SuperSprox Front MX Grooved CST-1590-13 JTF1590 SC

Made from SCM-435 case hardened steel for extended life. 

The refined core structure ensures that the teeth will not break when worn, like cheap C-45 sprockets often do.

Grooves and lightening holes for off road bikes.

The lightest and strongest sprockets on the market

Fitment Summary
Compatible with 67 models (yearly).

• Yamaha: WR 250F, WR 250FM, WR 250FN, WR 250FP, WR 250FR, WR 250FS, WR 250FT, WR 250FV, WR 250FW, WR 250R, WR 250RA, WR 250RB, WR 250RD, WR 250RE, WR 250RF, WR 250RG, WR 250RH, WR 250RJ, WR 250RY, WR 250RZ, WR 250XA, WR 250XD, WR 250XE, WR 250XF, WR 250XG, WR 250XH, WR 250XJ, WR 250XK, WR 250XY, YZ 250F0, YZ 250F1, YZ 250F2, YZ 250F3, YZ 250F4, YZ 250F5, YZ 250F6, YZ 250F7, YZ 250F8, YZ 250F9, YZ 250FA