Technic

Yamaha MT-10 SP

The first LEGO Yamaha, and it earns the honor with a real working gearbox.

Brick Rated Score

4.2/5

Set 42159 · 2023

Pieces1,478

Minifigsn/a

Year2023

Set number42159

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The verdict

This is the set where the drivetrain does the talking.

You get a 3-speed gearbox that actually clicks between gears, a chain final drive, and suspension front and back that genuinely soaks up a push. It won me over slowly, because from the outside it's a handsome bike, but the joy is under the bodywork. If you love mechanisms more than shelf presence, this is your one.

Best for: Technic builders who want a working gearbox they can shift by hand

The full review

What it is

The LEGO® Technic Yamaha MT-10 SP is a big deal for a quiet reason. It's the first Yamaha LEGO has ever made, and rather than shout about it, the set lets the engineering carry the whole thing. At 1:5 scale with 1,478 pieces, it sits next to the earlier BMW M 1000 RR as the second full-size Technic motorcycle, and honestly the mechanisms here feel like the more grown-up version. You build a four-cylinder engine with pistons that pump as you roll it, a 3-speed gearbox you can shift with a lever, a proper chain final drive, and suspension that squashes at both ends. Roll it across a table and the whole drivetrain comes alive, and that's the part that stuck with me.

The catch

Now for the honest bits, because there are a few. The price is the big one. Around 240 dollars for under 1,500 pieces works out to roughly 16 cents a part, which is on the expensive side even for Technic, and the two enormous wheels and tyres eat a chunk of that count without adding much building. The good news is these sets almost always drop 30 percent or so at Amazon and Target within a few months, so patience is rewarded. The other quibble is the looks. From across the room it reads as a sharp naked bike, but lean in and the fuel tank and side panels don't quite trace the real MT-10's aggressive lines, and a couple of small plates on the display stand don't match their neighbours. It also skips the little stats plaque the BMW came with, which felt like a missed trick to me.

Who it's for

So who's this really for. If you're the sort of builder who grins when a gearbox clicks into second and you love studying how LEGO recreates a real drivetrain, you'll get a lot out of this one, and the new gearbox parts alone might sell you. If you mostly want a showpiece that looks flawless on the shelf and you're counting pieces per dollar, this isn't the strongest value in the lineup, and you might be happier waiting for a discount or looking at a car set instead. For me it lands as an excellent mechanical build with a couple of cosmetic caveats, the kind of set that rewards you for actually playing with it rather than just parking it.

The parts story

What the build is actually like, and the pieces worth knowing about.

The build is modular and paced kindly, so it rarely gets frustrating even when the mechanism is fiddly. You start with the heart of it, the four-cylinder engine and the gearbox, and that middle section is where the real concentration goes. Building a working 3-speed transmission with a shift drum, shift fork, gear shift ring and ratchet drum is proper Technic, and when it finally clicks between gears for the first time it's a lovely payoff. From there you hang the frame, the front forks and rear swingarm with their suspension, thread the chain drive, and finish by clipping on the bodywork and mounting those two big wheels. It's challenging in the guts and relaxing at the edges, which is a nice rhythm.

For parts people, this is the interesting one. The set debuts a redesigned gearbox family: new driving rings that are shorter at two modules long with twice the splines, which means far less slop when you shift, plus a new red 24-tooth clutch gear that makes compact gearboxes easier to design, and an oddball stepper gear that doesn't fit any existing family. If you build your own Technic transmissions, these are the kind of pieces you'll be raiding this set for. Add the two large motorcycle tyres and the restrained sticker sheet, and the value story is less about raw piece count and more about the mechanical parts you're getting.

Fun facts

01This is the very first Yamaha model LEGO has ever produced, making 42159 a genuine first for the Technic line.
02It's only the second full-size 1:5 scale Technic motorcycle, following the 42130 BMW M 1000 RR, and it packs a shiftable 3-speed gearbox where a real MT-10 SP has a six-speed.
03The set introduced brand new gearbox elements, including redesigned driving rings with double the splines for less backlash and a red 24-tooth clutch gear that builders quickly adopted for their own designs.
04LEGO kept the stickers to a minimum here, just the Yamaha wordmark in a couple of places and the model badge on the tank, a deliberate step up from the sticker-heavy BMW that came before it.