Got two engine kits and one went together and works flawlessly. The second had issues but Earl with customer service stops at nothing to get you the help you need! They could use a better quality control system but they make up for it in customer support!

This is a great kit if you do not want to deal with a clutch and pedal start. The kit is a little harder to install than the 2-stroke pedal start kits but
nothing over the top. I added the proformance pipe but had to cut and weld to make it fit. I also was not crazy about the provided battery holders
so I did my own thing. It runs good right out of the box with no carb jetting. I would definitely purchace this kit again.

I highly recommend this kit to anyone who wants a good running easy to start and long lasting engine, I use this one a lot love this one over my other one I had and haven't had any problems with it

I love this kit. This is my 3rd one this year. Had a slight issue with the gas tank but bikeberry stepped up and made good and sent me a new one. Awesome stuff right there. Plan on buying more in the weeks to come. Thanks again bikeberry for your quick response.

Mark

My first engine was a Chinese kit from Amazon, it worked very well, only thing I didn't care for was the pop starting it was a pain. Having to pedal and balance the bike while working the clutch and choke. So I found this electric start kit. Assembly is easy if you understand basic mechanics. This kit comes with everything you need to get started, minus the fuel. I've riden the bike for a couple years now. Only thing I've changed was the rear sprocket because 1. I don't want to pedal and 2. I live where there is a lot of hills. But the included rear sprocket is ok for majority of riders with balance of power and speed. The electric start option with pull start backup is the best set up so far!

I was skeptical about buying it but I'm glad I did on sale for 250. My pull cord won't work but that problem is fine for now. The gas tank is bigger then 1.5, it's not hard to wire it up just watch the old tutorial or Tony Taylor installation. And I'd suggest getting a better fuel line,mine kept getting air in it. Anyways this engine deff has power to it, I've never rode a 44t SPROCKET but decided to for stop and go and works perfect,also fits with the switz Cruz. 2 more things to know is DONT get the bottom bracket unless you have the 70 mm or higher bottom bracket and DOES not come with battery and you also need 4stroke motor oil for the clutch and still run 2 stroke oil with the gas.

I've been riding motorized bikes for awhile and this motor beats anything I've rode. There's plenty of speed and I love the electric start I'm 62 years old and pedaling a bike to get it started is pretty rough. But hands down this is the best I've had so I would recommend it to anybody that has experience with these bike's. I will tell you look close at the kits picture because that's what your buying the kit don't come with the bottom crank or battery you will have to buy that yourself I think I paid $25 for the battery and $22 for the crank. But again this is well worth your money I had to mount my battery just behind the seat

Runs great wish they were cheaper so I could buy one every week!!!

I love it, So far have bought three of them. One for my boyfriend, daughter, and me. Easy to start, runs good. Not hard to put together.

Great product

Truth is this is one of the only motors that realy is worth its salt and money. My second one and soo to get another motor of a differnt type. Thanks Bikeberry and the crew

Excellent product. Easy install….Works great…

Missing parts, incompatibility issues, very annoying and time consuming to install, and I haven’t even gotten the engine to work yet. I do regret buying this🤦

Excelent motor works very well and Quick delivery ,recommend the seller. Thanks..

Received my order in a few weeks as expected, everything was there except instructions, but utube has lots of instructions and reviews about the engine, I fitted the engine with no problems and it started no bother, very happy so far, I think it should last as long as it’s not thrashed full throttle constantly lol.

Very Good excelente

So this engine is a lot wider then a normal engine. Which is expected but should be noted. I’m guessing it’s as wide as a four stroke. I couldn’t find a tutorial anywhere so if you’re a new builder like me go try something else first, which is the reason for the low rating. Parts seem pretty quality though.

The parts I got are indeed good quality parts, but nowhere on the website does it specify wether or not they can be fitted with custom parts. After over 30 minutes on hold, I was told that I would be responsible for shipping the engine back myself, (including costs), and that the refund of the difference would only be in store credit. The act of returning these parts would have ended up costing more money than the refund itself. Again, the parts themselves are good quality, but there is a clear lack of specification on the website and customer service on the phone. In the end I WILL use the engine and I like it a lot but their customer service needs to be improved

This is a great kit for the enthusiast that wants a convenient electric start for their bike, this kit came complete except for a battery, the included pdf instructions were for a different model but it wasn’t too much of a challenge to complete the kit.

Don't know ask Ryan!!!!!!!!!

When I get all of the parts to assemble it I will be happy to let u know

Wonderful service. Quick shipment of product. Only thing was the kit was missing the bar that connects the two cranks for the widened pedals.

Awesome motor. This motor has a Lotta power and Accelerates very quickly and it’s just a joy to ride

Ok I have a BBR stage motor not sure what stage it was my first bike bought from and old gentlemen for a steal already built on the best frame I've found for mororiybikes I have a pair of them now.ok my bullet train one thing my cilinder turned gold when it got hot have you had anyone else say this I have the proff still that way it is the beat perfect way to motorize a bike the clutch and starting options make it all I want just cannot seem to get a CDI for 1momth or more and what with these CDI s tearing up Ive bought I think 8 and I down now for that reason that's the only reacuring prob really I have no real complaints at all just that I love my motors and bikes but the CDI issue needs addressing asap yeah love my bikes I'm about to finance one of y'all's in frame gas tank bikes like today possibly think that's all I got service good shipping well it's shipping maybe early or late never been damaged and I've bought good CDIs y'all's the beat ones 40$ I payed it lasted 2rides god my witness and maybe a month or two longest I've gotten tell me something on that cilinder issue wierd I say maybe some copper was in the mix that's the type color it turned I watched it happen first ride out that's all I got

Seems to work well good all around engine