Kai's Blade Cycle

Kai's Blade Cycle (71734-1) is a set in the Ninjago theme, released in 2021. It has 46 pieces and 2 minifigures.

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Number:71734-1
Released:June 2021
Pieces:46
Box size:15.7 × 14.1 × 4.5 cm
Theme:Ninjago

Box size and weight as measured by Brickset.

In numbers

Over the last 30 days the lowest shop price recorded for this set was 22.25 USD, taken from 30 days with a price on record.

Since 9/25/2026 the lowest shop price has risen from 16.99 USD to 22.35 USD, by 32 % (based on 42 days with a price on record).

LEGO planned to retire this set in July 2022.

Product details

Number: 71734-1
Name: Kai's Blade Cycle
Theme: Ninjago
Released: June 2021
Launched: June 2021
Retired: July 2022 in the United States
Pieces: 46
Minifigures: 2
RRP: ≈ 9.96 USD (13.99 CAD) (Canada)≈ 11.22 USD (9.99 EUR) (Germany)≈ 11.84 USD (45.99 PLN) (PL)≈ 12.05 USD (8.99 GBP) (United Kingdom)9.99 USD (United States)
Price per piece: ≈ 0.217 USD (0.304 CAD) (Canada)≈ 0.244 USD (0.217 EUR) (Germany)≈ 0.257 USD (1.000 PLN) (PL)≈ 0.262 USD (0.195 GBP) (United Kingdom)0.217 USD (United States)
Best price (30 days): 22.25 USD
Price per piece (best offer): 0.486 USD

≈ marks a price converted into this currency at the ECB reference rate of its own date — a reference indication, not a tradeable rate. The price as observed follows in brackets.

BrickLink market data

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Pricing

Best price ever≈ 16.69 USD (14.90 EUR) Advertising Sealed · gross · idee+spiel · seen 10/5/2026 Not compared yet, no exchange rate: 24 in other currencies

Current best offer≈ 22.35 USD (19.99 EUR) Advertising Sealed · gross · idee+spiel · seen 11/3/2026

Price history

Lowest shop price now22.35 USD
Lowest ever 16.83 USD

Each day's lowest price among the shops' current offers, including VAT. A price in another currency is converted at the ECB reference rate of its day.

Monthly lows as a table

Month	Lowest price
November 2026	22.33 USD
October 2026	16.83 USD
September 2026	16.92 USD

≈ marks a price converted into this currency at the ECB reference rate of its own date — a reference indication, not a tradeable rate. The price as observed follows in brackets.

Price statistics by condition

Nobody has sold this set recently.

Sources idee+spiel: 44 · Data in Brief: 24

Latest price from each shop

Sorted: lowest price first Show highest first

Countries (all)

Show prices for

Germany (DE)

Poland (PL)

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What each source tells us:

Shops: the country they are in, and a delivery within it. None says whether it delivers abroad.
LEGO's own shops: one storefront per country, each delivering within its country.
Hugendubel: in Germany, delivering to Germany and to Austria.
eBay: the country the item is in, and a delivery within the country of the eBay site it is listed on.
BrickLink: averages over sellers worldwide - no seller's country and no delivery.

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idee+spiel Sealed · gross · seen 11/3/2026

≈ 22.35 USD (19.99 EUR)

Go to shop

Data in Brief Sealed · gross · sold 5/1/2023

44.99 PLN

Go to shop

Amazon.com BrickDb shows no Amazon prices. The link opens a search for this set on Amazon's own site.

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Where these prices come from

On eBay

The cheapest eBay listings we saw in the last seven days. They are sellers' asking prices, so they are not in the shop price list or the best offer.

We have not seen a current eBay listing for this set.

Recommended retail price

What LEGO published as the recommended retail price, market by market, in that market's own currency. No market's price is ever derived from another's.

