Renthal – Front Sprockets - Suzuki - ATV, including 420 pitch grooved countershaft sprockets in 13, 14 and 15 tooth for the 03-14 Suzuki LT-Z 400, LT-R 450 and 03-06 Kawasaki KFX 400, sport quad owners tune gearing more aggressively than most riders realize, and these three tooth counts cover the full range of that decision. All are cut for 420 pitch chain from hardened steel and carry the grooved tooth profile that pushes sand, mud and trail grit out of the way instead of trapping it under the chain rollers. The 13 tooth shortens final drive for punchy launches, tight woods lines and TT racing where drive off the corner matters more than terminal speed. The 14 tooth is the balanced choice for mixed dune and trail riding, and the 15 tooth stretches gearing for long open runs where a quad spends most of its time in the upper gears. Because a quad loads its driveline constantly through ruts and jump faces, accurate tooth spacing matters: it keeps chain tension steady, reduces slap against the slider and protects the countershaft seal and rear carrier. Renthal quality keeps that feel consistent season after season.