BSD ALVX AF Frame

€419.95 Out of Stock

BSD ALVX AF Frame

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€419.95 Out of Stock
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  • The ALVX AF frame by BSD features a super tech invest cast chainstay yoke which gives even more tyre clearance as well as stiffening up the rear triangle. Your wheel can be slammed at an extremely short 12.5" Chainstay length with no worries of your tyre rubbing!

    On a frame the highest concentration of stress is at the junctions between the headtube/toptube and headtube/downtube. To handle the pressures of modern riding, the required strength is achieved using a combination of butted tubing and external gussets.

    The dropout is cast as one piece, much stronger than a plate welded to a tube, 7mm thick to provide good support for your axle, and the small shape has been designed for grinding meaning there's no overhang to catch on ledges or rails, also the dropout is heat treated before welding making it extra tough. There are integrated chain tensioner bolts to keep the wheel in place.

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Product Specs
  1. MATERIAL: 4130 Chromoly
  2. HEAD TUBE ANGLE: 75.5°
  3. SEAT TUBE ANGLE: 71°
  4. CHAIN STAY LENGTH: 12.5"
  5. BB HEIGHT: 11.7"
  6. WHEEL SIZE: 20"
  7. STANDOVER HEIGHT: 8.7"
  8. DROPOUT SIZE: 14mm
  9. HEADSET TYPE: Integrated
  10. BB TYPE: Mid
  11. BRAKE MOUNTS: Brakeless
  12. GYRO TABS: Brakeless
  13. WEIGHT: 5lbs

Product Highlights
  • Responsive Geometry with Short Backend and Steep Headtube
  • Best suited to Street and Park riding
  • High-quality Chromoly construction
  • Built in chain tensioners
  • Strong and durable investment cast chainstay yoke

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UNDERSTANDING FRAME GEOMETRY

BMX frame geometry can look daunting, but thanks to our handy guide below you will have it figured out in no time. Remember, we're all BMXers here so if you have any questions just ask.

Keep reading to find your perfect frame, or click below to watch the buyers guide video.

FRAME SIZE CHART

Frame sizing is very much a personal preference: some riders like them longer, others shorter. Here's a rough guide - if you have any questions remember we are here to help!

3ft - 3ft 8" - best suited to a 16" BMX bike
3ft 8" - 4ft - best suited an 18" BMX bike
4ft - 5ft - 18" to 20" top tube
5ft - 5ft 4" - 20" to 20.25" top tube
5ft 4" - 5ft 8" - 20.25" to 21" top tube
5ft 8" - 6ft - 21" to 21.25" top tube
6ft plus - 21" top tube or longer
Rider Height (in) Rider Height (cm) Top Tube Length
5' 152 20"
5'3" 160 20.5"
5'6" 167 20.75"
5'9" 175 21"
6' 182 21.25"
6'6" 200  21.5"

FRAME GEOMETRY

Frame geometry can take a bit of understanding - but here at SourceBMX we are here to help! The first thing to understand is that BMX frame sizing is best measured by the length of the top tube - shown here as TT. Keep reading on to understand how the angles change how your frame will feel!