As a former 1964 Lambretta owner with a tweaked engine (the scooter, not the owner!), who had mates with RD250s and 350s, I am gobsmacked with how well he managed to integrate the RD350 gubbins into the limited space available. It looks like a factory special. I would LOVE to ride it!

Had a chat with the owner earlier on in the year. Nice bloke and took the time to tell me how much work ha had done. A stunning piece of kit.

Wanted one of these since i first saw Allan Rossa on his circa 1989. I still want one may be more so now having seen this. The mans a genius...

Absolute beauty! There have been loads of similar conversions over the years, but this is up there with the best of them in my opinion. Great engineering.

Lovely 😊 Back in the day I bought an old li 150 for a fiver...Good fun. Then when i turned 16 I bought a new fs1e (1973) We used to go to Rykers bar back then. Good old days 😃😃

That’s superb - Love hearing about peoples custom builds. What a fantastic project 👌

Absolutely beautiful !! Should be called a Yambretta !!

The guy who built this does not know how amazing he is. What a fkin mad lad.

What a bike, the detail, The packaging, stowage, The execution is flawless. A lovely toy. Nice1 👍

I am not a fan of scooters but that is something special. The lev el of detail and the quality of finish is sublime Kudos to that lad.

I clicked on this because I owned an RD 350 way back in my youth of the 1980s. I did a number of upgrades but it was no where close to the beauty and quality on your build, You sir have built a work of Art!!

The water buffalo next to it is driving me crazy melancholic, my first super bike (1974 750 GT two cycle)

This RD350 Bike is purely Legendary Bike. Once during my time I used I want to have again.

Great build - well thought out. There are quite a few RD engined Lambrettas out there - 250/500 Gammas too. Scooter technology has come on leaps and bounds over the last few years with Casa Lambretta(and others) offering kits to take standard engines from 40 to 80 bhp depending on requirements and reliability required. Twin disc kits and other reinforced parts - engine casings/tyres/shocks/anti-dives etc available to suit. There's some mental kit for Vespas available too.

This bike is ridiculous,insane,absoluto crazy... I WANT ONEE🤣🤣🤘🤘🤘!!!a hug from Spain!!!

This is tickling every single last one of my happy glands , I had a yammy fizzy in speeddblock yellow in 1977 and transitioned to lammy's in 1979 , ,, the work here is amazing 👏

When I was 16, I owned a 1969 RD 350. Owned it for 3 years. Never had a license.

Your scooter is the thing of dreams for some people....superb ...very well done ...

what a build...from a former rz and banshee owner that thing is scary deceiving ...respect on so many levels

What a brilliant bit of engineering 👏👏 i don’t think the tonup boys will be catching that 😂

AHHR mate you are in a different league! Absolutely fabulous 🤩 please share this creation with Yamaha now! Love it, it's top of the hit parade! Want one.

We've all said it, all done it (in our dreams) but Kevin actually did it. Absolutely beautiful - how many more are you doing??

He's a genius!!! Big engine in a scooter legend. I've had both. Thanks for sharing it. Congratulations.

The motor is from a RD350LC (Liquid Cooled), my friend had one and my other friend had the air cooled RD350, both were beating the crap out of my modded RD400. Awesome build. Take care.

Ah the smell of two stroke smoke, blue smoke curling behind the bike, reminds me of my glorious (not) misspent youth. Coaxing my BSA D14/4 Bantam to start. The sound of the twin expansion exhaust pipes crackling away, music to my ears. Great bike mate

It's incredible, almost feel like the scooter was coming straight from factory.

Absolutely fantastic build. I had a non YPVS 350LC and loved it. I also have an affection for the curvy lines and status of the scooter. Your build offers the best of both and is a thing of beauty 💛🖤

Wow! Stunning piece of bike art. Swing arm is just amazing.

Can it do a Wheely? You bet it could! Ha ha ha. Incredible build! Everyone is going to want one like me! I love it! Great job!

Very clean build. Now that's a true sleeper.

