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I'd bet Robinson is making them....and last I heard, they were only making a 1-4...so this is good news.

1-5 and 1-6 will be the ticket for asphalt guys.

Are the ratios the same as the stockers??

Since this is in 2 stroke technical, and NOT classified...let's discuss....


My opinion unless you start getting into 130HP or more....even a billet 2nd isn't worth the investment...
 
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Discussion Starter · #8 ·
QUOTE (dajogejr @ Aug 30 2008, 06:14 AM) index.php?act=findpost&pid=9648Are the ratios the same as the stockers??

My opinion unless you start getting into 130HP or more....even a billet 2nd isn't worth the investment...

The billet gears are stock ratio's.

There are alot of guys out there running the billet 2nd in the motors under 130hp.
From sand to asphalt draggers.
Better than sitting at a track and you can't race when you broke a stock 2nd gear.

In motocross years ago. I and team mates have broken 2nd gear anytime. It don't like downshift sides.

In my 710 DM motor. I'm just using the small billet 2nd gear. Not the big wheel billet 2nd.
 
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Discussion Starter · #12 ·
I talked to Bill Robinson today.

I got him to add .050 more to the output shaft. Make it longer..
If using a 530 front sprocket. It will fit better on the shaft.

The next sets Robinson makes. The output shaft will be longer.
 
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