Can't find adequate friction drive OD roller sizes

Noticed Thatsdax sells a FD kit w/1.5in roller, didn't see just a roller for sale but call and ask if he has any replacements.
 
I have been running a Staton FD with a Zenoah G430 RC engine with a 1.125 roller and it is easy to get 35 on the top end. I weigh 205 if i tuck down a i can do a little better. The bike is a Electra alum. frame.

That is so friggin HARD to believe. I also have a Staton FD 1.125" roller, and the best max I can ever do is 22 mph. Now if I'm missing something here, well just let me know.
 
That is so friggin HARD to believe. I also have a Staton FD 1.125" roller, and the best max I can ever do is 22 mph. Now if I'm missing something here, well just let me know.
35mph on a 1.125" roller is 10500 rpm
22mph on a 1.125" roller is 6600 rpm
A HS 49cc should go 26.8mph at 8000 rpm
 
I would be open to getting a 2" roller! Not that i want to go that fast on a regular bases but,it would be nice to have the power if i needed it! How hard is it too replace a roller?Can someome suggest a vid on it?
 
35mph on a 1.125" roller is 10500 rpm
22mph on a 1.125" roller is 6600 rpm
A HS 49cc should go 26.8mph at 8000 rpm
Again,i know nothing but, i have had gps tracking an friends follow me an i get 30 to 35 mph! Is it maybe cranking up the gearshift to max?Or pressing down harder on the back end????
 
Sure I could have gotten a 1.5" roller, but it only get a few mph extra. The 1.125" has a nice haul ass acceleration. As far as going 8000-10,000 rpm, well forget about. Its just too early to FRY my HS4 engine.
 
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