BricksValue

LEGO Kai's Mech Storm Rider (71830)

NINJAGO · 333 pieces · 3 minifigures

From £35.99 at Amazon.co.uk · 20% off

Retiring by 31 December 2026 (70 days left) · How we estimate

LEGO Kai's Mech Storm Rider (71830)
1 / 10

Compare prices (UK)

Regular price £44.99

See it at Amazon.co.uk, £35.99

Last chance: New copies of retired sets tend to get scarcer and pricier.

. Amazon offers can be third-party (marked).

Also retiring soon in NINJAGO

Price history

Lowest price today
£35.99
at Amazon.co.uk
Lowest we’ve recorded
£29.98
John Lewis, 8 Oct 2026
LEGO’s regular price
£44.99
today’s lowest is 20% off
Tracked since
8 Oct 2026
11 price changes since
Price records (17)
  • 23 October 2026 · Kidinn£38.99
  • 20 October 2026 · Very£35.99
  • 20 October 2026 · Kidinn£36.99
  • 15 October 2026 · Amazon.co.uk£35.99
  • 15 October 2026 · Kidinn£37.49
  • 15 October 2026 · John Lewis£35.99
  • 14 October 2026 · Kidinn£37.00
  • 13 October 2026 · Kidinn£37.49
  • 13 October 2026 · Amazon.co.uk£37.00
  • 13 October 2026 · John Lewis£44.99
  • 10 October 2026 · Amazon.co.uk£30.19
  • 10 October 2026 · Very£44.99
  • 10 October 2026 · Argos£45.00
  • 10 October 2026 · John Lewis£37.00
  • 9 October 2026 · Amazon.co.uk£29.98
  • 8 October 2026 · John Lewis£29.98
  • 8 October 2026 · LEGO.com UK£44.99

Prices at LEGO.com UK, Amazon.co.uk, Argos, Smyths Toys, Very, John Lewis, The Entertainer and Kidinn, checked daily. A line breaks when a store was out of stock or not selling the set.

LEGO Kai's Mech Storm Rider in other countries

The lowest price today in each country where LEGO sells it, converted at the European Central Bank’s rate. Delivery across borders isn’t included: most stores only ship inside their own country.

CountryLowest priceIn GBP
Show all 13 countries

Exchange rates of 22 October 2026.

Resale value

What the LEGO Kai's Mech Storm Rider actually sold for on BrickLink, the LEGO-owned marketplace, in the last 6 months.

New

£28.17

Median of 1 sale (worldwide)

-37% vs LEGO’s regular price (£44.99)

Used

No sales in the last 6 months.

Sales on BrickLink, updated daily (last update 23 October 2026). Sold in US dollars, shown in British Pound at the ECB rate of 22 October 2026. Few sales mean a less reliable figure.

Set details

Pieces
333
Minifigures
3
Ages
7+
Released
2025
Set number
71830
Theme
NINJAGO
Price per piece
10.8pat today’s lowest price
LEGO.com rating
4.8
LEGO Insiders points
360

LEGO Kai's Mech Storm Rider building instructions

Official instructions from LEGO.com, free to download. The LEGO Builder app has them too, many with 3D steps. All instructions on LEGO.com

LEGO Kai's Mech Storm Rider parts list

317 pieces in 124 different parts and colors, plus 3 minifigures.

Minifigures

  • Dragonian Warrior, Short Horns, 28621pr9762 HeadDragonian Warrior, Short Horns, 28621pr9762 Head
  • Kai, Dark Red Suit, Red HelmetKai, Dark Red Suit, Red Helmet
  • Nya, Pearl Titanium OutfitNya, Pearl Titanium Outfit
  • Technic Pin with Friction Ridges Lengthwise with No Center Slots, Black×2561332
  • Tile Special 1 x 2 Grille with Bottom Groove, Pearl Gold×102412b
  • Plate Special 1 x 2 Rounded with 2 Open Studs, Tan×1035480
  • Plate Special 1 x 2, Top Clip [Open O], Black×1044861
  • Animal / Creature Body Part, Claw with Clip, Black×63171
  • Plate Special 1 x 2 with 5.9mm Centre Side Towball, Dark Bluish Gray×614417

Parts list: Rebrickable.

