hhey whats up i've got an 07 i already switched the front sprocket to an 15 tooth and am switching the rear to a 42 tooth sproccket now acording to the chain length calculator on the wiki it says i need a 111 link chain but that is impossible to do because chain are always even lengths now should i keep it at 110 lengths or go with a 112 this is a brand new chain i am putting on so i only want to have to cut it and link it once. any input apreciated.

If it was me, I would cut it to 112 and test fit it with the last link overlapping on the sprocket. That way you can determine whether 110 will give you enough slack.  Do this with the bike on the side stand or a rear (swingarm) stand - not the center stand.

Adjust the center distance entered into the calculator to get even tooth center distances.  The 15/42 with 110 links should be 25.329" centers and the 15/42 with 112 links should be 25.955" centers.  Stock 16/39/110 = 25.679"

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