Many people haven’t reviewed the Skyjet SJ-125-23 which is a Chinese import motorbike while being cheaply priced for new learner riders who want to get on to the road with a cheap run around bike, Although due to the old Chinese fake’s have always had bad quality people are wary about buying an import motorbike.
My brother personally bought one of these back in 2008 and the model has not changed one bit apart from now kaiser are taking over the Honda CBR replica bikes from China but they are same in build quality and parts apart from the color change of the engine on a kaiser which is now silver and on the Sky-jet it’s black
Let me say first about ordering one, Most suppliers give two options either you can buy it fresh in the crate/box and put the front wheel on yourself ( That is what they call assembling it yourself), However you should take the option to allow them to build it for around £50 most places charge, I say this because I built brothers for him and came into a lot of problems it didn’t just need front wheel attaching as specified i almost had to rebuild part of the engine due to it wouldn’t run so replaced Carbrutteta and all fuel lines and replaced the gearbox nuteral sensor before relisting they cut/disconnected the wire and didn’t specify that in documentation provided within the crate.
So having the supplier build it for you, You avoid any problems like I did and will be able to just ride it as soon as it comes but yes its a cheap import and don’t expect there to be NO problems that is why its vital to buy from suppliers who offer warranty’s as being Chinese many parts have tendency to break or just stop for no valid reason.
so when you have warranty you can get the supplier to repair any problems although they may be slightly minor such as bike idle not being set correctly and fuel/air mixture being too lean however if built by supplier they will obviously conduct the basic checks to prevent any future problems.
The main problems which occur after around 6000 miles is oil leak from side of right crank case, Will need new crankcase cover and gasket which can be bought from chinesemotorcyclepartsonline.co.uk for around £30-40 If you have Sky-Jet model don’t worry they don’t have your model listed just buy the kaiser parts and they work same due to be same parts.
The brake pads should be changed around 2500 miles into riding it from new if not under heavy braking all the time, My brother used just to travel to work so i found after 2000 miles then it was needed to replace only front brake pads due to he refuses to use rear brake as its got a light end and he has already hit the deck once by slamming rear brake on when someone pulled out of a side road.
Parts are cheap but Personally if your buying a chinese motorbike don’t expect it to last you over 25000 miles unless you keep it perfectly maintained you may want to get a pulse adrenaline for the imported bike which will last lot longer although it may seem to cost a few hundred more the extra cost is because of extra value and build quality.
Also the skyjet engine is an Old CG-125 Push rod engine before Honda fixed the vibrating issues meaning soon as you try rev your Sky-Jet/Kaiser it will vibrate so bad its rideable but you notice some things do vibrate tight or loose meaning you need to keep everything maintained, Take a few hours per month at least to look over everything and to make sure everything is clean and perfectly attached that way your bike will last you longer.
If you have the funds for a good bike then Stick to good makes of bikes such as the Aprilla RS125 which is a nice 2 stroke engine which is as close to a sports bike as possible while on a learner licence or just buy the Honda CBR 125 which is the perfect bike and will outlast any replica and will even outlast the Aprilla RS-125 due to 2 stroke engines need engine rebuilds after so many miles 4 strokes will just run and run and run.
This review will be improved and more content added in due course.


