3.7out of 5
Final Verdict
The Fly Bikes Neutron is a reasonable choice for intermediate riders, offering versatility and decent performance. However, its mid-range parts and some durability concerns mean there are better options at a similar price point.
Recommended Alternative
The Sunday Forecaster BMX stands out as a more reliable option, offering higher-quality components and better overall value. It is available at Dan's Comp.
Full Review
The Fly Bikes Neutron is a BMX bike tailored for intermediate riders. It combines performance and affordability in a sleek package.
Designed with versatility in mind, this bike is suitable for various riding styles. From freestyle park tricks to dirt tracks, the Neutron aims to deliver.
In this review, we’ll break down its key features, discuss its pricing, and weigh the pros and cons. Our goal is to help you decide if the Neutron is the right fit for your BMX needs.
Review of: Fly Bikes Neutron
Uses: Intermediate BMX
We Like
Mid-range pricing: Good value
Versatile design: Suits multiple styles
Quality components: Trebol headset, 510 chain
Upgrade options are great
Free worldwide shipping
We Don’t Like
Steerer tube clogs: Requires cleaning
Faster wear: Grips and tires
Chain issues: Potential for snapping
Limited stock info: Check local dealers
Mid-range parts: Not top-tier quality
Fly Bikes History and Information

Photo by flybikes.com
Origin and Mission
Fly Bikes started in 1999 in Vigo, Spain. The company was born out of pure love for BMX and has been committed to providing the newest technologies and innovations in BMX. Their ultimate goal is to offer the best ride possible.
Technological Innovations
The company has been a pioneer in several areas, including removable gyro tabs, ‘press fit’ bottom brackets, and one-piece crank arms. They were also the first to introduce BMX-specific removable brake mounts. In 2005, they introduced bigger 2.25 tires and ‘Silkworm’ casing technology. In 2006, they brought in motorcycle-style cross-laced rims, and in 2009, they created the ‘Cobra’ linear tube, allowing riders to replace a punctured inner tube without removing the wheel.
Team and Products
Fly Bikes has a team of riders featuring names like Sergio Layos, Stefan Lantschner, and Devon Smillie. They offer a range of products, including signature pro model frames and bars, as well as complete bikes like the Proton, Neutron, and Electron.
Public Opinion
The BMX community generally has a positive view of Fly Bikes. Users on Reddit have praised the brand for its innovative parts and durable frames. Some mentioned that the brand seems to be more popular among older riders and is well-known in Europe.
Frame: Trimoly Meets CrMo
The Neutron’s frame is a Trimoly construct. It’s a blend of strength and flexibility. The 100% CrMo bars and forks add durability. The Volcano-inspired design is a visual treat.
Steering: Hydroformed Steerer Tube
The 2020 Neutron features a one-piece hydroformed steerer tube. It replaces the older two-piece design. This is a game-changer for durability, especially during hard landings.
Drivetrain: Quality Components


Photos by flybikes.com
The bike comes with a high-quality Trebol headset. It also features a stronger 510 chain and a clean Trebol Bueno crankset. These aren’t just parts; they’re performance enhancers.
Bars and Standover: Stability
The Neutron has bigger bars and a higher standover. These features contribute to stability. It’s a bike that wants you to take control, whether you’re in the air or on the dirt.
Wheels: Ruben 2.35” Tires
The tires are Ruben 2.35”, offering excellent grip. But there’s a catch. The steerer tube gets clogged on dirty tracks. Keep that in mind if you’re hitting the trails.
Riding Experience: The Intermediate Riders Dream
I’m an intermediate rider, and this bike fits like a glove. It’s designed for freestyle and dirt riding. The geometry is just right for park tricks, and the frame can handle jumps.
Wear and Tear: A Mixed Bag
The grips and tires wear out faster than you’d expect. I also had a chain snap during a grind. It’s not a deal-breaker, but it’s something to be aware of.
