Modern Blackbird – X1b


The Modern Blackbird range offers a flowing ride for the savviest of surfer, and our X-2 bamboo construction produces a light, durable surfboard with extra strength on the deck.

  • 7'0"
  • 7'6"
  • 8'0"
  • 8'6"
  • 9'1"
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Product Description

The Modern Blackbird range offers a flowing ride for the savviest of surfer, and our X-2 bamboo construction produces a light, durable surfboard with extra strength on the deck.

OUTLINE: Classified as a fun shape, the outline is full and generous from nose to tail providing maximum stability on small to medium size waves. The rounded nose keeps the area up front and allows the rider to comfortably shift their weight forward. The slight taper through the tail lets you manoeuvre the board with ease.

ROCKER: Low-to-moderate rocker makes this board paddle onto waves really well, accelerate from the take off with minimal effort, and make flowing turns on the face of the wave.

CONTOURS: Vee-to-double concave bottom makes for easy rail-to-rail transitions, and offers control when driving off the tail.

FOIL: Designed with plenty of volume in the nose and tail, and out towards the rails, which provides added stability and makes this board simple to ride regardless of your skill level.

FINS: The 7’0 and 7’6 models are set up as a thruster to really maximize maneuverability, while the larger sizes, 8’0 and 9’1 come with a single box fin setup plus two side FCS fins for a more controlled feel.

The Blackbird has a bigger ‘sweet spot’ compared to other funboards on the market. This is a reliable board that will remain in your quiver for years.


NOTE: rider weight is based on board volume and intermediate rider skill level.
LengthWidthThickVolumeFins (supplied with board)Approx Weight Range
7'0''21 1/2''2 3/4''47 ltrFCSII Performer80kg / 176lb or less
7'6''21 5/8''2 7/8''53 ltrFCSII Performer85kg / 187lb
8'0''22''3''61 ltrFCSII Performer90kg / 198lb +
8'6''22 1/4''3 1/8''66 ltr6" center / FCS GX Sides90kg / 198lb
9'1''22 3/4''3 3/8''78 ltr7" center / FCS GX Sidesideal for all weights


Technical Info

Construction X1b Epoxy

X-1B Epoxy is an upgraded version of our X1 Epoxy. Still simple and effective construction using epoxy resin, woven fiberglass and a lightweight EPS core, but we remove a layer of fibreglass from the deck and add a .5mm layer of Bamboo. The EPS core is cut directly from the shapers files, and once custom shaped, is glassed in the traditional hand layup method with multiple layers of woven fiberglass and the bamboo.
This versatile construction is lightweight, affordable, and is very well suited to manufacturing surfboards and SUP’s. X-1B Epoxy boards are most popular for their subtle flex and memory recall properties, which translates into a board that feels light and responsive, and offers reliable performance regardless of the conditions. The Bamboo adds a beauty factor to this board.
You can find out more about GSI’s surfboard construction on our surfboard construction page.

Board Concave Vee Double
Rail Neutral
Wave Height 1-8ft Waves
Rider Skill Level Beginner, Intermediate, Advanced

3 reviews for Modern Blackbird – X1b

    Gavin Ehringer April 26, 2017

    I bought an 8′. It’s got a lot of volume and very little rocker, so it works on the mushy beach breaks of San Diego quite spectacularly. Easy to catch waves and easy to paddle, it is surprisingly light for a large board. The bamboo deck is beautiful and looks like it can take some punishment. The bottom proved easy to compression ding, but that’s not a big deal, just be careful.

    Clark Wilmington, NC May 23, 2016

    Finally got out on a clean 3 to 4′ offshore day. Board rode great. Changed up the fins to find the right combo. Board caught waves real easy and turned on a dime. Everyone in the water wanted to try it out. The best fin combo for me was a 7.5″ center fin with two small side fins. Looking forward to trying bigger waves. Thanks guys/gals for a good board so far

    Sean January 9, 2016

    Just spent 10 days in Kauai on my new Modern Blackbird 7′ board. Absolutely loved it. I have always owned short boards, but since I knew a few places I would be surfing on both the North and South shore of Kauai would be a better fit for a “funboard” size, I brought it along. Loved the maneuverability on the 4-5 ft swells, and still had fun on some smaller waves. Easier to turn than most of the 7 foot boards I had tried the last few months when I had some demos. Got some great compliments from people in the water about the appearance of the board too.

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