Pro HCS Rear Sprocket SX65/TC65/MC65 25-

RFX Pro Series Hi-Carbon Steel (HCS) Rear Sprockets are the ideal choice for riders seeking exceptional durability, superior performance, and great value. Engineered from certified Hi-Carbon Steel, these sprockets deliver unmatched wear resistance and enhanced strength compared to mild steel alternatives.

Thanks to their added strength, the sprockets feature a lighter-profile design, minimising the weight difference compared to aluminium options without compromising on durability.

Each RFX HCS sprocket is precision laser-cut to ensure tighter tolerances and a perfect fit, offering reliable performance for every ride.

Product Features:

• Certified Hi-Carbon Steel
• CNC Laser Cut.
• CAD designed profile for lightness.
• Mud clearing grooves to reduce wear.
• Rigid design increases torsional strength.
• 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 on to 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.