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Your cart is empty. 1.New Products with High Quality from chinese brand factory
2.Upgrade 47mm 80cc Cylinder Kit for GY6 50cc Engine
3.This Parts Fit Most of Chinese Made Scooters and ATVs.Such as JONWAY,JMSTAR,ROKETA,SUNL,TANK,PEACE,TAOTAO etc...
Courtney
Reviewed in the United States on January 26, 2025
Worked like it should but did not have instructions.
Christopher C.
Reviewed in the United States on May 1, 2024
I paired this big bore kit with a 80cc cylinder head for better performance. This setup helped my acceleration greatly. Take off speed is 100 times better and my top end speed increased by around 7-8mph. I paired it with a better exhaust setup and now getting 10-12mph faster speeds. Next I'm changing the gears to maximize performance. It's been a month and so far this cylinder and piston kit has been perfect (knock on wood). I would suggest pairing this with a 80cc cylinder head for the best performance. I'm definitely happy with everything in this kit and have already recommended it to others. I will update this review in a few months or before if something changes.UPDATE: It's been 3 months and everything is still working great. Make sure you break it in for at least 50 miles. I decided to go with a 49/17 secondary gear set just to try it out but there wasn't much difference. My RPM'S were running a little low so I switched to slider weights to increase them and it also increased my acceleration even more. I'm still happy with this BBK and I still recommend it. It's one of the biggest performance increases you can do on a GY6 50cc scooter. So if your thinking about it then just do it!!!
Lee belcher
Reviewed in the United States on July 25, 2023
Did not have good compression I have to order a nother one don't happen much I'm sure but it was no good to me I just got one that was bad no one's fault I guess just the way it was that time
diego serrano
Reviewed in the United States on February 21, 2023
Was able to install it with no prior mechanic experience. Just watched youtube videos. Gave my 50cc scooter more pickup and tip speen, Went from 37MPH to 42MPH. Kept the original head.
bradley Barnet
Reviewed in the United States on November 20, 2023
installed in september of 23, it took roughly 40 minutes. I was concerned because one of the rings did not require any gap adjustment. also installed the same company cam upgrade. Overly satisfied not only does it have amazing response from take off but it has great throttle response between 20 to 35. It will go up hill and still gain speed. It is scary fast at top end it will go into the 40s if flat and have buried the speedometer (at 50)easily on downhill. I have been scared to go full throttle on numerous occasions, ten inch wheels over fifty is crazy. I would highly recommend this kit, I actually own two tao tao scooters and this was not running as well as my other so I decided to try this and I am HIGHLY satisfied. I can make it anywhere as fast as car except highway trips, amazing value and the difference I have noticed is defiantly better. I gapped my rings on install, did a 100 mil break in and this scooter scoots. I have put 875 miles on since upgrade, so fun to drive I live in colorado so the altitude affects performance and this still rocks!I do not normally write reviews but this was such a great purchase I wanted to share.BUY AND ENJOY
Ronna Gralitzer
Reviewed in the United States on November 2, 2023
Quality and ease of installation for use
Mark
Reviewed in the United States on June 8, 2021
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Carl Dunham
Reviewed in the United States on November 15, 2021
This is cheap upgrade and quality is standard. This type of kit you don't have to worry if on valve length, because you bolt yours right to it. it started right up. off line is a big difference. Moving around in 35mph roads are much better then stock. I am approximately 170lbs. My bike matches or is a Corger cycle, Solana 49cc. running with 8 gram rollers. 43 average top speed.rode about 250 miles
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