check Returns up to 14 days
check Pay in 30 days
check Wholesale area - B2B

Motorcycle engine - parts
Barton Flex 50 4T

Manufacturer

Price

    GBP

Sort

Found: 70
Engine 110 cc complete change from 50 cc to 110 cc - 80642 Engine 110 cc complete change from 50 cc to 110 cc - 80642
4T FMB clutch cover gasket - 216692
Valve set 139FMB 50cm3 - 121312 Valve set 139FMB 50cm3 - 121312

£3.49

delivery 0 £

Valve set 139FMB 50cm3 - 121312

stars    (2)
Timing chain sprocket kpl - 99216

£4.37

delivery 0 £

Timing chain sprocket kpl - 99216

stars    (1)
Timing repair kit 139FMB - 90931

£7.15

delivery 0 £

Timing repair kit 139FMB - 90931

stars    (14)
Engine 139FMB 147FMB 4T 72cc - 83098 Engine 139FMB 147FMB 4T 72cc - 83098

£238.02

delivery 0 £

Engine 139FMB 147FMB 4T 72cc - 83098

stars    (4)
Bowl with thujia and clutch spring - 80984 Bowl with thujia and clutch spring - 80984

£1.79

delivery 0 £

Bowl with thujia and clutch spring - 80984

stars    (7)
Cylinder + head 72 cm3 kpl 4T - 76903 Cylinder + head 72 cm3 kpl 4T - 76903

£53.40

delivery 0 £

Cylinder + head 72 cm3 kpl 4T - 76903

stars    (103)
King 139 147 FMB clutch control cover - 75565 King 139 147 FMB clutch control cover - 75565
4T 139FMB head bolts kpl - 73835

£2.78

delivery 0 £

4T 139FMB head bolts kpl - 73835

stars    (3)
4T timing chain guide roller bolt 139FMB - 73831
Starter shaft guide bolt 4T 139FMB - 73827
4T timing tensioner arm bolt 139FMB - 73828 4T timing tensioner arm bolt 139FMB - 73828

£1.39

delivery 0 £

4T timing tensioner arm bolt 139FMB - 73828

stars    (1)
4T 139FMB clutch pressure plate bolts - 73822 4T 139FMB clutch pressure plate bolts - 73822
Cylinder and head mounting side bolt 139FMB 4T - 73818 Cylinder and head mounting side bolt 139FMB 4T - 73818
Starter chain slide set 139FMB 4T - 73817 Starter chain slide set 139FMB 4T - 73817

£2.58

delivery 0 £

Starter chain slide set 139FMB 4T - 73817

stars    (8)
Clutch basket nut and washer 4T 139FMB kpl - 73794 Clutch basket nut and washer 4T 139FMB kpl - 73794
4T 139FMB gear shift sensor - 63893 4T 139FMB gear shift sensor - 63893

£2.58

delivery 0 £

4T 139FMB gear shift sensor - 63893

stars    (9)
HK 13.5 4T gearbox needle bearing - 59047 HK 13.5 4T gearbox needle bearing - 59047

£1.86

delivery 0 £

HK 13.5 4T gearbox needle bearing - 59047

stars    (1)
Valve lever 139FMB 4T kpl - 59035 Valve lever 139FMB 4T kpl - 59035

£3.46

delivery 0 £

Valve lever 139FMB 4T kpl - 59035

stars    (5)
4T clutch installation kit 139FMB - 59025

£5.13

delivery 0 £

4T clutch installation kit 139FMB - 59025

stars    (10)
50 72 110 ccm 139FMB 4T camshaft - 59012 50 72 110 ccm 139FMB 4T camshaft - 59012

£7.33

delivery 0 £

50 72 110 ccm 139FMB 4T camshaft - 59012

stars    (2)
Free starter wheel + starter gear 4T 139FMB - 59015 Free starter wheel + starter gear 4T 139FMB - 59015
Cylinder pin kpl 4pcs. 4T - 58986 Cylinder pin kpl 4pcs. 4T - 58986

£4.37

delivery 0 £

Cylinder pin kpl 4pcs. 4T - 58986

stars    (9)
Clutch without pressure 4T 139FMB - 58980 Clutch without pressure 4T 139FMB - 58980

£15.46

delivery 0 £

Clutch without pressure 4T 139FMB - 58980

stars    (8)
Valve springs with bowls 4T 139FMB kpl - 58979
Oil pump drive wheel 139FMB - 58910 Oil pump drive wheel 139FMB - 58910

£2.18

delivery 0 £

Oil pump drive wheel 139FMB - 58910

stars    (2)
Seal 18.9x30x5mm Peugeot SYM 50 4T - 44377
-5%
Athena sealer 11.6x24x10 mm - M730900244500

