Prices shown in currencies other than USA Dollars are estimates based on current exchange rates. We will charge your credit card in USA Dollars on the day your order is shipped, and the conversion to your local currency will be done at the prevailing rate by your credit card issuer.
Shipments outside the USA are declared as “bike parts” for customs purposes and will include the actual amount paid for merchandise and shipping. Jenson USA will not mark your parcel as a “gift”, declare a value lower than the actual price paid, or otherwise prepare false customs information.
Get free shipping with your $50 purchase today when you choose Standard Shipping at checkout. Please note this offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and oversize charges still apply on some heavy/large items.
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Flybikes is an innovative BMX brand based in Spain. From their conception in 1999, Flybikes have been developing and innovating new products. Out of love for their sport, Fly engineers new and exciting products for the BMX industry. From removable gyro tabs to invest casting of drop outs and more, Flybikes is at the forefront of BMX innovation.
The Flybikes Proton is a BMX bike that is aimed at the taller rider. With a top tube of 21”, seat stay of 8.5”, and a chainstay of 13.6” the Proton is a taller and more stable build. The frame is made from ultra durable 4130 Chromoly tubing. The 1 1/8” integrated headtube is also drilled for gyro tabs. The Proton frame also features removable brake mounts.
The Proton has a great build kit on it as well. The 8.5” high Chromoly handlebars support the frame’s already high up geometry. The 1 1/8” Chromoly fork has a 32mm offset to bring out the wheelbase a bit and increase stability. Flybikes has set the Proton up with a traditional 25T-9T drive train (gear ratio of 3.9). The rear 14mm cassette hub is sealed and has a 9T driver. Both rims are Flybikes Trebol 36h double-wall rims. The Flybikes Proton is a fantastic build and is great for all levels of BMX riding. The Proton is intended for the taller rider with the large frame and bars.
| Frame | 4130 Chromoly Proton 21"top tube | 13.6" Chainstay | 8.5" seat stay |
| Fork | Flybikes 4130 Chromoy 32mm offset |
| Handlebar | Flybikes 4130 Chromoly 8.5" rise |
| Rims | Flybikes Trebol 36H Double-wall alloy |
| Hubs | Flybikes Trebol sealed hubs |
| Seat | Flybikes Dos 20 |
| Seatpost | Flybikes Tripod seat post |
| Stem | Flybikes Trebol 6061 T6 alloy top load |
| Crankset | 4130 Chromoly Trebol D shape cranks |
| BB | Flybikes Spanish BB |
| Chainring | Flybikes Trebol 4130 Chromoly 25T |
| Tires | Flybikes Ruben Tires |
| Grips | Flybikes Ruben Grips |
| Pedals | Flybikes Ruben PC Pedals |
Jenson USA ships worldwide, including APO/FPO addresses. For a quote, simply add the items you are interested in to your shopping cart and look for the "Shipping Options" box. You don't have to login or create an account to see shipping charges.
Some manufacturers restrict where we can ship their products. If this item has shipping restrictions, they are listed below. If you'd like to buy an item that we cannot ship to your preferred address, we can accept your foreign credit card and ship to a USA address for you.
Get free shipping with your $50 purchase today when you choose Standard Shipping at checkout. Please note this offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and oversize charges still apply on some heavy/large items