Lego Technic
Very nice and my son really enjoyed it.
Retailer prices for 42140 are sorted by the latest lowest price.
Retailer pricesPrice history 42140
We check Dutch retailers every day. This graph shows the full daily-low price series we have for this set.
Daily lowest price tracked across 3 Dutch retailers. The dotted line marks LEGO's recommended retail price.
Source: daily measurement at 3 Dutch retailers, 14 Dec 2025 – 14 May 2026. RRP via LEGO.com.
| Date | Price | Retailer | Stock |
|---|---|---|---|
| €209,99 | Steentjesplein | In stock | |
| €209,99 | Steentjesplein | In stock | |
| €209,99 | Steentjesplein | In stock | |
| €209,99 | Steentjesplein | In stock | |
| €219,99 | Unieke Bricks | In stock | |
| €219,99 | Unieke Bricks | In stock | |
| €209,99 | Steentjesplein | In stock | |
| €219,99 | Unieke Bricks | In stock | |
| €219,99 | Unieke Bricks | In stock | |
| €219,99 | Unieke Bricks | In stock | |
| €219,99 | Unieke Bricks | In stock | |
| €219,99 | Unieke Bricks | In stock |
Calibrated forecast based on historical pricing, seasonal patterns and retailer behavior. Tuned conservatively: rather cautious than optimistic.
Signal is mixed. Small movements are more likely than a big drop.
What to know about LEGO 42140 before you buy.
Kids aged 9+ can enjoy twice the fun with this LEGO® Technic™ App-Controlled Transformation Vehicle 42140 set. In a first for LEGO Technic sets, this vehicle toy flips over when it drives into a wall to reveal the second vehicle. No wall? No problem! Kids can turn the model over to switch vehicles. On one side is an aerodynamic tracked racer. On the other side is a tracked exploration vehicle. With suspension, a cockpit, and tracks on both vehicles, plus a truck bed on the exploration truck, there's lots for kids to discover. Take control with the app Kids will love using the CONTROL+ app to operate their vehicle. Using the app, they can steer the vehicle and complete fun challenges. The app experience changes for each vehicle and cleverly switches screens when the model flips. A great introduction to engineering LEGO Technic buildable models feature realistic movement and mechanisms, making them a top gift idea for any LEGO builder who is interested in engineering. See the model flip! – The vehicle flips over when it hits a wall or can be flipped by hand to reveal the brightly colored tracked racer on one side and an orange exploration truck on the other side Designed for kids aged 9+ – This app-controlled flip car toy features suspension, cockpits, and tracks on both vehicles, plus a truck bed on the exploration truck for kids to explore as they play Shock absorbers – 2 shock absorbers drive the 'pop-up' function that changes the shape of the vehicle when it flips over. The set also includes 2 large motors and 1 hub Learning through play – The world of LEGO® Technic™ sets offers advanced building toys for LEGO fans who are ready for a new building challenge Safety first – LEGO® Technic™ components are dropped, heated, crushed, twisted, and analyzed to make sure they meet strict global safety standards
All about this set
Background, build experience, collector context, and buying notes in one story.
Kids aged 9+ can enjoy twice the fun with this LEGO® Technic™ App-Controlled Transformation Vehicle 42140 set. In a first for LEGO Technic sets, this vehicle toy flips over when it drives into a wall to reveal the second vehicle. No wall? No problem! Kids can turn the model over to switch vehicles. On one side is an aerodynamic tracked racer. On the other side is a tracked exploration vehicle. With suspension, a cockpit, and tracks on both vehicles, plus a truck bed on the exploration truck, there's lots for kids to discover. Take control with the app Kids will love using the CONTROL+ app to operate their vehicle. Using the app, they can steer the vehicle and complete fun challenges. The app experience changes for each vehicle and cleverly switches screens when the model flips. A great introduction to engineering LEGO Technic buildable models feature realistic movement and mechanisms, making them a top gift idea for any LEGO builder who is interested in engineering. See the model flip! – The vehicle flips over when it hits a wall or can be flipped by hand to reveal the brightly colored tracked racer on one side and an orange exploration truck on the other side Designed for kids aged 9+ – This app-controlled flip car toy features suspension, cockpits, and tracks on both vehicles, plus a truck bed on the exploration truck for kids to explore as they play Shock absorbers – 2 shock absorbers drive the 'pop-up' function that changes the shape of the vehicle when it flips over. The set also includes 2 large motors and 1 hub Learning through play – The world of LEGO® Technic™ sets offers advanced building toys for LEGO fans who are ready for a new building challenge Safety first – LEGO® Technic™ components are dropped, heated, crushed, twisted, and analyzed to make sure they meet strict global safety standards
When current prices are available, buying context appears here.