I was pals with the lad next door but one back in 1970. He was 2 years older and had a succession of scooters and bikes. We went to Oliver's Mount meetings on Scarborough a couple of times and over the Yorkshire moors into the dales. It started with a Vespa and the a GP 200 Lamb to an AJS 350. I still ride a scooter every day but miss my 600F.

This build is absolutely mental, your a genius.

Sleeper Scoota. Inspirational build, love the concept and well thought out.

this is fantastic ,im not a scooter fan but this is an awesome build !!!!!!!!!!! anything thats a true custom build deserves respect love it !!!!!!!!!!!

without a doubt one of the coolest customs I have ever seen. Thank you

That was truly outstanding! The meticulously precise attention to detail and exquisite craftsmanship made this Yambretta 350 YPVS an absolute joy to see! Whatever the eye settled on, beautiful detail abounded! I could happily spend hours closely inspecting every detail and appreciate the cleverness of the builder's decisions. This is a very special, special...

I'm in love with that "Lambreha" (that's the way they pronounce it), if produced would sell by the thousands!

That thing is mental. Beautifully done.

Love bikes and scooters. Two wheels together. 👍🏻

My two favourite bikes growing up in the 80s I’ve had both but never put ‘em together, absolutely gorgeous 👍🏻

It's like having a pizza sliced with a samurai sword... Very well done Sir!

He said it...YAMbretta...excellent work...probably the best custom mod I've ever seen in 40 odd years of biking...perfect engine for it...too much power really...but common sense on the throttle...I guess a 100MPH would be a bit frightening with Lambretta handling...amazing what some people can do with their brains and hands...I'm in awe

What a job!! Greetings from Italy

I am not a religious man but, Oh my God that is cool. Anything with Yamaha speedblocks looks fantastic but that is next level.Love your R1 as well but the scooter is just beautiful

Amazing!!!! Excellent work done by the owner of the Lambretta 350. I have an RD350LC here in Brazil and I am stunned by what he managed to do. Congratulations on showing us.

The man definitely has talent to build that in he’s shed.. I was with Sanj a couple of weeks ago when we saw this scooter 🛵. Having seen it in the flesh it’s truly amazing 🤩.

Don't ride bikes, but I want that little yellow beauty. Beautifully engineered👍

I am not a scooter fan at all but that is one of the nicest conversions I’ve ever seen .. 👍

Well done Kevin has to be up there with the best .hours of work certainly worth it once again well done

OMG that guy is so clever. These sort of people are of a certain breed & i think they are born clever.

Box hill,used to go there regular in the 80's,great place,last time i went was 2007 on my GSX1400,then moved to Scotland,it was the place to go in the 80,s ,no coppers spoiling the fun,remember wheelies from the roundabout to the bend for some guys,great fun & some regular special kit in the car park, moto martin gixers,cbx1000's ,good times. That scooter is such a great engineering job,well done sir.

This is been done at least twice to my mind.. and this is a super fun project. Back in the day, as a Vespa and Lambretta scooter rat.. I had an old scooter magazine that had instructions on how to do this exact build. By all accounts super fun and would beat many bikes light to light.. leaving the lagging riders of dropping their jaw.

O'h wow .... as an 80's Rockabilly growing up, i went to College as an apprentice Carpenter, and on my course were a few scooter Boys .... great bunch of Lads ..Nick Trundle, Paul Taylor , Ian Sterling ....they all rode Scooters , Not my idea of Transport but i did appreciate the style ... and actually quite liked the Lambretta styling .....i ended up on the back of one,. with one of the Lads..which i think was Nick....scared the crap out of me , pulling the odd Wheelie ... i held on for dear life ... i also Remember the RD's as well ........so what a collaboration of the two .....very impressive .

It's the sort of 'sleeper' vehicle someone like Paul Newman would have loved. He used to put huge power into tiny vehicles like old VW beetles when he was a young actor and blow the doors off people to embarrass them in their hot rods. "We just got beat by a VW bug" This is a factory-quality build and you could sell the plans and kits and vehicles. Due to the age of the motor, they were legal in the U.S. in the mid-1980s, it might be able to be street-legal even here in the states.

