I found this website that claims to sell the 53cc 4 stroke. it's at www.motorizedbicycle.com they give you a choice on the 49cc or 53cc. has anyone bought a 53cc from them. I tend to think that they would be sold out . It's around $300.00
Yes, I have access to the HS 144F-1G 53cc engines and use them.KC has built a couple, basically the same, just a little bigger............Curt
http://motorbicycling.com/showthread.php?t=59998
I haven't heard of Motorized Bicycles USA before, I dropped them an e-mail this morning.It is the whole kit for $300.00. I was kicking the idea around about getting a 53cc because of my weight(250). I didn't want to buy a 53cc and then have them tell me it's on backorder. Hopefully, someone has already bought one from them.
That's odd, but then anything other than the stock can muffler is an upgrade.In the meantime, the 2 cycle expansion chamber has been working great on my 49cc 4 cycle. My bike has never been so responsive. I put about 400miles on it since I put the expansion chamber on. It has a unique tone to it.
Ya, I love that .gif pic of how an expansion chamber exactly works on a 2-stroke.That's a pretty nifty diagram. The pipe I use is banana shaped. It is not a tuned pipe for maximum output only.
Oh jeeez, they put an undersized piston in the bore with wiiiidder rings????Yes, I have access to the HS 144F-1G 53cc engines and use them.
They look identical to the 142F 49cc.
Basically the factory just over-bores the cylinder a tiny bit.
I doubt they use a bigger piston, just wider rings I would suspect but I don't know, never opened one up.
Like I said, I don't know,I haven't opened one and it's a darn small overbore.Oh jeeez, they put an undersized piston in the bore with wiiiidder rings????
What guys?Any one buy from these guys yet? I dont see them on the "official grubee distributor list" and they are selling cheap, I need a kit fast,and they are the cheapest grubee around.
What guys?
And HS engines have nothing to with Grube, they are an engine company, Gurbe makes the 4G transfer case that fits them.
Ya, nice kits it looks like, the real McCoy as it were.https://www.motorizedbicycle.com/ as the op started the tread about. they sell the "whole kit" as HS engine and 4g transfer case and all the rest in the kit.
Bummer bud, but thanks a ton for the info on the seller.I got mine yesterday...,
However, they did not ship me the 53cc 144f kit, instead i got sent a 2015 model kit 142f 49cc with tapered shaft.
Oh well, I got another bike I can put it in.
If your looking for good 49cc 4G kits, I guess they got you covered. But at least for me, no 53cc engine made it to my door, good luck to anyone else who trys.