Fly Sion BMX Bike
Fly Sion BMX Bike
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Fly's Sion was built as the perfect ramp-blasting machine, equally capable of handling business when it comes to heavy street riding.
With help and input from Larry Edgar, Josh Dove and Sergio Layos the Sion has been built for speed and riding control, with an absolute ton of aftermarket Fly parts, like Fuego Tyres, Volcano Stem, Sierra Seat and more Ruben parts.
A full chromoly frame, forks and bars ensure reliable durability from the Sion with front and rear sealed hubs, a 3-piece crankset and chain tensioners helping the rest of this setup feel solid.
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- Free UK Shipping On Orders Over £99.99*
- Complete Tracking On All Orders
- 90 Day Returns Policy
- Free Gifts With All orders
- *Excludes bulky items
Product Specs
- FRAME MATERIAL: 100% Chromoly
- WHEEL SIZE: 20"
- TOP TUBE LENGTH: 21"
- CHAIN STAY LENGTH: 13.4"
- HEADTUBE ANGLE: 75°
- SEAT TUBE ANGLE: 71°
- FORKS: 100% Chromoly with 1-Piece Steerer Tube
- BARS: 100% Chromoly
- STEM: Fly Volcano Front Load, 6mm Rise, 50mm Reach
- HEADSET: Trebol, Sealed Bearing, 6061-T6 Aluminium
- BRAKE MOUNTS: Removable brake mounts
- BRAKES: Trebol Springhammer
- FRONT HUB: Trebol Bueno, Sealed Bearingm 10mm Female Axle
- FRONT RIM: Fly Piramide, Double Wall
- REAR HUB: Trebol, Sealed Bearing, 14mm Male Axle, 9T
- REAR RIM: Fly Piramide, Double Wall
- TYRES: Fly Fuego 2.30" (Front and Rear)
- SPROCKET: Fly Tractor, 7075 Aluminium, 28T
- CRANKS: Trebol 3-Piece, 175mm Arm Length
- BB: Mid Sealed Bearing
- PEDALS: Fly Ruben Graphite, Nylon/Fibreglass compound
- SEAT: Fly Aire Tripod
- GEARING: 28/9
- WEIGHT: 24.91lbs
Product Highlights
- Great for riders who are between 5ft and 6ft tall (150cm - 180cm)
- Best suited to skatepark use but can be used on for all types of Riding
- High-quality Chromoly construction
- Sealed bearings throughout
- Chain tensioners to help keep your wheel in place
NEED SOME HELP CHOOSING A BMX BIKE?
We have compiled a complete BMX buyers guide to help you through the process! Keep reading to find out more about your perfect BMX bike. Here at SourceBMX we are all riders, so we can offer advice that only 100% rider-owned BMX shops can - just ask.
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BMX BIKE SIZE GUIDE
BMX bikes are measured in two ways: the size of the wheel (20” is the standard BMX wheel size), and the length of the frame which is gauged by the top tube measurement. We have also simplified for you into XS, Small, Medium, etc.Here is a guide to what size you should be looking for - note that there is some overlap in sizes, as personal preference also comes into the equation!
| Rider Height (in) | Rider Height (cm ) | Wheel Size (in) | Top Tube Length (in) |
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| 2FT - 3FT | 60 - 90cm | 12" | 11.5" - 13" |
| 2'8" - 3'4" | 80 - 100 cm | 14" | 2.8" - 15" |
| 3FT - 3'8" | 90 - 110cm | 16" | 14.5" - 17" |
| 3'6" - 4'6" | 105 - 135cm | 18" | 17" - 18.5" |
| 4'6" - 5'1" (XS) |
135 - 155cm | 20" | 18" - 20" |
| 4'10" - 5'4" | 147 - 162cm | 20" | 20" - 20.25" (XS - S) |
| 5'2"- 5'8" | 157 - 173cm | 20" | 20" - 20.5" (S - M) |
| 5'6" - 6FT | 165 - 185cm | 20" | 20.25" - 21" (M - L) |
| 6FT + | 180cm + | 20" | 20.75" + (L - XL) |
