What more can I do for speed?

Thomas Carpenter /

I have a Tomos Streetmate. I’ve put an entire 70cc kit on it, a 17.5 mm carb, higher jets, biturbo exhaust, and higher gearing. Is there any other upgrades I could go for? Thanks.

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Re: What more can I do for speed?

What's your current gearing? What's your current recorded top speed?

Re: What more can I do for speed?

Looks like a stock top end to me unless that's a old pic......

Re: What more can I do for speed?

There are always things you can do. What are your goals?

A better exhaust would be a good start.

Re: What more can I do for speed?

Better exhaust. Clutch tuning paired with different gearing. Porting your cylinder, case matching the engine cases to your cylinder.

Re: What more can I do for speed?

up shits creek /

Bigger carb(vm20). Better exhaust (crank pipe)

Re: What more can I do for speed?

HPI mini rotor will make a big difference too. But then you'll start destroying clutches and shit

Re: What more can I do for speed?

Kevin Bishop /

Exhaust for sure, but it did use that same pipe on a bike that pulled pretty good. I just shortened the header ~2”. A bigger front sprocket would get you there too like a 28. (edited)

Re: What more can I do for speed?

More air flow 4 pedal reed Dremel out intake and exhaust phbg 19 or vm 20 28 20 gearing avg 50 with clutch work

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