BSD ALVX AF Frame
BSD ALVX AF Frame
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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
- MATERIAL: 4130 Chromoly
- HEAD TUBE ANGLE: 75.5°
- SEAT TUBE ANGLE: 71°
- CHAIN STAY LENGTH: 12.5"
- BB HEIGHT: 11.7"
- WHEEL SIZE: 20"
- STANDOVER HEIGHT: 8.7"
- DROPOUT SIZE: 14mm
- HEADSET TYPE: Integrated
- BB TYPE: Mid
- BRAKE MOUNTS: Brakeless
- GYRO TABS: Brakeless
- 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" |