Helluva engineering project with great craftsmanship!

Genius british engineering and a work of art 👌

What a terrifying piece of kit.

Its just a piece of marvelous engineering very well done.

What a freakin amazing bit of engineering. Beast of a motor, the 350 LC. The RD 350 was air-cooled.

The ingenuity of people amazes me.

Wow Stunning Build, attention to detail is massive, Kelvin is a true craftsman and Engineer. 👍

Ive seen a few beautiful creations in my time but a Kenny roberts lambretta takes some beating! Love it!

he's liveing to ride..rideing to live.. bust of luck to him.. great set of wheels he's made....

That is a beautifully done build. Looks like it was meant to be. Lots of non-Lambretta RZ350 and RZV500 stuff on my channel. Thanks for posting this one.

i can see he really loves this type of work

There is not a single thing on this build that I don't like. Is this the only "Yambretta" in existance I wonder? Top work Kelvin perfectly executed. Great video thanks for this👍

Insane, that's one way of saying what a clever sleeper build, thanks for showing. I had a RG250 Gamma in the day, love those twin 2strokes!

...what can I say... AMAZING!!!!!!! THANKS A LOT TO MAKE MY LIVE HAPPIER!! I'll share the video. It's a must to see it. Great job!!

Greatest build ever.

That's the craziest vespa I have ever seen.

Stunning, like a young Burt Reynolds.

I don't know anything about motorcycles but I could see some top class home brew engineering there. Well done.

We have here a Japanese-Italian scooter with an English rider. The result is equal to a Happy Adventurer. Ride safe Mate.👍

Missed opportunity, calling it the Yambretta. Beautiful work mate.

That must be a death trap. Brilliant!!

Geni-us. Great mechanics in a beautiful package. Love the retro Yamaha theme. What I would give to have the skills to create such a complete project. You can spend a lot of time at bike shows and this is one that would make you look two twice and then still keep looking. Very , very impressive.

I have a very critical eye for custom bikes and cars and normally like very few, or find some spoiled by a small detail. This however I think is beautiful. Well done. Excellent

Great job Kelvin! I'm not into scooters but i would love this in my garage, the inginuity and quality of workmanship is amazing 👍

Wow! What an engineering job! Hats off to you!

This build looks absolutely brilliant! Keep doing what you do!👍

Awesome!!!!!! I had a hopped, up Li150 and more than a few RD350/400's. This is a dream!

Clever stuff 😉. That was a nice GT750M that came into shot too.

That is a serious bit of kit. Congratulations sir.

That's a unique custom built bike but the exhausts somehow sounds like the original lambretta 😁

The utter insanity of this boggles my mind. I used to have an rd350lc and it was scarily quick.

totally a brilliant art of engineering.

That guys Yambretta was friken awesome. Very well done sir. Real clean I like it

Beautiful creation by Kelvin, fit and finish is amazing. 👍

What a stunner! I bet riding that thing with 60+hp is crazy fun.

Love this! Great work Kelvin, it’s like looking at a dream bike from Scootering Mag back in the 80’s 😍💭

Not only an outrageous idea. This is all so well executed. It looks like the bike actually was born with that engine. Everything flows, and the colours are gorgeous. I love this bike. I wouldn't want to ride it, though 😎🥰

Absolutely superb engineering. well done that man. would bloomin love one!

Man that gentleman is clever’ All those bikes look awesome but this is a work of art.

how scooters should have been, very clever piece of engineering, all for £5k - unbelievable- top marks that man.

This ride is so beautifully made. 👏🏻👏🏻👏🏻👏🏻👏🏻

very clever utterly brilliant build i love it. looks great hes fitted it in so well

What an amazing build, very impressive .

Great vid guys, thank you, there are tonnes of bikes in England, love that RD 350 Lambaretta , such a classy build 🙂

When he put that painted side panel down on the floor I was like noooooooooo. Could see he didn't want to. Great build 👍

I'm dribbling, awesome, beautiful, wanted 1 for years, had many Lammy's and RD's, never the Hybrid from Heaven. ❤❤❤❤❤👍, more like 58bhp max.