So I've heard several people say the Grubee kit is good. But today I came across a kit on ebay by "Lucky Early Bird" that looks nice, It has an angled spark plug for better ignition. It looks like it might be the same kit that "Boy Go Fast" sells. I feel like if I get the Grubee it will be one of those "I should've got a Hemi" situations, but I don't want to get something that's going to break after 100 miles.
Which kit?
- Thread starter chad223
- Start date
Allen_Wrench
Resident Mad Scientist
I can't say I myself that I've heard of "Lucky Early Bird". But I can't help being reminded of what they say about what the Early Bird gets. Ni hao, meiyu shi qing. Xiexie.
Donavan321
New Member
Hello there! I personally HAVE ordered kits from luckyearlybird. The first kit I got which was on my first bike build was awesome! But the muffler always fell apart! 
It was cheap. BUT I recently ordered a L.E.B kit for my buddy and the seller seems to have packed in higher quality mufflers. My buddys kit was missing the clutch lock screw when it had arrived though. The motors are of pretty good quality I'd say. Order a kit from Rose326a 140.00 with free shippping kits always come exactly with what's pictured. THE down side is every motr you get you will need to pull the clutch cover off and adjust the clutch so it freewheels one motor I got came with the clutch "frozen" the grease had dried ..so I removed the flower nut, clutch plate, spring and then there were 3 pins which the plate sits on.. I jammed the clucth gear with a flathead to prevent it from turning, then I used another flathead and wedged it between two of the pins and then carefully broke it free. it freewheeled, I re greased it, put it all back together. MOST of the time you just have to remove the flower nut because it's screwed on too tight. and fired her up after the build was complete. Other than that her kits have never been missing any pieces and they usually fire right up, you crank in the idle a little bit but she fires. I've never sent a motor back. BUT also, most of her motors have magnetos that DO NOT have white wires..you could always buy a different magneto but, I never power lights with my motors so I don't need a white wire. Everyone always asks me about the kits and I always point in them in the direction of rose326a. Others have ordered from Boygofast. There are some other sellers too with good feedback but I haven't oredered from them. Hope this helps! Also I have experienced bikeberry kits(AWESOME!! WELL WORTH IT) and Kingsmotorbikes(blew up after a year, terrible service) HAPPY RIDING! 
It was cheap. BUT I recently ordered a L.E.B kit for my buddy and the seller seems to have packed in higher quality mufflers. My buddys kit was missing the clutch lock screw when it had arrived though. The motors are of pretty good quality I'd say. Order a kit from Rose326a 140.00 with free shippping kits always come exactly with what's pictured. THE down side is every motr you get you will need to pull the clutch cover off and adjust the clutch so it freewheels one motor I got came with the clutch "frozen" the grease had dried ..so I removed the flower nut, clutch plate, spring and then there were 3 pins which the plate sits on.. I jammed the clucth gear with a flathead to prevent it from turning, then I used another flathead and wedged it between two of the pins and then carefully broke it free. it freewheeled, I re greased it, put it all back together. MOST of the time you just have to remove the flower nut because it's screwed on too tight. and fired her up after the build was complete. Other than that her kits have never been missing any pieces and they usually fire right up, you crank in the idle a little bit but she fires. I've never sent a motor back. BUT also, most of her motors have magnetos that DO NOT have white wires..you could always buy a different magneto but, I never power lights with my motors so I don't need a white wire. Everyone always asks me about the kits and I always point in them in the direction of rose326a. Others have ordered from Boygofast. There are some other sellers too with good feedback but I haven't oredered from them. Hope this helps! Also I have experienced bikeberry kits(AWESOME!! WELL WORTH IT) and Kingsmotorbikes(blew up after a year, terrible service) HAPPY RIDING! 
Bikeguy Joe
Godfather of Motorized Bicycles
Just because the kit says "grubee" on it doesn't always (or necessarily) make it a better kit. Sometimes, a kit will have better components like the throttle, or the muffler. However, the basic chinese bicycle engine kit is somewhat of a crap shoot when it comes to quality control.
Better to learn a bit about them, and buy one for a good price. You'll be tweaking and making mods and adjustments as you go no matter what you buy.
P.S., there are those that will tell you the kits by bikeberry, boy go fast, lucky early bird, ect. are somehow worse than others, and vice versa.
