IMCO Extreme SC Upper
#4
#5
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Joined: May 2009
Posts: 3,895
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From: Chicago, IL; Onekama, MI
All XR uppers are the same ratio, and Imco uses XR gears in that drive. So unless some one put X gears in it, the ratio will be in the lower gear set. If you are going to put a standard Bravo lower on it, it will be a 1.50 ratio.
X Bravos and Std Bravos the ratio is made in the upper.
X Bravos and Std Bravos the ratio is made in the upper.





