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Your cart is empty. 1.Brand New Products with High Quality
2.60cc 44mm Big bore Cylinder Kit for GY6 50cc 139QMB Engine
3.This Parts Fit Most of Chinese Made Scooters and ATVs.Such as JONWAY,JMSTAR,ROKETA,SUNL,TANK,PEACE,TAOTAO
Ben
Reviewed in the United States on April 30, 2023
Ran for less than 10 seconds before another glixal product caused my exhaust valve to snap and drop thru the top of the piston
Chau
Reviewed in the United States on February 7, 2020
Good for a small increase in speed and power. Has been reliable and easy starting for the two months I've had it in the scooter with no problems.
J. T. Edwards
Reviewed in the United States on February 28, 2020
Took a few time to figure be out how to get it running perfectly after installation. I suggest checking out your variator weights and parts when doing a big note kit. Definitely gave me the torque I needed to get up hills and keep up with traffic without worrying me about blowing my engine up like with 80cc and up kits.
Hayward1010
Reviewed in the United States on February 17, 2018
Just remember the black ring goes second from the top and ALL the alignment pins should go back in and before putting it back together, never did use those red Things hope they weren’t important something with the valves
Benny
Reviewed in the United States on September 19, 2017
The cylinder head was poorly machine and badly scratched. Piston rings are warped badly. It is junk！
Customer
Reviewed in the United States on May 8, 2017
Installed this kit last weekend, it took about 2 hours. Had all the parts and gaskets needed to install the jug. Have been running the moped all week and it runs great. It has much more power than before. The price was great!
Moat
Reviewed in the United States on May 12, 2017
Excellent fit and finish, good hone on the bore surface, and all parts - as far as the eye can tell - appeared of very good quality. Only (minor, and somewhat expected) issue was a slightly "tight" end-gap on the top compression ring... a minute with a small file took care of that (about .001" removed). I would rather have new part clearances on the tight side, rather than loose - i.e.; you can take some off, but can't put some back!Everything went together without issue, and started/ran perfectly from the get-go, with no leaks (good gasket seal). With a gentle, varying-load/varying-RPM and cool-off period break-in of 30-40 miles and a total of 80 miles at this point, it hasn't appeared to use a drop of oil, and the oil remains very clean/light amber - a sign of a good, quick ring seal.Top speed (otherwise stock 139QMB) rose from the original 49cc's 37 mph to around 42-43 mph (actual) and noticeably better midrange pull against headwinds/up hills. My target steady cruise speed of 30-32 mph (actual) used to take ~2/3 throttle - now takes about 1/3 throttle.Very happy, so far (fingers crossed...) with these excellent results. Keep 'em comin', Glixal! Good stuff.
Customer
Reviewed in the United States on May 22, 2016
Works good on my 1P39 QMB.
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