Better to learn a bit about them, and buy one for a good price. You'll be tweaking and making mods and adjustments as you go no matter what you buy.
P.S., there are those that will tell you the kits by bikeberry, boy go fast, lucky early bird, ect. are somehow worse than others, and vice versa.
Donavan321
New Member
Bikeguy is right! I'd say most of the kits are made the same way, sellers are just in competition with each other. The kits could look different but end up being the same cheap ass engine. It's all about experiencing it for yourself. I'd say out of the eBay vendors I've used Rose326a is the best! The kits are of fair quality. Give stuff a try, learn as you go along. That's what I did Grubee is just a name in my opinion, it's no different. Most motor kits are made in china but some manufacturers will tear the engines apart and rebuild them with american grade parts such as bearings. Bike berry kits have Japanese ball bearings for example. And Dax sells U.S made kits. Which is why there a little more expensive. You get what you pay for. Another factor of how long the engine will last is how well it's maintained too. Most people here on the forum recommend synthetic oil. I don't use it but I will be soon! I mixed a little in some gas I had. So, good luck!
Grubee is just a name in my opinion, it's no different. Most motor kits are made in china but some manufacturers will tear the engines apart and rebuild them with american grade parts such as bearings. Bike berry kits have Japanese ball bearings for example. And Dax sells U.S made kits. Which is why there a little more expensive. You get what you pay for. Another factor of how long the engine will last is how well it's maintained too. Most people here on the forum recommend synthetic oil. I don't use it but I will be soon! I mixed a little in some gas I had. So, good luck!
Donavan321
New Member
Bikeguy is right! I'd say most of the kits are made the same way, sellers are just in competition with each other. The kits could look different but end up being the same cheap ass engine. It's all about experiencing it for yourself. I'd say out of the eBay vendors I've used Rose326a is the best! The kits are of fair quality. Give stuff a try, learn as you go along. That's what I did
I've used a grubee skyhawk(kingsmotorbikes) as well as a grubee flying horse(bikeberry) The flying horse outlived the skyhawk by a long shot!
nightcruiser
New Member
I don't know if anyone else has mentioned this yet, but one advantage of having a "name brand" kit like Grubee or Flying Horse is you KNOW what you got. Unfortunately, as similar as all these motors are from the various vendors, they can be a little different. The size and spacing of the head studs can be different, the hight of the pin in the piston can be different, etc etc. This means not all replacement parts fit on all motors. If you have a name brand motor vendors will be able to sell you the right parts, and chances are when you get them they will fit. If you buy some random brand kit and the vendor doesn't have a full range of parts available, or is no longer selling parts and kits when you need them, then you have to roll the dice and order parts and hope they will fit when you get them. I've seen some threads from frustrated fellows that order stuff that doesn't end up fitting, since shipping is a big part of the cost when buying parts this can be a real bummer....
Good luck whatever you decide to buy....
Good luck whatever you decide to buy....
Bikeguy Joe
Godfather of Motorized Bicycles
I've never had to buy a replacement part...lol.
I've never read of any actual proof that Grubees are any better than other motors. The only advantage seems to be that you know better what you're getting into, and compatible replacement parts are widely available. Other than that, a Grubee is not necessarily any better than any other HT bike engine. I've never owned a Grubee, so I may be wrong.
To be honest, I'd suggest not even buying a kit and instead buying the motor by itself and all the parts separately. That way you can start out with quality parts that will last you. Most of the parts that come with the kits will work for a few weeks, but in the long run will cause you problems and need to be replaced. Buy better quality parts & mounting hardware, do a teardown of the motor to polish/clean/fix it, mount everything properly, and you'll have yourself a bike that you'll actually have fun riding instead of having to constantly fix things.
There's nothing wrong with getting a kit if you're a first-timer, but be prepared to replace the plug wire/fuel line/fuel valve/clutch cable/spark plug/mounting hardware/air filter/idle screw/sprocket bolts/chain tensioner.
To be honest, I'd suggest not even buying a kit and instead buying the motor by itself and all the parts separately. That way you can start out with quality parts that will last you. Most of the parts that come with the kits will work for a few weeks, but in the long run will cause you problems and need to be replaced. Buy better quality parts & mounting hardware, do a teardown of the motor to polish/clean/fix it, mount everything properly, and you'll have yourself a bike that you'll actually have fun riding instead of having to constantly fix things.