About the LEGO Kai's Mech Storm Rider

Kai’s Mech Storm Rider (71830) combo ninja toy lets boys and girls aged 7 and up recreate exhilarating scenes from season 3 of the NINJAGO® Dragons Rising TV show. Kids can play with the large action toy before they separate it into 2 smaller vehicles: Kai’s mech with posable head, arms and legs, a cockpit and a large storm blade accessory, and Nya’s flying motorbike toy with a cockpit, movable wings and 2 spring-loaded shooters.

This ninja vehicle playset comes with 3 NINJAGO minifigures: Kaiarmed with 2 crystal katana sword accessories, Nya armed with 2 golden katana sword accessories and a villainous Dragonian Warrior with its own sword accessory so kids can role-play epic battles.

The LEGO® NINJAGO range of sets and buildable ninja toys for kids includes dragons, vehicles and temples so fans can role-play adventures with their heroes. Each ninja playset can be created with the LEGO Builder app, which guides you and your child on an easy and intuitive building adventure.

  • Ninja toy for kids – Boys and girls aged 7 and up can play out amazing battles from season 3 of the NINJAGO® Dragons Rising TV show with Kai’s Mech Storm Rider
  • Combo ninja vehicle toy – This large NINJAGO® vehicle can be separated into 2 smaller vehicles: Kai’s mech and Nya’s flying motorcycle so kids can enjoy even more ninja playtime
  • Packed with features – Kai’s mech has a posable head, arms and legs, a cockpit and a storm blade accessory, and Nya’s flying motorbike toy has a cockpit, movable wings and 2 spring-loaded shooters
  • 3 NINJAGO® minifigures – Playset comes with Kai, Nya and a Dragonian Warrior, all with weapon accessories so kids can play out epic battles
  • Birthday gift for kids – This action toy provides a fun build-and-play experience and is a birthday gift idea for kids who love teaming up with their ninja heroes
  • Bigger ninja adventures – Look out for more LEGO® NINJAGO® toys (sets sold separately) to play out action with the Kai’s Mech Storm Rider
  • A universe of ninja toys – LEGO® NINJAGO® sets let kids escape into a fantasy world of adventures with their ninja heroes
  • Measurements – This 333-piece LEGO® building set for kids includes Kai’s Mech Storm Rider figure, which stands over 5.5 in. (14 cm) tall

Description: LEGO.com.

LEGO Kai's Mech Storm Rider: FAQ

Is the LEGO Kai's Mech Storm Rider retiring?

Yes: the LEGO Kai's Mech Storm Rider is retiring soon. LEGO flags it “Retiring soon” on LEGO.com UK (it already carried the flag when we started tracking on 8 October 2026). Expect it to be gone by 31 December 2026 at the latest (70 days), possibly sooner once stock runs out. LEGO doesn’t publish exact dates: this one is our estimate.

How much is the LEGO Kai's Mech Storm Rider?

The lowest price we found today is £35.99 at Amazon.co.uk, out of 6 stores selling it today (regular price £44.99). Prices change often: this page is updated every day.

Should I buy the LEGO Kai's Mech Storm Rider now or wait?

Retiring by 31 December 2026: buy it while you can. LEGO is retiring it: we expect it gone from LEGO.com UK by 31 December 2026, in 70 days. The best price today is £35.99 at Amazon.co.uk, 20% below LEGO’s regular price. New copies of retired sets tend to get scarcer and pricier.

Where can I find the instructions for the LEGO Kai's Mech Storm Rider?

LEGO publishes them for free on LEGO.com as 2 PDF booklets, linked on this page, and in the LEGO Builder app.

How many pieces are in the LEGO Kai's Mech Storm Rider (71830)?

333 pieces and 3 minifigures. At today’s price, that’s 10.8p per piece.

When was the LEGO Kai's Mech Storm Rider released?

It was released in 2025.

What is the LEGO Kai's Mech Storm Rider worth?

New, it sold for £28.17 on BrickLink (median of 1 sale in the last 6 months, worldwide). LEGO’s regular price is £44.99.

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