BT-100 engine

Greg58

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May 1, 2011
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I just saw a YouTube video of a larger displacement engine call the BT-100, the bore is 50mm and has a 40mm stroke. It should be around 78cc so I guess we almost have a true 80cc class engine. Will be interesting to see one, hopefully someone here will do a test.
 
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zean

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Dec 5, 2010
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I've read here and/or heard that the more powerful BT-100 has issues with over heating due to the size of the piston and the cylinder-head design.
 
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javy mcdees

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Jul 30, 2018
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use top shelf oil for mixing and 50:1 ratio. if the cylinders are plated then it is worthless to me cause those cylinders just do not last. cast iron is where it is at if you ride these engines daily.
bike-am-commute.jpg.jpg
 
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indian22

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Dec 31, 2014
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Ditto the BT100 test Greg. Zeda has done quite a lot recently with the CG motor design. I'd be interested in how good the machine work is on the case inducted billet aluminum block/engine they're offering. I've not seen any specs to this point.

Rick C.
 

indian22

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Dec 31, 2014
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Zeda is just one of several dealers for the new made in USA billet cases.
Yep MBR I recall you posted a nice photo of a variety of U.S.A. billet blocks recently...so both 4 & 2 stroke cases/engines are available.

Javy I have no idea of what might constitute objectionable material on any site or information source at this point.

Rick C.
 

tothebeach

New Member
Nov 8, 2013
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burnaby bc
Javy what is the picture you posted of? From everything I can find the 100 won’t be available till after June 1, do you have a inside track to a supplier?
Yes I know where you can get one . Its in BC Canada a place called Zoom Bicycles . There gonna stop selling engine kits altogether so now is the time to get one if you want one . 320.00 Can .
 
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tothebeach

New Member
Nov 8, 2013
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burnaby bc
Yes I know where you can get one . Its in BC Canada a place called Zoom Bicycles . There gonna stop selling engine kits altogether so now is the time to get one if you want one . 320.00 Can .
LOL I now have 3 of them . I do like these motors , they are strong , damm near leak free , vibration is minimal. So far has been reliable too , Ive had mine for 3 or 4 months and ride every day . Its been fine no problems at all !!!
 
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