Cult Shorty Killan Frame

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  • Kilian Roth signature colourway of the Shorty frame. Made from revised 100% cult classic tubing and featuring a short quick responsive back end and top and down tube gussets.

    The Shorty also features an integrated headtube, externally machined mid BB shell, investment cast seatpost clamp and seatstay bridge, and tapered seatstays with removable brake mounts.

    This frame has tidy double gussets and the seatstay bridge, with nice Cult branding. S-bend chainstays give you enough room for 2.4” tyres and the dropouts are 5mm, heat treated with a super clean shape and joint with the tubes.

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Product Specs
  1. MATERIAL: Full 4130 Chromoly
  2. HEAD TUBE ANGLE: 75.5°
  3. SEAT TUBE ANGLE: 70°
  4. CHAIN STAY LENGTH: 13"
  5. BB HEIGHT: 11.7"
  6. WHEEL SIZE: 20"
  7. STANDOVER HEIGHT: 8.75"
  8. DROPOUT SIZE: 14mm
  9. HEADSET TYPE: Integrated
  10. BB TYPE: Mid
  11. BRAKE MOUNTS: Removable
  12. GYRO TABS: Removable
  13. WEIGHT: 5.16lbs

Product Highlights
  • Responsive Geometry with Short Backend and Steep Headtube
  • Best suited to Street and Park riding
  • Strong and durable investment cast seatpost clamp and seatstay bridge
  • Tapered seatstays with removable brake mounts give the option to run brakes
  • Strong s-bend chainstays with room for 2.40” tyres

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