Subrosa MR3 Frame

Name: Subrosa MR3 Frame
Brand: Subrosa
Price: 377.99 GBP
Availability: OutOfStock

£419.99 £377.99 Save 10%

Tax included.

Colour — Bjarki Hardrson Glacier Blue Colourway

Bjarki Hardrson Glacier Blue Colourway

Black

Matte White

Out Of Stock
Earn Source Rewards Points!

Get a half-price headset and BB with any frame!
Save up to 50% OFF in our BLACK FRIDAY SALE

Quantity

Notify Me When Back In Stock

Add To Wishlist

Order Now For Express Shipping Options!

[{"id":56214474981754,"title":"Bjarki Hardrson Glacier Blue Colourway \/ 21.1\"","option1":"Bjarki Hardrson Glacier Blue Colourway","option2":"21.1\"","option3":null,"sku":"GS17774","requires_shipping":true,"taxable":true,"featured_image":null,"available":false,"name":"Subrosa MR3 Frame - Bjarki Hardrson Glacier Blue Colourway \/ 21.1\"","public_title":"Bjarki Hardrson Glacier Blue Colourway \/ 21.1\"","options":["Bjarki Hardrson Glacier Blue Colourway","21.1\""],"price":37799,"weight":8000,"compare_at_price":41999,"inventory_management":"shopify","barcode":"810102427076","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":56214475014522,"title":"Black \/ 21.1\"","option1":"Black","option2":"21.1\"","option3":null,"sku":"GS17764","requires_shipping":true,"taxable":true,"featured_image":{"id":81882132808058,"product_id":15503716417914,"position":1,"created_at":"2025-11-21T11:58:54+00:00","updated_at":"2025-11-21T11:58:57+00:00","alt":null,"width":1000,"height":1000,"src":"\/\/www.sourcebmx.com\/cdn\/shop\/files\/19ec0604-4924-4362-b06a-192b0843df89.jpg?v=1763726337","variant_ids":[56214475014522,56214475047290,56214475080058,56214475112826,56214475440506]},"available":false,"name":"Subrosa MR3 Frame - Black \/ 21.1\"","public_title":"Black \/ 21.1\"","options":["Black","21.1\""],"price":35999,"weight":8000,"compare_at_price":39999,"inventory_management":"shopify","barcode":"810102426970","featured_media":{"alt":null,"id":68925401268602,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/www.sourcebmx.com\/cdn\/shop\/files\/19ec0604-4924-4362-b06a-192b0843df89.jpg?v=1763726337"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":56214475047290,"title":"Black \/ 21\"","option1":"Black","option2":"21\"","option3":null,"sku":"GS17763","requires_shipping":true,"taxable":true,"featured_image":{"id":81882132808058,"product_id":15503716417914,"position":1,"created_at":"2025-11-21T11:58:54+00:00","updated_at":"2025-11-21T11:58:57+00:00","alt":null,"width":1000,"height":1000,"src":"\/\/www.sourcebmx.com\/cdn\/shop\/files\/19ec0604-4924-4362-b06a-192b0843df89.jpg?v=1763726337","variant_ids":[56214475014522,56214475047290,56214475080058,56214475112826,56214475440506]},"available":false,"name":"Subrosa MR3 Frame - Black \/ 21\"","public_title":"Black \/ 21\"","options":["Black","21\""],"price":35999,"weight":8000,"compare_at_price":39999,"inventory_management":"shopify","barcode":"810102426963","featured_media":{"alt":null,"id":68925401268602,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/www.sourcebmx.com\/cdn\/shop\/files\/19ec0604-4924-4362-b06a-192b0843df89.jpg?v=1763726337"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":56214475080058,"title":"Black \/ 20.5\"","option1":"Black","option2":"20.5\"","option3":null,"sku":"GS17761","requires_shipping":true,"taxable":true,"featured_image":{"id":81882132808058,"product_id":15503716417914,"position":1,"created_at":"2025-11-21T11:58:54+00:00","updated_at":"2025-11-21T11:58:57+00:00","alt":null,"width":1000,"height":1000,"src":"\/\/www.sourcebmx.com\/cdn\/shop\/files\/19ec0604-4924-4362-b06a-192b0843df89.jpg?v=1763726337","variant_ids":[56214475014522,56214475047290,56214475080058,56214475112826,56214475440506]},"available":false,"name":"Subrosa MR3 Frame - Black \/ 20.5\"","public_title":"Black \/ 20.5\"","options":["Black","20.5\""],"price":35999,"weight":8000,"compare_at_price":39999,"inventory_management":"shopify","barcode":"810102426949","featured_media":{"alt":null,"id":68925401268602,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/www.sourcebmx.com\/cdn\/shop\/files\/19ec0604-4924-4362-b06a-192b0843df89.jpg?v=1763726337"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":56214475112826,"title":"Black \/ 20.75\"","option1":"Black","option2":"20.75\"","option3":null,"sku":"GS17762","requires_shipping":true,"taxable":true,"featured_image":{"id":81882132808058,"product_id":15503716417914,"position":1,"created_at":"2025-11-21T11:58:54+00:00","updated_at":"2025-11-21T11:58:57+00:00","alt":null,"width":1000,"height":1000,"src":"\/\/www.sourcebmx.com\/cdn\/shop\/files\/19ec0604-4924-4362-b06a-192b0843df89.jpg?v=1763726337","variant_ids":[56214475014522,56214475047290,56214475080058,56214475112826,56214475440506]},"available":false,"name":"Subrosa