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Discussion Starter · #1 ·
Hi,

I am looking at upgrading the cam on my bike, I was looking at Uma Racing that have three different versions specified as:

S1, R1 and R3 Spec:
S1 — Lift: 5.7
R1 — Lift: 5.8
R3 — Lift: 6.5

My question is, does anyone know what the original is?

The difficulty is that most countries have the 150cc version of these bikes, hence the performance parts are mostly specified for the 150cc and almost nothing on 125cc.
 

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2008 YZF-R125 (180cc)
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can't answer to lift but..

stage 1 of this looks to be for stock 125 and has the hole for the decomp mechanism too so you can still start it. I run the stage 2 of that on a 180 cylinder and have maybe 3k on it so far. I think it worked out $90 delivered to uk.

They're pretty helpful so if you need the exact lift it's worth droppign them an email.
 
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