikes. I measured my bar position to be 1000mm off the ground for this mock up. For the sake of demonstration I’m using a 0 rise stem above. Rounding the numbers, you can see a 90mm stem with 140mm riser bars (about 5.5”) gives you the same position as a 130mm stem further up the steerer. This is because the headtube angles back towards the rider. If you're 6'1" to 6'4" (193cm), go with a XX-Large. Please see the geometry chart below to find the best size for you:Īs a general rule, the higher your stem position on the fork steerer, the shorter reach becomes. 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. We carefully tweaked the geometry to obtain a completely normal riding bike without any drama. No oversize fees, so fly anywhere with your bike for cheap! This article will help you optimize fit, and get your bike set up for travel. With 2.3” tires and conveniently small size, you can take it just about anywhere! Fully built up, both sizes can fit in an airline acceptable size box (Length + Height + Width = 62”). 31.The Neutrino was designed with travel in mind.Disc brake mounts (POST rear, IS front).Sliding, 135mm QR dropouts for geared, single speed, or internally geared hubs.Clearance for 2.3" tires WITH fenders.That's BMX, so high-quality rims and tires are cheap, plentiful, and strong. Seattube, downtube, and under-downtube bottle cage mounts.Unicrown fork with accommodations for fenders, Randonneur Rack, and even a Mojave Cage or a bikepacking-style cage.4130 double butted chromoly frame and fork that accepts fenders and rack.between 170mm to 183cm to go with a Large. Travelling around in the trains, bus, car is easier than roadbike as well! The Neutrino is a very fun bike to ride around, guaranteed to put a smile to your face each time you are on it!įor cyclists that are 169cm and below, a Small would suffice. Ultimate commuter as it is a small bike to move about buildings or into buildings and apartments!
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