£2.11

Lowest price from 30 days before discount:  £2.22

delivery 0 £

Athena sealer 11.6x24x10 mm - M730900244500

-5%
Athena sealer 10x21x4 mm - M730000287000

£2.60

Lowest price from 30 days before discount:  £2.74

delivery 0 £

Athena sealer 10x21x4 mm - M730000287000

Valves 70cm3 147FMB - ZAWMR0704TPOMPYAM000FI1 Valves 70cm3 147FMB - ZAWMR0704TPOMPYAM000FI1
Valves 110cc BTS engine

£2.98

delivery 0 £

Valves 110cc BTS engine

Products reviews

2020-09-07, 08:47

poland

Krystian

Hello I own a junak 901 with a capacity of 50/70cmm from new purchased in 2011 to date Junak has traveled nearly 17 thousand km What I really like about the moped is the simplicity of the whole motorcycle, there is nothing complicated in the repair process, simple design, availability of parts is huge and easy to obtain. This is the second repair of the engine since new due to the fact that I ride a lot, parts wear out, now I have overhauled the engine again and the motor fires up from a shot, the larger gear ratio gears allowed to run longer in gear and achieve better results speed in km ends as soon as the pointer passes 80 I like to test various products with them especially carburetors and filters to get better results in combustion and on power of course it is possible but several carburetors of different manufacturers of fuel nozzles you need to have to get such an effect . Parts from gmoto I buy because it is a proven seller of parts and really parts are of very good quality than on other sites only now what I bought starter chain sliders significantly differ from the original I would say more that the quality and material are other weaker but for everything there is a way site I recommend to all lovers of unicycles

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2017-08-19, 11:15

poland

Kazimierz

I put a 110 engine into a 2013 Barton Fighter 50 eco. The engine started and runs well.Not matching are :front sprocket(the 14-tooth one seems to have a different pitch because the chain jumps) , gear shift lever,foot starter and sprocket cover ( you have to cut it to fit ) . You also need to replace the air filter in addition. Another thing you need to get used to is the gear layout - neutral at the highest and the other gears down ( N-1-2-3-4) .You also need to put an additional line to the suction because in the previous carburetor there was a lever control directly on the carburetor.And besides, there is power :) . Greetings.

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2020-05-03, 14:00

poland

Freeb

The kit itself is ok. I will be installing it soon. The kit is complete and everything seems to be ok. I only have a reservation about the packaging of the goods. The head and cylinder came in one big box. It looks like the head must have been badly packed because it punctured the box and has small scratches at the exhaust mounting entrance.

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
Gmoto's reply We sincerely apologize for the situation. If you receive damaged goods, please contact us immediately, these types of cases are given priority and the damaged item is replaced. Most likely, the shipment was damaged in transit.
check

Reliable opinion

2018-07-27, 08:35

poland

lidia

I have a kinroad mini chopper the engine was falling apart and I bought a new engine at Gmoto where it was the best deal.I disassembled the old one and put the new one on.Everything fit perfectly,in my opinion any one could do the same as I did without any help.Gmoto is the best online store today I order and tomorrow it is already at home.Bomb.

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2022-01-15, 08:58

poland

Dawid

Hello I have a moped barton sprint 72cc,I am very satisfied with the quality of your products the installation of parts is without complications and fields am your site to anyone who wants to order parts for mopeds. I was only once not satisfied as the parts were not complete but after writing an email the missing parts were sent.

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2019-02-08, 06:40

poland

Dawid

So I ordered a 110cc engine, 4-speed motor works well in terms of power and you can also ride it nicely, the engine works beautifully at speed, the engine fits perfectly to zipp xrace. If you think to enlarge the engine (replacement )this is the engine I recommend greetings .

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2018-06-02, 20:32

poland

krzysztof

I recommend gmoto sklem for its quick realization of the purchase and delivery of goods by couriers appointed on this website, best regards to the entire team of the store so keep it up and I will continue to use your services.

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2024-11-08, 06:27

poland

jerome

Moteur très bien emballé à réception, complet avec ses accessoire , mise en route facile et opérationnel immédiatement. Testé à vide avant montage sur la moto , pète au quart de tour ! Je recommande et le produit et le site de vente extra !

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2021-01-25, 08:06

poland

Daniel

It fits P&P to a 139FMB engine from 20 years ago, so there is nothing to complain about. However, the quality could be a little better, I would be willing to pay extra to get a better made product, other than that, you can take, put on and lapped.

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2022-06-01, 10:05

poland

Lukasz

Motor super, quality of workmanship also very good. Fits like a glove in place of the old motor. Speed of shipping surprising. Already on the second day the package was with me. I recommend this store.