Instructions & specifications
Dimensions, pieces, build steps, and the official PDF building instruction.
Parts inventory
Known set data around pieces and build context.
Technic Special
Technic Link Tread Wide with Two Pin Holes, Reinforced
Part ID 88323 · Black
Qty 96
Technic Disc 3 x 3
Part ID 2723 · Black
Qty 16
Rubber Technic Tread Attachment
Part ID 24375 · Black
Qty 2
Technic Pins
Technic Pin with Friction Ridges Lengthwise with No Center Slots
Part ID 61332 · Black
Qty 85
Technic Pin Long with Friction Ridges Lengthwise, 1 Center Slot
Part ID 42924 · Blue
Qty 55
Technic Axle Pin with Friction Ridges Lengthwise
Part ID 43093 · Blue
Qty 33
Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [2 Lateral Holes, Small Pin Hole]
Part ID 65304 · Orange
Qty 25
Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle
Part ID 11214 · Dark Bluish Gray
Qty 19
Technic Pin Long without Friction Ridges, with Anti-Roll Notch
Part ID 39888 · Tan
Qty 6
Technic Pin with Friction Ridges Lengthwise and Towball - Round Pin Hole
Part ID 66906 · Red
Qty 2
Technic Pin Long 3l, No Friction Ridges, with Stop and Hole
Part ID 77765 · Light Bluish Gray
Qty 2
Technic Pin without Friction Ridges Lengthwise
Part ID 3673 · Light Bluish Gray
Qty 1
Technic Pin 1/2
Part ID 4274 · Blue
Qty 1
Technic Pin 1/2
Part ID 4274 · Light Bluish Gray
Qty 1
Technic Connectors
Technic Pin Connector Round [Slotted]
Part ID 62462 · Light Bluish Gray
Qty 20
Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise [Square Holes]
Part ID 65487 · Blue
Qty 7
Technic Axle and Pin Connector Perpendicular
Part ID 6536 · Dark Bluish Gray
Qty 6
Technic Pin Connector Perpendicular 2 x 4 Bent - Beam with 90 Hole Ø 4.8
Part ID 11455 · Black
Qty 4
Large Figure Weapon Lightsaber Hilt with Axle Hole and Two Bar Holders
Part ID 24122 · Dark Bluish Gray
Qty 4
Technic Pin Connector Round [Slotted]
Part ID 62462 · Blue
Qty 4
Technic Axle and Pin Connector Angled #1
Part ID 32013 · Blue
Qty 3
Technic Axle and Pin Connector Angled #3 - 157.5°
Part ID 32016 · White
Qty 2
Technic Axle and Pin Connector Angled #3 - 157.5°
Part ID 32016 · Dark Bluish Gray
Qty 2
Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole
Part ID 32184 · Light Bluish Gray
Qty 2
Technic Axle and Pin Connector Perpendicular Double
Part ID 32291 · Black
Qty 2
Technic Pin Connector Round [Slotted]
Part ID 62462 · White
Qty 2
Technic Pin Connector Round [Slotted]
Part ID 62462 · Orange
Qty 2
Technic Axle and Pin Connector Perpendicular
Part ID 6536 · White
Qty 2
Technic Pin Connector Round 1L [Beam]
Part ID 18654 · Black
Qty 1
Technic Axle and Pin Connector Angled #1
Part ID 32013 · White
Qty 1
Technic Driving Ring Connector Smooth [2 rounded and 2 flat side walls]
Part ID 42195 · Black
Qty 1
Technic Axle and Pin Connector Perpendicular Triple
Part ID 63869 · Light Bluish Gray
Qty 1
Technic Axles
Technic Axle 5 with Stop
Part ID 15462 · Reddish Brown
Qty 16
Technic Axle 3 with Stop
Part ID 24316 · Reddish Brown
Qty 10
Technic Axle 2 Notched
Part ID 32062 · Red
Qty 3
Technic Axle 3
Part ID 4519 · Light Bluish Gray
Qty 3
Technic Axle 5.5 with Stop [Rounded Short End]
Part ID 59426 · Dark Bluish Gray
Qty 3
Technic Axle 5
Part ID 32073 · Light Bluish Gray
Qty 2
Technic Axle 4
Part ID 3705 · Red
