Sprocket Size

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3/5/2018 12:36 AM

I picked up a Subrosa Tiro with some aftermarket parts for $100 last night. When did the sprocket size get so small? Gearing is 25 and 9 in the rear. What gearing should i use for dirt jump and or flatlanding?

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3/5/2018 12:43 AM

30 to 9

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3/5/2018 12:45 AM

25 9 is pretty much the same gear inch as 44 16. But, if it feels too easy, get a 28t

Here's a gear inch chart for reference:
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3/5/2018 4:55 AM

Get a 28 tooth #28GANG

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Ride for yourself and have fun

3/5/2018 5:12 AM

For flatland most dudes run an easier ratio-like 22-10 etc.

For dirt, it depends on the trails you ride.

Quick acceleration = smaller up front, higher top speed = larger tooth count up front

It is about the same cost to change a driver on a cassette VS a sprocket (depending on the hub of course).

Just ride it for a while and see if you need it to pedal harder or easier or the same.

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