gearing for MX tires

[brandon34r]

i just got some razr mx's for the rear with holeshot mx 19 inchers for the front of my 450r.As soon as i bought the quad i switched toa 13t front sprocket with the stock tires on.Should i go back to the stock gearing for the smaller tires

[Jersey450R]

yes, the stock gearing is great with 18's on back. Let me know how you make out with 19" fronts. I think your gonna wish you had gone with 20's in the front but thats just me.

[R3Concepts]

13-38 is the best MX gearing for 18s, at least for the tracks out here.