Qty 2
Technic Axle 4 with Centre Stop
Part ID 99008 · Tan
Qty 2
Technic Beams
Technic Beam 1 x 5 Thin
Part ID 32017 · Dark Bluish Gray
Qty 16
Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole
Part ID 60483 · Black
Qty 11
Technic Beam 2 x 4 L-Shape Thick
Part ID 32140 · Blue
Qty 6
Technic Beam 3 x 5 L-Shape Thick
Part ID 32526 · Blue
Qty 6
Technic Beam 1 x 7 Thick
Part ID 32524 · Dark Bluish Gray
Qty 5
Technic Beam 1 x 11 Thick
Part ID 32525 · Dark Bluish Gray
Qty 5
Technic Beam 1 x 5 Thick
Part ID 32316 · Black
Qty 4
Technic Beam 1 x 5 Thick
Part ID 32316 · Blue
Qty 4
Technic Beam 1 x 11 Thick
Part ID 32525 · Light Bluish Gray
Qty 4
Technic Beam 3 x 5 L-Shape Thick
Part ID 32526 · Orange
Qty 4
Technic Beam 1 x 15 Thick with Alternating Holes
Part ID 71710 · Black
Qty 4
Technic Beam 1 x 13 Thick
Part ID 41239 · Light Bluish Gray
Qty 3
Technic Beam 2 x 4 L-Shape Thick
Part ID 32140 · Black
Qty 2
Technic Beam 1 x 5 Thick
Part ID 32316 · Orange
Qty 2
Technic Beam 1 x 3 Thick
Part ID 32523 · Black
Qty 2
Technic Beam 1 x 7 Thick
Part ID 32524 · Orange
Qty 2
Technic Beam 1 x 7 Thick
Part ID 32524 · Vibrant Yellow
Qty 2
Technic Beam 1 x 11 Thick
Part ID 32525 · Black
Qty 2
Technic Beam 1 x 9 Thick
Part ID 40490 · Orange
Qty 2
Technic Beam 1 x 9 Thick
Part ID 40490 · White
Qty 2
Technic Beam 1 x 13 Thick
Part ID 41239 · Orange
Qty 2
Technic Beam 1 x 2 Thick
Part ID 43857 · Blue
Qty 2
Technic Beam 3 x 3 T-Shape Thick
Part ID 60484 · Black
Qty 2
Technic Beam 3 x 3 T-Shape Thick
Part ID 60484 · Light Bluish Gray
Qty 2
Technic Beam 1 x 11 Thick with Alternating Holes
Part ID 73507 · Light Bluish Gray
Qty 2
Technic Beam 1 x 11 Thick with Alternating Holes
Part ID 73507 · Black
Qty 2
Technic Beam 1 x 3 Thick
Part ID 32523 · Blue
Qty 1
Technic Connector Beam 3 x 3
Part ID 39793 · Dark Turquoise
Qty 1
Technic Connector Beam 3 x 3
Part ID 39793 · Magenta
Qty 1
Wheels and Tyres
Technic Wedge Belt Wheel [aka Pulley]
Part ID 4185 · Dark Bluish Gray
Qty 16
Wheel 11 x 8 with Center Groove
Part ID 42610 · Black
Qty 3
Tyre 14 x 6 Solid Smooth
Part ID 50951 · Black
Qty 3
Technic Bushes
Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced
Part ID 32123b · Yellow
Qty 3
Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced
Part ID 32123b · Light Bluish Gray
Qty 1
Electronics
Wire Clip with Axle Hole
Part ID 49283 · Magenta
Qty 3
Motor, Large, Powered Up
Part ID 22169 · Dark Bluish Gray
Qty 2
Wire Clip with Axle Hole
Part ID 49283 · Green
Qty 1
Hub, Powered Up 4-Port (Technic Control+) - Screw Opening
Part ID 85824 · Light Bluish Gray
Qty 1
Technic Panels
Technic Panel Fairing #21 5L Small Smooth, Side B
Part ID 11946 · Blue
Qty 2
Technic Panel Fairing #22 5L Small Smooth, Side A
Part ID 11947 · Blue
Qty 2
Technic Panel Fairing 2 x 3 x 1
Part ID 71682 · Blue
Qty 2
Technic Panel Fairing #21 5L Small Smooth, Side B
Part ID 11946 · White
Qty 1
Technic Panel Fairing #22 5L Small Smooth, Side A
Part ID 11947 · White
Qty 1
Technic Panel Curved and Bent 6 x 3
Part ID 24116 · Dark Bluish Gray
Qty 1
Technic Panel Curved and Bent 6 x 3
Part ID 24116 · Blue
Qty 1
Technic Panel Fairing # 4 Small Smooth Long, Side B
Part ID 64391 · Black
Qty 1
Technic Panel Fairing #6 Long Smooth, Side B
Part ID 64393 · Blue