Canada ≈ 9.96 USD (13.99 CAD) unknown tax basis Available 8/3/2021 to 7/18/2022.Recorded by BrickDb since 10/2/2026

Germany ≈ 11.22 USD (9.99 EUR) gross Available 6/2/2021 to 8/5/2022.Recorded by BrickDb since 10/2/2026

PL ≈ 11.84 USD (45.99 PLN) gross No availability dates published.Recorded by BrickDb since 10/21/2026

United Kingdom ≈ 12.05 USD (8.99 GBP) gross Available 6/5/2021 to 6/21/2022.Recorded by BrickDb since 10/2/2026

United States 9.99 USD net Available 8/2/2021 to 7/18/2022.Recorded by BrickDb since 10/2/2026

≈ marks a price converted into this currency at the ECB reference rate of its own date — a reference indication, not a tradeable rate. The price as observed follows in brackets.

Building instructions

All building instructions for this set on LEGO.com

Parts in this set

27 inventory lines

Catalogue image of the part Plate Special 1 x 2 with Clip Horizontal on Side

Plate Special 1 x 2 with Clip Horizontal on Side 11476· Yellow

×1

Catalogue image of the part Plate Special 1 x 2 with Three Teeth [Tri-Tooth]

Plate Special 1 x 2 with Three Teeth [Tri-Tooth] 15208· Pearl Gold

×2

Catalogue image of the part Weapon Sword / Katana / Shamshir with Capped Pommel [Square Guard]

Weapon Sword / Katana / Shamshir with Capped Pommel [Square Guard] 21459· Flat Silver

×1

Catalogue image of the part Bar Holder with Hole and Bar Handle

Bar Holder with Hole and Bar Handle 23443· Pearl Gold

×2

Catalogue image of the part Tile 1 x 4 with Groove

Tile 1 x 4 with Groove 2431· Dark Bluish Gray

×2

Handlebars 30031· Black

×1

Catalogue image of the part Animal, Snake, Small

Animal, Snake, Small 30115· Green

×1

Catalogue image of the part Brick Special 1 x 4 Palisade [aka Log]

Brick Special 1 x 4 Palisade [aka Log] 30137· Reddish Brown

×2

Catalogue image of the part Plant, Round 1 x 1 - 3 Bamboo Leaves

Plant, Round 1 x 1 - 3 Bamboo Leaves 30176· Green

×1

Plate 2 x 4 3020· Dark Orange

×1

Plate 4 x 6 3032· Tan

×1

Catalogue image of the part Brick Round 1 x 1 Open Stud

Brick Round 1 x 1 Open Stud 3062b· Trans-Neon Green

×2

Catalogue image of the part Technic Pin Connector Plate 1 x 2 x 1 2/3 [Two Holes On Top]

Technic Pin Connector Plate 1 x 2 x 1 2/3 [Two Holes On Top] 32530· Dark Bluish Gray

×1

Catalogue image of the part Brick Arch 1 x 4

Brick Arch 1 x 4 3659· Light Bluish Gray

×1

Catalogue image of the part Technic Pin without Friction Ridges Lengthwise

Technic Pin without Friction Ridges Lengthwise 3673· Yellow

×7

Catalogue image of the part Plate Special 1 x 2, Top Clip [Open O]

Plate Special 1 x 2, Top Clip [Open O] 44861· Light Bluish Gray

×2

2 minifigures

Minifigures in this set

Kai (Legacy)

/ fig-001926 /

No retail priceNo recent sales

Serpentine Rattla - Sand Blue

/ fig-010956 /

No retail priceNo recent sales

Same theme, piece count within 15 %

Similar sets

Catalogue image of Spinjitzu Starter Set

Kai's Blade Cycle

In numbers

Product details

BrickLink market data

Can I build this?

Pricing

Price history

Latest price from each shop

On eBay

Recommended retail price

Building instructions

Parts in this set

Minifigures in this set

Kai (Legacy)

Serpentine Rattla - Sand Blue

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