Subrosa Speedwolf Frame

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Regular price €375.35 €225.59 Out of Stock
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  • Subrosa are getting into the race game with their first race frame.… The Speedwolf!

    As Subrosa haven't done anything race specific before, they’ve had their guy Greg Lanthorne putting his all into making one hell of a frame. The Speedwolf is made from 100% Air Craft Quality Chromoly & features Hydro-formed oversize double butted down tube with gusset, Double butted top tube, Hydro-formed single butted seat tube, CNC integrated head tube, Dual Seat Stay Bridges, 3D Dropouts with chain adjustors and much more.

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Product Specs
  1. MATERIAL: Full 4130 Chromoly
  2. HEAD TUBE ANGLE: 74.5°
  3. SEAT TUBE ANGLE: 71°
  4. CHAIN STAY LENGTH: 14.25"
  5. BB HEIGHT: 11.5"
  6. WHEEL SIZE: 20"
  7. STANDOVER HEIGHT: 8"
  8. DROPOUT SIZE: 14mm
  9. HEADSET TYPE: Integrated
  10. BB TYPE: Euro
  11. BRAKE MOUNTS: Welded V-Brake
  12. GYRO TABS: N/A
  13. WEIGHT: 4.5lbs

Product Highlights
  • BMX Racing Specific Geometry
  • Race Specific Frame
  • Double butted down tube with gusset for added strength
  • Built in Chain Tensioners Keep your Wheel in Place
  • Welded V-brake mounts

NEED SOME HELP 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, and remember we're all bmxers here, so if you have any questions just ask.

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 - 4ft - best suited to a 16" or 18" wheeled 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

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 and check out our sizing chart below! 

Headtube Angle (HT)

Head tube angle determines the angle of your forks. A steeper HT (i.e 75°and higher) will make the bike turn quicker than a mellower angle (i.e 74.5 and lower°). The more responsive the frame, the more twitchy it will feel, especially at highspeed!

Chain Stay Length (CS)

The chain stay is essentially the length of the rear end of the bike. A shorter CS length will make the bike more responsive and a longer one more stable. As a rough guide a 13.5" long chain stay is about average.

Seat Tube Angle (ST)

Seat tube angles don’t vary too much (around 71°) and affect the centre of gravity. The steeper the angle the shorter your bike will feel. Some frames have a mellower seat tube angle (example 69˚) which makes for a longer frame without actually being longer and reduces how fast your frame turns.

Stand Over Height (SO)

Standover height is essentially how high your frame is. A frame with a low standover height is more responsive and easier to ‘throw around’ whilst a high SO height is more stable; particularly useful when going fast.

HALF PRICE HEADSET AND BB WITH FRAMES