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2024-10-10, 15:54

poland

Thomas

Motoren er rigtig fin. Jeg har ikke haft den igang endnu. Men den er monteret og klar. Der var en lille flænge i skjoldet ved kæden. Men det fandt vi hurtigt en løsning på

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2018-10-04, 16:56

poland

Krystian

Hello.The quality of this product is very good. It is well made there are no objections to these parts.I sincerely recommend and greet .

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2018-02-07, 15:53

poland

Szymon

Romet ogar 202 valves fit perfect fit after reaching them nothing leaks burns on touch 3 sec starter and burns bdb recommend in 100% :)

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2020-09-07, 08:50

poland

Krystian

The screw does not differ from the original and was sold with the washer included where else you have to buy the washer separately I recommend the product

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2024-09-19, 18:52

poland

oni bikers

moteur incroyable je recommande tourne tres bien ma moto demarre au quart de tours et avec la ligne akra c'est devenu un monstre

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2019-02-24, 18:28

poland

Robert

I have a Kingway Street 50cc motorcycle Very good kit for not much money. I personally honestly recommend it. Rides like crazy

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2019-02-03, 18:55

poland

wiktor

Hello, I recommend buying parts from here, they are very good, I had no problem fitting them. Zumico GR200 72ccm

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2024-12-11, 12:42

poland

Durand

Parfait moteur adaptée sans modification, superbe finition et marche très bien, livraison rapide et bien protéger

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2021-11-10, 08:48

poland

Mariusz

Hello everyone. I own a 2014 junak 901 with a capacity of 50cm. Note very important! I am not a mechanic!

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2024-07-30, 08:42

poland

Grzegorz

No possibility of replacing the timing chain for the 139FMB engine which turned out to be too long . Not recommended.

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
Gmoto's reply If the products do not fit your motorcycle, you can easily return them by filling out the claim form on the website.
check

Reliable opinion

2019-05-20, 10:41

poland

Michał

Fits a Romet ogar 125 motorcycle and fits 1:1 in the original. After inserting the levers my romet has a lot of power

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2016-07-26, 18:44

poland

Piotr

I ordered this set for zipp shocka 50cc with the idea that the power of the moped will increase but when I ordered it I did not believe that this set will add such a kick :) Now I do not recognize the moped and the power is already sufficient for me .From the hand on my heart I recommend shopping at this store because the products are very durable and made of very good materials so the quality is amazing, I happen to be satisfied with purchases here because what I order it comes and sometimes the store throws in a freebie which I like very much.So once again I recommend people buy here and not on some other sites such as allegro because there you can get equipment of Chinese manufacture which results in a short eternity of goods I not once or twice ordered here and always satisfied and more than once I will shop here :)

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2020-06-22, 13:58

poland

Piotr

Zipp Pro 50 2012. The purchased kit significantly increased the power of the engine. You can feel a big difference in a few years old Zipp with 50siatka. I have my pz19 gasser, at Gmoto I bought an 85 nozzle and zembatke 16 for the front. It's in the running in so I haven't checked the max speed, but already on low I can feel the torque and power, and uphill it stopped slowing down in 4th gear ! Moped turned into a motorcycle Very well made head and piston. Cylinder also super. Everything fits and is super made. Nice and aesthetic. Good for a gift !!! I recommend this set to anyone who lacks power or needs to do an overhaul of the 50 grid, and is afraid of mobtaz 110. Installation of 72 very simple, everyone can manage on their own in the resource with two screwdrivers and open-ended wrenches 10 and socket 13

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2016-03-15, 19:08

poland

Dominik

Cylinder of good quality. Head assembled and ready for installation. Cylinder + head fit all mopeds with 139fmb/fma engine wiec so it is good because the product is kind of universal. The only downside is that the packaging of the cylinder came a little battered, but inside these elements were wrapped in an additional foil boom wie więc probably something in the courier company happened. Anyway, I recommend it, I've been riding on it for a while now and nothing bad happens.

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2018-09-30, 09:28

poland

Marcin

Hi . As I was about to increase the capacity and dynamics of my moped I saw a 72cc kit so I decided to buy it . After putting it on and after 50 km on the run-in I do not recognize my moped, this kit guarantees everyone to increase its performance sufficiently. In summary, I recommend it to anyone who cares about improving the dynamics and comfort of driving their unicycle ;) .

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2016-03-08, 22:01

poland

Łukasz

i have a 2007 kingway 50 chopper I bought new starter chain sliders because the old ones were already very worn and while driving I could hear knocking after installing the new sliders the problem disappeared sliders fit perfectly in their place and not as I bought in another store nothing fit here, however, everything fit perfectly I am very pleased with them and I recommend them to anyone who wants to buy them.