MR3 Frame - Black \/ 20.75\"","public_title":"Black \/ 20.75\"","options":["Black","20.75\""],"price":35999,"weight":8000,"compare_at_price":39999,"inventory_management":"shopify","barcode":"810102426956","featured_media":{"alt":null,"id":68925401268602,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/www.sourcebmx.com\/cdn\/shop\/files\/19ec0604-4924-4362-b06a-192b0843df89.jpg?v=1763726337"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":56214475145594,"title":"Bjarki Hardrson Glacier Blue Colourway \/ 20.5\"","option1":"Bjarki Hardrson Glacier Blue Colourway","option2":"20.5\"","option3":null,"sku":"GS17771","requires_shipping":true,"taxable":true,"featured_image":null,"available":false,"name":"Subrosa MR3 Frame - Bjarki Hardrson Glacier Blue Colourway \/ 20.5\"","public_title":"Bjarki Hardrson Glacier Blue Colourway \/ 20.5\"","options":["Bjarki Hardrson Glacier Blue Colourway","20.5\""],"price":37799,"weight":8000,"compare_at_price":41999,"inventory_management":"shopify","barcode":"810102427045","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":56214475178362,"title":"Matte White \/ 20.5\"","option1":"Matte White","option2":"20.5\"","option3":null,"sku":"GS17766","requires_shipping":true,"taxable":true,"featured_image":{"id":81882132906362,"product_id":15503716417914,"position":4,"created_at":"2025-11-21T11:58:54+00:00","updated_at":"2025-11-21T11:58:57+00:00","alt":null,"width":1000,"height":1000,"src":"\/\/www.sourcebmx.com\/cdn\/shop\/files\/c9263b63-d9be-4810-84af-20cc70e0d4e4.jpg?v=1763726337","variant_ids":[56214475178362]},"available":false,"name":"Subrosa MR3 Frame - Matte White \/ 20.5\"","public_title":"Matte White \/ 20.5\"","options":["Matte White","20.5\""],"price":37799,"weight":8000,"compare_at_price":41999,"inventory_management":"shopify","barcode":"810102426994","featured_media":{"alt":null,"id":68925401366906,"position":4,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/www.sourcebmx.com\/cdn\/shop\/files\/c9263b63-d9be-4810-84af-20cc70e0d4e4.jpg?v=1763726337"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":56214475211130,"title":"Matte White \/ 20.75\"","option1":"Matte White","option2":"20.75\"","option3":null,"sku":"GS17767","requires_shipping":true,"taxable":true,"featured_image":{"id":81882132939130,"product_id":15503716417914,"position":5,"created_at":"2025-11-21T11:58:54+00:00","updated_at":"2025-11-21T11:58:57+00:00","alt":null,"width":1000,"height":1000,"src":"\/\/www.sourcebmx.com\/cdn\/shop\/files\/1bf16bcc-f996-464e-9658-a3d19f719b55.jpg?v=1763726337","variant_ids":[56214475211130,56214475276666,56214475342202,56214475374970]},"available":false,"name":"Subrosa MR3 Frame - Matte White \/ 20.75\"","public_title":"Matte White \/ 20.75\"","options":["Matte White","20.75\""],"price":37799,"weight":8000,"compare_at_price":41999,"inventory_management":"shopify","barcode":"810102427007","featured_media":{"alt":null,"id":68925401399674,"position":5,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/www.sourcebmx.com\/cdn\/shop\/files\/1bf16bcc-f996-464e-9658-a3d19f719b55.jpg?v=1763726337"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":56214475243898,"title":"Bjarki Hardrson Glacier Blue Colourway \/ 20.75\"","option1":"Bjarki Hardrson Glacier Blue Colourway","option2":"20.75\"","option3":null,"sku":"GS17772","requires_shipping":true,"taxable":true,"featured_image":null,"available":false,"name":"Subrosa MR3 Frame - Bjarki Hardrson Glacier Blue Colourway \/ 20.75\"","public_title":"Bjarki Hardrson Glacier Blue Colourway \/ 20.75\"","options":["Bjarki Hardrson Glacier Blue Colourway","20.75\""],"price":37799,"weight":8000,"compare_at_price":41999,"inventory_management":"shopify","barcode":"810102427052","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":56214475276666,"title":"Matte White \/ 21.1\"","option1":"Matte White","option2":"21.1\"","option3":null,"sku":"GS17769","requires_shipping":true,"taxable":true,"featured_image":{"id":81882132939130,"product_id":15503716417914,"position":5,"created_at":"2025-11-21T11:58:54+00:00","updated_at":"2025-11-21T11:58:57+00:00","alt":null,"width":1000,"height":1000,"src":"\/\/www.sourcebmx.com\/cdn\/shop\/files\/1bf16bcc-f996-464e-9658-a3d19f719b55.jpg?v=1763726337","variant_ids":[56214475211130,56214475276666,56214475342202,56214475374970]},"available":false,"name":"Subrosa MR3 Frame - Matte White \/ 21.1\"","public_title":"Matte White \/ 21.1\"","options":["Matte