A Subrosa MR2 Frame (Bjarki Hardarson Signature) in Glacier Blue, shown sideways without wheels, seat, or handlebars on a white background.
The Subrosa MR2 Frame (Bjarki Hardarson Signature) in Glacier Blue features an iceberg graphic on the head tube, highlighting both the above and below water sections.
Close-up of the Subrosa MR2 Frame (Bjarki Hardarson Signature) in Glacier Blue, focusing on the bottom bracket area with detailed welds and a partial view of the logo.
Close-up of the Subrosa MR2 Frame (Bjarki Hardarson Signature) in Glacier Blue, highlighting the welded joint where the top tube, seat tube, and seat stay meet.
Close-up of the Subrosa MR2 Frame (Bjarki Hardarson Signature) in Glacier Blue, showcasing an Icelandic flag, Norse runes, and a cartoon polar bear on the front tube—designed with rider Bjarki Hardarson.

Highlights

  • Bjarki Hardarson's Glacier Blue colourway
  • Double butted chromoly main tubes
  • Chainstays adjust 13.3" to 14"
  • Integrated seat clamp

Description

Bjarki Hardarson was born and raised in Iceland, and his guest colourway, Glacier Blue, is a tribute to home. The graphics use the traditional Icelandic alphabet, with polar bears for the few that have made it to the country by iceberg.

Bjarki rides the Subrosa MR2, so that is the frame he customised. It is 4130 chromoly with a double butted top tube and down tube, a 75° head tube, a 71° seat tube with an integrated clamp, and chainstays that run 13.3" to 14".

Features
  • Bjarki Hardarson's Glacier Blue colourway. The Icelandic alphabet lettering and polar bear graphics are Bjarki's nod to the country he grew up in.
  • Double butted chromoly main tubes. 4130 chromoly with butting through the top tube and down tube trims weight at the middle of the tube where it is not needed.
  • Chainstays adjust 13.3" to 14". Slam the wheel forward for a quicker back end, or run it long when you want the bike to feel more settled.
  • Integrated seat clamp. The clamp is built into the 9.0" seat tube, so there is one less part to lose, snag or ding.
  • 2.2 kg with a mid bottom bracket. Light for a street and park frame, with an 11.3" bottom bracket height and a 75° head tube for a quick front end.

Specifications
  • Sizes: 21.5"
  • Chainstay: 13.3" to 14"
  • Head tube angle: 75°
  • Seat tube angle: 71°
  • Bottom bracket height: 11.3"
  • Bottom bracket: Mid
  • Material: 4130 chromoly
  • Butting: Double butted top tube and down tube
  • Head tube: 120mm
  • Seat tube: 9.0"
  • Seat clamp: Integrated
  • Weight: 2.2 kg (20.5")
  • Colour: Glacier Blue

Subrosa MR2 Frame (Bjarki Hardarson Signature)

Brand: Subrosa SKU:

$582.00 USD

Or 4 payments of $145.50 USD with

Colour - Glacier Blue

Top Tube Length - 21.5

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

Subrosa MR2 Frame (Bjarki Hardarson Signature) - Glacier Blue / 21.5

$582.00 USD

Price match request

$12.99 flat-rate shipping Australia-wide

Express from $21.99

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