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2020-10-22, 13:51

poland

Wojciech

Kit quality revelation for this price . Unfortunately, when it comes to the head itself, the shaft with bearings walked loosely and had to be corrected, as well as the valves are not tightened and need to be readjusted preferably before assembly. There should be an additional notice to check the heads carefully, because there can be such problems. Other than that, the motorcycle runs sensationally after assembly.

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2016-06-06, 14:45

poland

Łukasz

chopper kingway 50cc 2007 I bought this kit to improve the performance of my motorcycle, I am still in the process of lapping the cylinder but after a slight addition of gas you immediately feel that it has more power so after lapping and proper adjustment of the carburetor should ride at a speed of 100k / h The product is high quality worthy of recommendation to anyone who wants to increase the power of their motorcycle

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2019-04-26, 15:53

poland

Igor

Die Qualität der Nockenwelle ist schrecklich. Es gibt Spuren von Rost, man kann sie sogar auf dem Foto aus dem Laden sehen. Beide Lager waren blockiert. Ich schmierte und drehte sie mit Gewalt. Jetzt drehen sie sich, aber mit einem Knirschen, als wäre dort Sand. Sie werden nicht lange arbeiten. Ich empfehle den Kauf dieser Nockenwelle nicht.

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2024-10-07, 11:55

poland

Nick

Jeg har nu testet denne 72ccm motor og må desværre sige, at den ikke helt levede op til mine forventninger. Topfarten ligger omkring 50 km/t, hvilket er lidt skuffende, da jeg havde håbet på noget mere. Motoren fungerer dog fint og gør, hvad den skal, så hvis man ikke har behov for højere fart, er det et okay valg.

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2018-09-21, 21:22

poland

Oliwier

Hello, my motorcycle I own is this 2013 Romet Router ws 50. The cylinder and head assembled very well but the head was completely out of adjustment and you have to adjust everything yourself, the timing marks are different than they should be but yes its all good with no problems so far.

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2016-05-03, 11:31

poland

Daniel

Zipp vz 50.2016 previous vehicle kingway king rode it 75,000km Product quite good for this type of vehicle (Chinese). Cylinder as well as the head works well, goes on it to make satisfactory mileage (30,000 km without any problems.)Greetings to all moving on two wheels.Daniel.

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2019-12-25, 23:49

poland

Kamil

I ordered an engine for a 110 capacity motorcycle I got what I saw on the website the company gmoto concrete reliable conscientious I have a couple of motorcycles and only here I do my shopping I recommend if someone is wondering there is nothing to buy boldly goods of 1 class without sciema what is in the description you buy and you have really recommended

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2020-12-05, 23:57

poland

Jacek

Everything is fine but I have a few reservations if it is sold as a complete set then it should also include pins for the manifold well and there should be lapped valves and not now you have to disassemble to reach the valves and it would be better to pack such things so that there is no slack in the package.

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2024-12-02, 13:55

poland

Jamie

Prima blok, rijdt erg fijn en hij past inderdaad precies op een standaard 50cc lifan blok aansluiting. Het enige nadeel is dat het draadeind waarmee de uitlaat verbonden wordt ontzettend slechte kwaliteit is en bij mij allebei zijn afgebroken, ik zou aanraden ze zsm te vervangen.

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2019-03-22, 12:42

poland

Ryszard

Hello I have a moped Zipp manic 50 year 2008 the installation went quickly and according to plan the materials I received were solidly and accurately made in the package I received everything I should motorcycle rides without any complaints you can feel a large increase in power greet!

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2024-10-10, 07:26

poland

hard

Excellente qualité !!! Rien à redire pièces conforme à la description. Bonne finition monter directement juste réglage soupapes à faire ( comme toutes pièces neuve ) mais rien de compliqué. Moto redémarrer du premiers coup rodage en cours je recommande les yeux fermer.

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2019-07-30, 23:42

poland

Dawid

Moped 50 cc I bought this kit head and cylinder 72cc, there were no problems with the installation everything fit perfectly.Feel the power increase compared to the serial 50cc,engine fired up the first time and is in the process of lapping I recommend this store!

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2023-09-22, 06:02

poland

Paweł

Hello I purchased this kit for ws router and I must say that from the very unpacking it was obvious that it is decent, everything fits nicely together and works as it should. The only thing they could have added to the kit is a chain guide wheel in the cylinder.

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion

2018-09-15, 07:44

poland

Dariusz

Repair kit of very good quality, everything fits perfectly and works as expected. Moretti company makes products of high standard and can be recommended 100%!!! So I recommend the product as well as the seller because everything is of a high standard.

  • Esthetics: star star star star star
  • Material quality: star star star star star
  • Fitting: star star star star star
check

Reliable opinion