White","21.1\""],"price":37799,"weight":8000,"compare_at_price":41999,"inventory_management":"shopify","barcode":"810102427021","featured_media":{"alt":null,"id":68925401399674,"position":5,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/www.sourcebmx.com\/cdn\/shop\/files\/1bf16bcc-f996-464e-9658-a3d19f719b55.jpg?v=1763726337"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":56214475309434,"title":"Bjarki Hardrson Glacier Blue Colourway \/ 21\"","option1":"Bjarki Hardrson Glacier Blue Colourway","option2":"21\"","option3":null,"sku":"GS17773","requires_shipping":true,"taxable":true,"featured_image":null,"available":false,"name":"Subrosa MR3 Frame - Bjarki Hardrson Glacier Blue Colourway \/ 21\"","public_title":"Bjarki Hardrson Glacier Blue Colourway \/ 21\"","options":["Bjarki Hardrson Glacier Blue Colourway","21\""],"price":37799,"weight":8000,"compare_at_price":41999,"inventory_management":"shopify","barcode":"810102427069","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":56214475342202,"title":"Matte White \/ 21\"","option1":"Matte White","option2":"21\"","option3":null,"sku":"GS17768","requires_shipping":true,"taxable":true,"featured_image":{"id":81882132939130,"product_id":15503716417914,"position":5,"created_at":"2025-11-21T11:58:54+00:00","updated_at":"2025-11-21T11:58:57+00:00","alt":null,"width":1000,"height":1000,"src":"\/\/www.sourcebmx.com\/cdn\/shop\/files\/1bf16bcc-f996-464e-9658-a3d19f719b55.jpg?v=1763726337","variant_ids":[56214475211130,56214475276666,56214475342202,56214475374970]},"available":false,"name":"Subrosa MR3 Frame - Matte White \/ 21\"","public_title":"Matte White \/ 21\"","options":["Matte White","21\""],"price":37799,"weight":8000,"compare_at_price":41999,"inventory_management":"shopify","barcode":"810102427014","featured_media":{"alt":null,"id":68925401399674,"position":5,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/www.sourcebmx.com\/cdn\/shop\/files\/1bf16bcc-f996-464e-9658-a3d19f719b55.jpg?v=1763726337"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":56214475374970,"title":"Matte White \/ 21.5\"","option1":"Matte White","option2":"21.5\"","option3":null,"sku":"GS17770","requires_shipping":true,"taxable":true,"featured_image":{"id":81882132939130,"product_id":15503716417914,"position":5,"created_at":"2025-11-21T11:58:54+00:00","updated_at":"2025-11-21T11:58:57+00:00","alt":null,"width":1000,"height":1000,"src":"\/\/www.sourcebmx.com\/cdn\/shop\/files\/1bf16bcc-f996-464e-9658-a3d19f719b55.jpg?v=1763726337","variant_ids":[56214475211130,56214475276666,56214475342202,56214475374970]},"available":false,"name":"Subrosa MR3 Frame - Matte White \/ 21.5\"","public_title":"Matte White \/ 21.5\"","options":["Matte White","21.5\""],"price":37799,"weight":8000,"compare_at_price":41999,"inventory_management":"shopify","barcode":"810102427038","featured_media":{"alt":null,"id":68925401399674,"position":5,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/www.sourcebmx.com\/cdn\/shop\/files\/1bf16bcc-f996-464e-9658-a3d19f719b55.jpg?v=1763726337"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":56214475407738,"title":"Bjarki Hardrson Glacier Blue Colourway \/ 21.5\"","option1":"Bjarki Hardrson Glacier Blue Colourway","option2":"21.5\"","option3":null,"sku":"GS17775","requires_shipping":true,"taxable":true,"featured_image":null,"available":false,"name":"Subrosa MR3 Frame - Bjarki Hardrson Glacier Blue Colourway \/ 21.5\"","public_title":"Bjarki Hardrson Glacier Blue Colourway \/ 21.5\"","options":["Bjarki Hardrson Glacier Blue Colourway","21.5\""],"price":37799,"weight":8000,"compare_at_price":41999,"inventory_management":"shopify","barcode":"810102427083","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":56214475440506,"title":"Black \/ 21.5\"","option1":"Black","option2":"21.5\"","option3":null,"sku":"GS17765","requires_shipping":true,"taxable":true,"featured_image":{"id":81882132808058,"product_id":15503716417914,"position":1,"created_at":"2025-11-21T11:58:54+00:00","updated_at":"2025-11-21T11:58:57+00:00","alt":null,"width":1000,"height":1000,"src":"\/\/www.sourcebmx.com\/cdn\/shop\/files\/19ec0604-4924-4362-b06a-192b0843df89.jpg?v=1763726337","variant_ids":[56214475014522,56214475047290,56214475080058,56214475112826,56214475440506]},"available":false,"name":"Subrosa MR3 Frame - Black \/ 21.5\"","public_title":"Black \/ 21.5\"","options":["Black","21.5\""],"price":35999,"weight":8000,"compare_at_price":39999,"inventory_management":"shopify","barcode":"810102426987","featured_media":{"alt":null,"id":68925401268602,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/www.sourcebmx.com\/cdn\/shop\/files\/19ec0604-4924-4362-b06a-192b0843df89.jpg?v=1763726337"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}]

