4th Wheel Kit - Tri-Hub Eliminator // 2013-2018 Arctic Cat F/ZR 4000/5000/6000/7000/8000/9000 129'' Models w/ 7.12'' Wheels

With the Speedwerx 4th Wheel Kit installed, you will have a more stable ride and better traction under acceleration. This kit prevents the sled from "walking" when the skis are off of the ground. This kit eliminates the stock Tri-Hub assembly and replaces it with individual wheels- they run much truer and you will not be left stranded in the event of wheel or bearing failure like you would with the stock setup!

Kit comes complete with four idler wheels in your choice of colors (Black, Team Arctic Green, Orange), machined aluminum spacers, all necessary mounting hardware and full installation instructions.

Applications: 2013-2018 Arctic Cat F/ZR 4000/5000/6000/7000/8000/9000 129" Models w/ 7.12" Wheels

Note:  7.12" wheels are a closed-spoke design. Use this kit on 2012 models when installing a 14" track- not compatible with stock 15" wide 2.52" pitch quiet tracks. For 2016-2018 ZR 137" models and all XF and M models with 8" wheels, use SPX4WK-5-8. For 2013 F800/F1100T RR and Tucker Hibbert models, use pn SPX4WK or SPX4WK-8.

This vid shows the excessive runout on the stock molded Tri-Hub assembly- this little wobble can turn into a big vibration at speed...

This 4th Wheel Kit eliminates the stock Tri-Hub wheel assembly and utilizes four individual idler wheels for more stability and traction!