There's nothing wrong with getting a kit if you're a first-timer, but be prepared to replace the plug wire/fuel line/fuel valve/clutch cable/spark plug/mounting hardware/air filter/idle screw/sprocket bolts/chain tensioner.
nightcruiser
New Member
I've never had to buy a replacement part...lol.
OK, point us to the vendor that sells a perfect china 2-stroke kit that lasts forever and I'm sure we'll all line up to buy...
bigbutterbean
Active Member
He doesn't order replacement parts because you don't have to replace things when you know how to be creative with repairs.
nightcruiser
New Member
Well, not everybody has his super powers I guess, others may need a part from time to time.... lol
Bikeguy Joe
Godfather of Motorized Bicycles
I got a couple from thatsdax, and a few from kingsmotors. They weren't "perfect", just properly prepped and broken in, then maintained.
I'll brag, I've never had a tensioner go into the spokes, never broke a chain, throttle, ect. No cdi going bad, carb issues (once set up).The worst was running out of gas once and having to re-tighten a few nuts and bolts.
Guess I'm "lucky".
I'll brag, I've never had a tensioner go into the spokes, never broke a chain, throttle, ect. No cdi going bad, carb issues (once set up).The worst was running out of gas once and having to re-tighten a few nuts and bolts.
Guess I'm "lucky".
MotorBicycleRacing
Well-Known Member
ALL the 2 stroke motor kits are made in China.
I don't know why that 2 stroke kit on www.thatsdax.com has a "Made in USA" sticker on it because every part in that photo was made and assembled in China.
The "Made in USA" sticker was probably printed in China too!
Kits from Dax are pretty much the same as any other kit you can buy.
If Bikeberry kits have Japanese bearings they are installed in China and no
kit box seller in the USA is tearing engines apart and rebuilding them with american grade parts.
Bikeberry like most sellers do not even open the kit box from China before
they ship them out.
Chris Hill in Canada used to upgrade motors but he has been out of business
for a long time.
Arrow Motorized Cycles is the only seller that is upgrading motors that I know of in the USA
and they sell for $499 which includes a lot of upgraded parts and an expansion chamber.
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nightcruiser
New Member
If this thread was about how successful you are with your builds and how proper break-in and maintenance can keep your motor running strong I would be right there with you. But this thread was started by a newbie asking if one kit was better than the other and why. Others have explained that the kits are all made and assembled in China and they are all pretty much about the same. I simply pointed out they may be similar, but not the SAME when it comes to buying parts. Now I understand you are proud of your builds and ability to fabricate and "be creative with repairs", and apparently have never broke a chain or needed a replacement part, but I assume you read the forum like I do and understand that newbies generally don't have the same experience. There's a learning curve with these kits and generally before a newbie figures it all out they go through some trials and tribulations and might even need a part or two along the way. If you're beyond that good for you, but my guess is a most newbies wont be, and eventually even you may need a part or two. If not, good for you, but it's laughable to assert these kits are somehow solid as a rock and finding replacement parts is a non-issue...
Bikeguy Joe
Godfather of Motorized Bicycles
Nobody "asserted" anything. I will add that I never had a problem, even when I was a "noob" at these.
Hope you feel better.
wow.
Hope you feel better.
wow.
Bikeguy Joe
Godfather of Motorized Bicycles
nightcruiser
New Member
I was just trying to point out to the OP that the quality of the motors are pretty much the same but parts may not all fit together, why you insist on inserting tales of your infallibility into the mix is beyond me...
Have a good one...
Bikeguy Joe
Godfather of Motorized Bicycles
Just the facts ma'am.
Donavan321
New Member
can we be civil? The kits are made in china big farking whoop. They're fun, they're great learning experiences for younger kids. I've replaced parts on mine, some broken some just for upgrades but that's normal things wear down. That's life. Nothing lasts forever. If we're all going to argue over something so dumb maybe we need to step back and relax.
Donavan321
New Member
Me either! Except for the tensioner issue...but that's long been resolved, some people run into the strangest issues. I think the time the motor will last will depend on how well it's maintained and a rider's riding habits. Agree?