STM Powersports Arctic Cat Procross 7-8" Wide Bottom HYVO Gears

Made from billet heat-treated steel. Replacing the stock gears providing over twice as much longevity. Must be used with 7/8 wide Hyvo chain.

Available combos    Chain pitch

21/34                              82

21/38                              84

23/35                              84

25/34                              84

21/41                              86

25/38                              86

25/41                              88

21/49                              90

Replacing gears in the 2012-2013 four stroke models will eliminate reverse and require an 800 jack shaft either oem or the heavy duty STM shaft part #110 PCHDJS