49cc 4-Stroke 30 Series Torque Converter Build

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Barnfresh

Member
Sep 5, 2011
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I'm going to try a 10-46 with a 7" driven on 25" wheels with a modified 79cc that will rev 6000+... So it would do 80mph if it can push the gear? If I went with a 9or10 -56 probably be more realistic ...they make a 42 46 48 and a 56 that I can find for the pugeot 103 hub... I can use the sprockets for 2 stroke builds... Froala
I haven't gotten anything from France in a while... Thank you for this information
I found an 5/8” bore 8t 415 sprocket for the jackshaft however 56t was as large as I could go before the chain rubs the frame stay so I’m currently in the process of swapping my final drive to #35 which should allow fitting sprockets up to 75t.

What I really need now is a 6 hole IS (44mm BCD) adapter to standard 6 hole 5.250" split sprocket pattern, if anyone knows of such a thing. This way I can utilize my arsenal of #35 sprockets leftover from Kart racing to find a sweet spot and utilize the full range of primary ratios my CVT offers, 3.13:1 to 1.12:1.

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Funny you should mention the P103 moped hub because in my search for a split sprocket adapter I ran across where Sportscar Pat made a split sprocket adapter to fit his moped hub.


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Mossy

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May 20, 2022
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I found a 60T on treatland... 6 bolts 43mm diameter...
I'll have to figure out clearance issues what I get to that point.. but a 60 is going to be better than a 46-48... Might not be ideal but like you said more usable... For $15 I don't mind having a few of each
 

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