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2025-11-06, 14:31
DENJEAN Stephan
I installed this cylinder on my TZR and pushed the displacement up to 88cc with a C45B90 crankshaft and base plate ... very good value for money ... I've also installed it on friends' bikes, who are very happy with it, but I've left them in standard displacement with just an exhaust and good adjustments ... they're all very happy with it. in the photo I've repainted it in metal gray to match the rest of the engine block. I don't hesitate to suggest it to my friends and their acquaintances, as well as on the many facebook groups I belong to ... I regularly order parts from you and I'm not disappointed by the quality/price ratio. Have a safe trip! Sincerely
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2019-07-22, 08:52
Natalia
Owner of a Supermoto Honda HM derapage 50 , purchased the product from your site I installed myself without much difficulty using an allen wrench , The biggest plus of the item is to match the style of carbon on the motorcycle properly blends into the background with delicate workmanship and during firing performs its proper function .
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2020-04-25, 11:44
Robert
I own a Guitar Runner SP 50cc and a Rutcher scooter without this wrench the valves seemingly well set with a wrench angle and yet not what I found out for myself , it was never perfect and that's b much , lack of power and other problems of misaligned valves . Ideal for 4T scooters larger and smaller . Worthy of Recommendation !!!
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2020-05-13, 11:48
Markus
Cpi sm 50 vintage 2009 Cylinder made very well as far as budget is concerned. Quality very good everything fit perfectly. Aesthetically it had a couple of factory chips but it does not hurt anything. No reservations when it comes to a cylinder of such an amount :) just put it on and ride.
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2020-11-24, 09:09
Dominik
I own a 2004 Aprila RX 50 there was no problem with the installation, the old thermostat did not fit the cylinder. I recommend it works black raspberry.
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2019-04-30, 14:56
Kuba
I have a 2009 yamahe tzr70 with am6 engine the cylinder fit nicely without any difficulty. I highly recommend this kit.
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2024-09-20, 12:52
Franz
I ordered this 139qmb engine, it fits perfectly and runs like the original from my Peugeot scooter after running in. If the mileage is the same, I'll buy it again straight away But I changed the engine oil and gearbox oil before the first start.
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2024-11-22, 05:30
Perttu
Arrived 3pv late and could you please correct the dimensions to be correct as the intention was to fit an 80cc cylinder with a piston and with a trille 90cm³= 80cm³ so I thought a 90cm³ piston is the same size as an 80cm³
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2025-11-11, 15:09
bailleux
Well packed parcel. Top delivery. I haven't fitted them yet but I can't wait to try them out. I recommend it to anyone who wants an 80cc engine for their scooter.
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2021-06-07, 10:14
Krzysztof
The set is as fine as possible. Everything fits into its place. The quality of the materials used for production very good as well as aesthetics. Greetings and recommend the purchase.
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2025-05-23, 12:36
Martineau
Good engine more powerful than the original fast delivery just transport standing book results book HS to see if give me a book in French it would be cool
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2021-01-16, 06:34
Karol
The quality of the basket very good, the quality of the sliding sleeve well-fitted only a pity that the set does not include a nut and lock washer, but this is a detail.
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2021-12-02, 21:12
ANDRZEJ
Scooter ROMET RXL PREMIUM 2017 ANNIVERSARY shaft ok seals also although there are sports shafts with stronger bearings and crankset but this one also passes the test I recommend.
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2024-09-19, 10:16
Gustav
i bgot the lug nut and i had a little of a problem getting it on, but once it was on it worked really well. i locked it tight and dont have a problem with it
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2021-05-02, 20:39
Wojciech
Zipp Steed 50 capacity 50ccm converted to 80 ccm good quality goods fit 139qmb/ 1p39qmb engine seals I compared with the original are ok.
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2025-08-13, 04:48
Jari
The engine quickly arrived on my doorstep within a few days. It was exactly what was ordered. The carburettor needed a little adjustment but now works like a dream.
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2020-08-24, 07:36
Rafał
The wrench would probably fit but it turned out to be the wrong size. The square fits but not for the lock screw. I bought in the dark but have already dealt with it.
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2021-03-13, 20:17
Edmund
The key meets expectations as well as my requirements. I recommend shopping at gmoto.pl here they really care about the customer what I state with firmness. I recommend.
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2018-08-25, 08:20
Kamil
Moto : Peugeot XP 6. Lightweight kicker, nice workmanship, good fit but durability can only be judged after some use.
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2023-01-09, 07:30
Mariusz
The wrench fits perfectly for adjusting the valves I really recommend it because neither do the nuts get machined. As for the money I recommend as much as possible.
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2020-05-17, 18:04
Monika
Kingway vonroad scooter, 2007. All ok,very good quality, installation went well, everything works
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2024-05-03, 14:39
Christian
Fits Romet 747 scooter, screws are not included and yes it's a good set I recommend the price low aesthetics high
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2024-09-25, 08:21
Alan
Cylinder fits All components were in the package The cylinder does not overheat and works very nicely.
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2024-10-11, 04:05
goncalves
The product is in good condition, not damaged. I tried it and it works perfectly, nothing to say?
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