Fit Series One BMX Bike
Fit Series One BMX Bike
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The Series One was the first frame when Fit started back in 2000 and it’s been their most popular bike to date.
Ever improving and updating for 2026 the Series One gets an upgraded CNC machined Integrated headtube and a fully sealed bearing front hub. The S1 frame and fork have also been lightened up and offered in 3 top tube sizes with corresponding handlebar and crank sizes.
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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: Chromoly Front Triangle
- WHEEL SIZE: 20"
- TOP TUBE LENGTH: 20.25"
- CHAIN STAY LENGTH:
- HEADTUBE ANGLE:
- SEAT TUBE ANGLE:
- FORKS: Chromoly Steerer Tube and Hi-Ten Legs
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BARS:
- MATERIAL: Chromoly
- TYPE: 2-Piece
- RISE: 8.7" Rise
- WIDTH: 29" Width - STEM: Alloy Top Load
- HEADSET: Integrated
- BRAKE MOUNTS: Welded Mount
- BRAKES: U-Brake
- FRONT HUB: Sealed
- FRONT RIM: Single Wall
- REAR HUB: 10mm Sealed Cassette
- REAR RIM: Single Wall
- TYRES: 2.4"
- SPROCKET: 25T
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CRANKS:
- MATERIAL: Chromoly
- TYPE:
- ARM LENGTH: 160mm - BB: 19mm Mid
- PEDALS: Nylon/Fiberglass
- SEAT: Combo Seat/Post
- GEARING: 25/9
- WEIGHT: TBC
Product Highlights
- Full Size Bike with a Shorter Top Tube and geometry to Suit riders who are 4ft - 5ft 4" / 120cm -160cm
- A great all rounder suitable for any type of riding
- Built strong and lightweight
- Includes sealed bearings
- Great spec for a BMX in this price bracket
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.
Click here to view all BMX Bikes
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) |
