80cc Engine Crankcase with 6mm Studs for Motorized Bicycle

Looks great, must have got one of the better castings. All of the threads are great. All the sealing surfaces are smooth. Looking forward to building it. I was hesitant to buy it based on some of the reviews, I am also realistic. I knew I had work to do to make it what I want. Pleasantly surprised so far. May scoop up another one

in comparison to the last 2 I purchased this one is much better... if you don't have the nuts and bolts or yours are worn purchase them otherwise your going to have a hard time putting it together

Fast delivery, good price

This is a nice product for the price. The casting is about as good as anyone of the other complete motor casings that I have purchased. Just like any case they do require a lot of cleaning, deburring and porting. This Case gave me the ability to build a nice Motor out of all my good used parts! This is a good deal while they last!

the threads on almost everything have craters, especially the head studs, mine all stripped out because theres barely any threads to grab, its a gamble buying this they are probably all bad, better to just but a full pk80 engine, pretty sure those are casted by runwell.

The motor comes without bearings, seals or screws connecting rod or anything else so do your research. I still can’t figure out how to get seals for it. There’s so many options. The motor itself seems ready for bearings. No scratches very smooth surfaces for bearings.

But haven't used it yet

I bought the wrong one but it looked like good quality

The work is considered acceptable.

Great product delivered on time highly recommended

It came 8 days early. Thats great. But the case was uneven which makes is useless, unless you spend and hour slowly sanding it down flush. The holes for all four bearings were way to tight, had to sand them down as well (alot) and the mounting studs are m6. The skinny ones. I dont know why they did not label that. Overall i rated 1 star. I would rather have a better part then wait the short wait for this junk. I had to put 3 hours of work into this piece. Hopefully it works. And the seller is lazy, package came in a plastic bag in a box, no padding or anything. Bag was cut up from all the banging around. Surprised its not broken. Absolute crap.

Good metal in this.... I know because i dremeled a intake for a case reed in it.