Customization: Make It Yours
The Neutron comes with removable brake mounts and a Springhanger brake system. Want to upgrade? Fly Bikes offers options like CNC Brakes Kit and Ruben Alu Pedals.
Price Point: Worth the Investment
At $540, the Neutron isn’t cheap. But it’s not overpriced either, considering the quality and versatility it offers. It’s an investment in your riding future. However… your money could probably be better invested elsewhere.
Final Thoughts
The Neutron performs reasonably well in several different riding styles. It’s versatile and well-suited to some intermediate riders.
However, be prepared for some maintenance and potential upgrades. In summary, unless you’re really stoked on it, there are ultimately better options (sorry Flybikes!)
Fly Neutron Specifications
- Frame: 4130 CrMo DT, TT & CS / 1020 Hi-Ten / Removable Brake Mounts
- Fork: Integrated cone shape design / 4130 CrMo 1 Piece Steer Tube / 1020 HiTen Legs
- Bars: 1020 HiTen
- Grips: Fly Ruben 2 / 160 mm Long
- Stem: Trebol Top Load / Forged / 6061-T6 Aluminum / 50mm
- Headset: Trebol Internal Sealed Bearing
- Lever: Generic Inged / Forged / 6061 T-6 Aluminum
- Brake: Trebol Springhanger / Forged / 6061 T-6 Aluminum
- Cranks: Trebol 3Pc / 4130 CrMo / 170mm Arm Length
- Bottom Bracket: Mid / Sealed Bearing
- Sprocket: Trebol / 6061 T-6 Aluminum CNC Machined / 25T
- Pedals: Fly Ruben Graphite / Nylon – Fiberglass Compound
- Chain: 510 Type / 74 Links
- Rims: Trebol / Semi-double Walled / 6061-T6 Aluminum / 36H
- Front Hub: Trebol / Sealed Bearing / 10mm Male Axle / 36H
- Rear Hub: Trebol / Sealed Bearing / 14mm Male Axle / 36H / 9T
- Tires: Fly Ruben 2.35 Front & Rear / 60 TPI / 110 PSI
- Seat: Fly Neutron Tripod/ 100% Synthetic Leather / 7 mm Thickness
- Post: Trebol Tripod / Forged & CNC Machined / 6061-T6 Aluminum / 135 mm
- Weight: 11.75 kg / 25.90 lb
Geometry
- Top Tube Length: 20.75”
- Chain Stay Length: 13.2”
- Head Tube Angle: 75º
- Seat Tube Angle: 71º
- BB Height: 11.75”
- Stand Over Height: 9”
- Fork Offset: 32mm
- Bar Rise: 9″
- Bar Width: 29”
- Bar Backsweep: 10º
- Bar Upsweep: 2º
Pricing and Availability
The Fly Bikes Neutron comes with a price tag of $540, positioning it as a mid-range BMX bike. Its robust features and build quality offer good value for the investment.
While the bike’s availability wasn’t explicitly mentioned on the official Fly Bikes website, it is generally sold through various online platforms and BMX specialty stores. Checking with local dealers is advisable for the most up-to-date stock information.
Payment options are pretty flexible for potential buyers. The Fly Bikes website accepts multiple payment methods and even offers free worldwide shipping, a significant perk for international customers.
Fly Bikes occasionally runs promotions and discounts for those interested in special offers. Subscribing to their newsletter can get you a 10% discount on your first order. Additionally, all orders come with free stickers, adding a little extra value to your purchase.
Competing Products to the Flybikes Neutron
- Sunday Forecaster
- Cult Devotion
- Kink Whip
- WeThePeople Reason
- Mongoose Legion L100
Fly Bikes Warranty
Flybikes offers a two-year warranty against workmanship defects for all their products. Some specific products like frames, forks, bars, stems, aluminum pedals, Magneto, and brakes come with a lifetime warranty. The company handles warranty requests on a case-by-case basis and covers all shipping costs if the warranty is granted. However, the warranty does not cover damages due to misuse, neglect, or modifications not approved by Fly Bikes.