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Matified · 03-02-2008, 04:33 PM

The X4 150 comes with the 428 chain, I think that first and second will be too close with the 15 or 14 in the front. I would suggest going to a 16 front with a 37 rear, you will find it makes first useable and second will be your best friend , it will then allow third and forth a little more run out and top speed.

03-02-2008, 04:33 PM	#2 (permalink)
Matified Pitster Employee Join Date: Feb 2008 Location: USA Posts: 1,887	Re: 08 X4 Gearing The X4 150 comes with the 428 chain, I think that first and second will be too close with the 15 or 14 in the front. I would suggest going to a 16 front with a 37 rear, you will find it makes first useable and second will be your best friend , it will then allow third and forth a little more run out and top speed.