Qty 1
Technic Panel Fairing #6 Long Smooth, Side B
Part ID 64393 · Black
Qty 1
Technic Panel Fairing #5 Long Smooth, Side A
Part ID 64681 · Black
Qty 1
Technic Panel Fairing #5 Long Smooth, Side A
Part ID 64681 · Blue
Qty 1
Technic Panel Fairing # 3 Small Smooth Long, Side A
Part ID 64683 · Black
Qty 1
Technic Panel 3 x 7 x 1
Part ID 71709 · Orange
Qty 1
Technic Panel Fairing 2 x 1 x 1
Part ID 89679 · Blue
Qty 1
Tubes and Hoses
Minifig Accessories
Equipment Paint Roller Brush Handle Smooth Handle
Part ID 34076 · Black
Qty 2
Technic Gears
Technic Tread Sprocket Wheel Large Diameter 7 Holes, 14 Tooth
Part ID 42529 · Dark Bluish Gray
Qty 2
Technic Tread Sprocket Wheel Large 10 Tooth
Part ID 57519 · Black
Qty 2
Technic Gear 12 Tooth with Axle Hole
Part ID 69778 · Blue
Qty 2
Technic Gear 20 Tooth with Axle Hole [+ Opening]
Part ID 69779 · Dark Azure
Qty 2
Bars, Ladders and Fences
Bar 6L with Stop Ring
Part ID 63965 · Dark Bluish Gray
Qty 2
Technic Steering, Suspension and Engine
Technic Shock Absorber 6.5L with Soft Spring, Standard Coil [Complete Assembly]
Part ID 76138 · Light Bluish Gray
Qty 2
Technic Steering Wheel Pilot's Yoke [Closed Top]
Part ID 49151 · Black
Qty 1
Technic Beams Special
Technic Beam Frame 3 x 19 with 2 Center Cross Beams, 3 Openings Thick
Part ID 67491 · Black
Qty 1
Stickers
String, Bands and Reels
Rubber Belt Small [15mm ID] [Round Cross Section]
Part ID 85543 · White
Qty 1
Tiles Round and Curved
Tile Round 1 x 1
Part ID 98138 · Trans-Clear
Qty 1
Retailer reviews
Summarized retailer review data when available.
Very nice and my son really enjoyed it.
This model looks good, can climb well, and offers excellent value for money (for the recommended price, but especially if you can get it cheaper via Bol.com). The fact that it can turn around was quite nostalgic for me; I remember having reversible RC cars when I was a kid. This is a great evolution of that, because it's bigger, made of Lego, and you build it yourself, and it just looks better and more "refined". It's a bit slower than the previous Lego RC cars with caterpillar tracks, but it's still definitely fast, and the others can't climb as well. Overall, I think it's a fantastic model, and in terms of price/quality, I think it's the best Lego RC currently available. It's great for kids, but also for adult Lego fans.
Fantastic to build and play with.
A fun car to build and then enjoy for a long time because it can be controlled remotely.
Very easy to assemble and fun to operate with an app on your smartphone.
My 10-year-old son received this as a birthday gift and he built it completely himself in about 4 hours. I'm especially happy that it can be controlled with an app, otherwise it would just be an expensive box for a few hours of fun.
All retailer prices
Current prices, stock and discounts per retailer.
Price context
Lowest, highest and average price for this set.
This context is based on 78 price points across 0 retailers. The chart on the page remains the full interactive source.
Price forecast
Conservative baseline for the next period.
The signal is mixed. Small movements are more likely than a large drop.
FAQ & set details
Pieces, year, RRP and retailer coverage.
Quick answers about price, stock and set data.