Product Description

Matt Ray has been a part of BMX and Subrosa for a long time now. He continues to push the limits of his riding and push the limits of his products. His signature frame has gone through a few variations, and we’re stoked to present the MR3.

While this new version of his frame isn’t much different than the previous version Matt did fine tune a few specs like lowering the BB Height and adding a longer Top Tube option. Check out the new decals too!

Product Specs

MATERIAL: Chromoly
HEAD TUBE ANGLE: 75°
SEAT TUBE ANGLE: 71°
CHAIN STAY LENGTH: 13.3" - 14"
BB HEIGHT: 11.3"
WHEEL SIZE: 20"
STANDOVER HEIGHT:
DROPOUT SIZE: 14mm
HEADSET TYPE: Integrated
BB TYPE: Mid
BRAKE MOUNTS: Removable (Sold separately)
GYRO TABS: Removable (Sold separately)
WEIGHT: TBC

Product Highlights

Neutral geometry for responsiveness and stability
Great all round frame for all types of riding
High-quality chromoly construction
Removable brake hardware (Brake hardware not included)
Integrated seat post clamp

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"

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!

FREE UK SHIPPING* OVER £99.99

Free UK shipping available on orders over £99.99

DELIVERY INFO

90-Day Returns & Exchanges

Hassle-free returns & exchanges so you can buy in complete confidence

FIND OUT MORE

OUR Price Match Promise

Always get the best price - we'll match any legitimate competitor

Customers Rate Us Excellent

With over 20k reviews and an average score of 4.9/5.0

SEE OUR REVIEWS

Quicklinks

Your Account

Subrosa MR3 Frame

Subrosa MR3 Frame

Product Description

Product Specs

Product Highlights

UNDERSTANDING FRAME GEOMETRY

FRAME SIZE CHART

FRAME GEOMETRY

HALF PRICE HEADSET AND BB WITH FRAMES

FREE UK SHIPPING* OVER £99.99

90-Day Returns & Exchanges

OUR Price Match Promise

Customers Rate Us Excellent

Price Match Request