eBay Template

Fitment:




  • KTM SX/SXF/EXC/EXCF 125-530 90-24


  • Husqvarna TC/FC/TE/FE 125-501 14-24

  • Gas Gas MC/MCF/EC/ECF/EX/EXF 125-450 21-24

  • STARK


RFX Pro Series Hi-Carbon Steel (HCS) sprockets are perfect for the rider looking for longevity and value for money from their sprockets while offering genuine quality not found elsewhere.


Certified Hi-Carbon Steel offers unbeatable wear properties and its added strength over mild steel allows for a lighter profile design, this means the weight increase over aluminium is kept to a minimum.


RFX HCS sprockets are precision Laser cut for more precision and tighter tolerances.




  • Certified Hi-Carbon Steel


  • Pro Series HCS Sprocket Features


  • CNC Laser Cut.


  • Rigid design increases torsional strength.


  • CAD designed profile for lightness.


  • Mud clearing grooves to reduce wear.


  • Tighter tolerances improve performance.


Fitting Instructions




  • Start with bike on a stand with the rear wheel raised from the ground.


  • Remove chain and wheel from bike.


  • While holding the Hex key loosen the nuts with a spanner.


  • Remove all nuts and old sprocket.


  • Clean around the hub making sure clean and free of debris.


  • Take the new sprocket and place on hub ensuring a nice snug fit making sure the bolt holes are in position.


  • Clean sprocket bolts & nuts.


  • Apply Blue Loctite to each bolt and insert in the holes.


  • Thread nuts onto bolts by hand ensuring locking seals are intact and in good condition.


  • Hold Hex key in place and tighten nuts even pattern.


  • Torque nuts and bolts in accordance to your owner’s manual.


  • Put wheel back in bike making sure chain is corrected aligned and tightened to manufacturer’s specification.

You may also like: