LEGO Kai's Motorcycle Speed Race (71838)

NINJAGO · 79 pieces · 2 minifigures

From $9.97 at Amazon

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

LEGO Kai's Motorcycle Speed Race (71838)

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Compare prices (US)

Regular price $9.99

See it at Amazon, $9.97

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: $9.97; at Amazon
Lowest we’ve recorded: $9.97; Amazon, Oct 5, 2026
LEGO’s regular price: $9.99
Tracked since: Sep 29, 2026; 20 price changes since

Price records (25)

October 22, 2026 · Amazon$9.97
October 22, 2026 · Amazon$9.99
October 20, 2026 · LEGO.comout of stock$9.99
October 19, 2026 · Amazon$9.97
October 19, 2026 · Amazon$9.99
October 18, 2026 · Amazon$9.97
October 18, 2026 · Amazon$9.99
October 15, 2026 · Amazon$9.97
October 15, 2026 · Amazon$9.99
October 14, 2026 · Amazon$9.97
October 14, 2026 · LEGO.com$9.99
October 14, 2026 · Amazon$9.99
October 13, 2026 · LEGO.com$9.99
October 13, 2026 · Targetout of stock$9.99
October 13, 2026 · Amazon$9.97
October 13, 2026 · Target$9.99
October 12, 2026 · Amazon$9.99
October 11, 2026 · Amazon$9.97
October 11, 2026 · Best Buy$9.99
October 11, 2026 · Barnes & Noble$9.99
October 10, 2026 · Amazon$9.99
October 9, 2026 · Amazon$9.97
October 8, 2026 · Amazon$9.99
October 5, 2026 · Amazon$9.97
September 29, 2026 · LEGO.com$9.99

Prices at LEGO.com, Amazon, Walmart, Target, Best Buy, and Barnes & Noble, checked daily. A line breaks when a store was out of stock or not selling the set.

LEGO Kai's Motorcycle Speed Race 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 USDStore

AustraliaBest priceAmazon.com.auA$10.00$7.01Amazon.com.au
ÖsterreichOTTO€6.81$7.63OTTO
DeutschlandSteinehelden€7.13$7.99Steinehelden
US(this page)Amazon$9.97$9.97Amazon

Show all 13 countries

Exchange rates of October 22, 2026.

Resale value

What the LEGO Kai's Motorcycle Speed Race actually sold for on BrickLink, the LEGO-owned marketplace, in the last 6 months.

New

$7.67

Median of 6 sales (worldwide), from $5.49 to $12.00

-23% vs LEGO’s regular price ($9.99)

Used

No sales in the last 6 months.

Sales on BrickLink, updated daily (last update October 23, 2026). Few sales mean a less reliable figure.

Set details

Pieces: 79
Minifigures: 2
Ages: 6+
Released: 2025
Set number: 71838
Theme: NINJAGO
Price per piece: 12.6¢at today’s lowest price
LEGO.com rating: 4.4

LEGO Kai's Motorcycle Speed Race building instructions

Instructions bookletPDF, 8 MB

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 Motorcycle Speed Race parts list

67 pieces in 34 different parts and colors, plus 2 minifigures.

Minifigures

Kai, Red Shoulder Armor and Mask, Hair
Spectral Dragonian Warrior, Legs, Short Horns

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×499780
×499781
×344861
×344861
×369858
×21745
×26141
×215573
×221459
×230031
×247458
×255981
×255981
×289201
×292402
×298139
×299563
×11750
×13021
×13022
×13839b
×17182pat0001
×111477
×111477
×115208
×115573
×115573
×136840
×154200
×166909
×178257

Parts list: Rebrickable.

About the LEGO Kai's Motorcycle Speed Race

Kai’s Motorcycle Speed Race (71838) playset lets boys and girls aged 6 and up recreate fast-paced scenes from season 3 of the NINJAGO® Dragons Rising TV show. The action-packed motorcycle toy battle set features 2 ninja bike toys with moving wheels: Kai’s race bike adorned with 2 daggers, and the villainous Spectral Dragonian Scout’s demon bike.

The ninja vehicle set includes 2 NINJAGO minifigures to ride the bikes: Kai armed with a translucent reveal blade accessory and 2 golden katana sword accessories, and a Spectral Dragonian Scout with a sword accessory, so kids can enjoy great imaginative play on their own or with their friends as they stage good vs. evil 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. Set contains 79 pieces.

Motorcycle toy for kids – Boys and girls aged 6 and up can play out race and battle scenes from season 3 of the NINJAGO® Dragons Rising TV show with Kai’s Motorcycle Speed Race playset
2 ninja bike toys – Action-packed battle set features 2 motorcycle toys with moving wheels: Kai’s race bike adorned with 2 daggers and the Spectral Dragonian Scout’s demon bike
2 NINJAGO® minifigures – Role-play set comes with ninja warrior Kai and a villainous Spectral Dragonian Scout to ride the bike toys
Ninja weapons – Kai is armed with a translucent reveal blade accessory and 2 golden katana sword accessories, and the Spectral Dragonian Scout has a sword accessory
Small gift for kids – This adventure toy provides a fun build-and-play experience and is an everyday treat for kids who love social play with friends as they join forces with their ninja heroes
Bigger ninja adventures – Look out for more LEGO® NINJAGO® toys (sets sold separately) to enhance the action with Kai’s Motorcycle Speed Race
A universe of ninja toys – LEGO® NINJAGO® sets let kids escape into a fantasy world of adventures with their ninja heroes
Measurements – 79-piece LEGO® building set for kids includes Kai’s ninja bike toy, which measures over 1.5 in. (4 cm) high, 3.5 in. (9 cm) long and 1 in. (3 cm) wide

Description: LEGO.com.

LEGO Kai's Motorcycle Speed Race: FAQ

Is the LEGO Kai's Motorcycle Speed Race retiring?

Yes: the LEGO Kai's Motorcycle Speed Race is retiring soon. LEGO flags it “Retiring soon” on LEGO.com (it already carried the flag when we started tracking on September 29, 2026). Expect it to be gone by December 31, 2026 at the latest (70 days), possibly sooner once stock runs out. It is temporarily out of stock on LEGO.com. LEGO doesn’t publish exact dates: this one is our estimate.

How much is the LEGO Kai's Motorcycle Speed Race?

The lowest price we found today is $9.97 at Amazon, out of 3 stores selling it today (regular price $9.99). Prices change often: this page is updated every day.

Should I buy the LEGO Kai's Motorcycle Speed Race now or wait?

Retiring by December 31, 2026: buy it while you can. LEGO is retiring it: we expect it gone from LEGO.com by December 31, 2026, in 70 days. The best price today is $9.97 at Amazon, just under LEGO’s regular price of $9.99. New copies of retired sets tend to get scarcer and pricier.