Matte black Volume Kris Fox Thunderhoof Frame with decals, made from heat-treated chromoly, shown on a plain white background.
A close-up of the Volume Kris Fox Thunderhoof Frame’s black chromoly metal tube shows decorative white text and a circular opening at the top.
Matte black Volume Kris Fox Thunderhoof Frame with white text on the top tube near the head tube, made from heat-treated chromoly and shown against a white background.
The Volume Kris Fox Thunderhoof Frame, a black heat-treated chromoly BMX frame, is shown on a white background without wheels, seat, or handlebars attached.
A close-up of the Volume Kris Fox Thunderhoof Frame in black showcases its heat-treated chromoly rear triangle, including chainstays, seatstays, and dropout area against a white background.

Highlights

  • Fully heat-treated chromoly
  • Oval down tube
  • 6mm laser-cut dropouts
  • Four top tube lengths

Description

Kris Fox’s signature Thunderhoof frame is built for speed, style, and going big on transition. This frame is fully heat-treated chromoly with multi-butted tubing, keeping the strength high and the weight low.

An oval downtube adds dent resistance, while 6mm laser-cut dropouts with built-in chain tensioners, a classic wishbone chainstay, CNC seatstay bridge, and externally butted seat tube bring proven function and durability. The new stacked logo gusset gives the Thunderhoof that extra bit of style up front.

Features
  • Fully heat-treated chromoly. Multi-butted tubing keeps the strength high and the weight low, so the frame takes a beating without feeling heavy.
  • Oval down tube. Shaped for dent resistance where the front of the frame is most likely to cop a hit.
  • 6mm laser-cut dropouts. Heat-treated, with built-in chain tensioners so setting your wheel straight and keeping it there is quick.
  • Four top tube lengths. 20.75", 21", 21.25" and 21.5", so you can match the frame to your height and your riding.
  • Removable seatstay brake mounts. Run a rear brake, or take the mounts off for a clean back end.

Specifications
  • Top tube: 20.75", 21", 21.25", 21.5"
  • Chainstay: 13.8" (slammed)
  • Head tube angle: 74.5°
  • Seat tube angle: 71°
  • Bottom bracket height: 11.4" (varies with setup)
  • Material: Fully heat-treated chromoly
  • Tubing: Oval down tube, wishbone chainstay, CNC seatstay bridge, stacked logo gusset
  • Butting: Multi-butted, externally butted seat tube
  • Dropouts: 6mm heat-treated, laser-cut, with built-in tensioners
  • Brake mounts: Removable (seatstay)
  • Head tube: Integrated Campy spec (45° x 45°), 5" tall
  • Seat tube: 9" tall, 25.4mm seat post
  • Colour: Flat Black

Volume Kris Fox Thunderhoof Frame

Brand: Volume SKU:

$749.99 AUD

Or 4 payments of $187.49 AUD with

Colour - Black

Top Tube Length - 20.75

20 inch BMX frame sizing

Frames are sized by top tube length. Start with your height, then let riding style decide where in the range you land.

Rider heightTop tube
147 to 157cm19.75 to 20.25"
157 to 168cm20 to 20.5"
168 to 175cm20.25 to 20.75"
175 to 183cm20.5 to 21"
183 to 190cm and up20.75 to 21.5"

The height bands overlap on purpose. If you land in two of them, riding style breaks the tie: longer for flow, trails and transitions, shorter for technical street and park. Plenty of riders, pros included, deliberately ride longer than a chart suggests.

How to measure

Top tube is measured from the centre of the seat tube to the centre of the head tube, so it is not the length of the tube you can see. Measure your current frame that way and compare.

  • Size up for stability through trails and transitions.
  • Size down if you want the bike quick and twitchy for spins and grinds.
  • Top tube is fixed once you buy, but chainstay length, stem length, fork offset and bar position all change how the built bike feels.

Not sure? Tell us your height and how you ride, and we will tell you what we would put you on.

Read the full buying guide

20 inch BMX frame sizing

Frames are sized by top tube length. Start with your height, then let riding style decide where in the range you land.

Rider heightTop tube
147 to 157cm19.75 to 20.25"
157 to 168cm20 to 20.5"
168 to 175cm20.25 to 20.75"
175 to 183cm20.5 to 21"
183 to 190cm and up20.75 to 21.5"

The height bands overlap on purpose. If you land in two of them, riding style breaks the tie: longer for flow, trails and transitions, shorter for technical street and park. Plenty of riders, pros included, deliberately ride longer than a chart suggests.

How to measure

Top tube is measured from the centre of the seat tube to the centre of the head tube, so it is not the length of the tube you can see. Measure your current frame that way and compare.

  • Size up for stability through trails and transitions.
  • Size down if you want the bike quick and twitchy for spins and grinds.
  • Top tube is fixed once you buy, but chainstay length, stem length, fork offset and bar position all change how the built bike feels.

Not sure? Tell us your height and how you ride, and we will tell you what we would put you on.

Read the full buying guide

Volume Kris Fox Thunderhoof Frame - Black / 20.75

$749.99 AUD

Price match request

$12.99 flat-rate shipping Australia-wide, Express from $21.99

Free in-store pickup - Brisbane

Availability

20.752121.2521.5
Black

● In stock at LUXBMX ● With supplier ● Preorder ○ Sold out

Building a bike around this frame?

Add it to your cart, then pick the rest in our bike builder. Complete the build for 10% off the parts and free assembly.

Open the bike builder

Need Help ?

Chat with the LUXBMX crew!

Email Us Call Us SMS Us
  • 100% Australian owned
  • Australia's largest BMX range
  • Hassle-free returns
  • Fast trackable shipping

Price match request

Seen it cheaper somewhere else? Send us the link and we'll take a look.