RFX Motorcycle crown Gas Gas MC 150 Pro Series 520

The RFX Pro Series Armalite sprockets are designed and tested at the highest level by the racing teams of world and British championships.

The dual-sprocket design offers optimal performance, reduced weight thanks to a 7075-T6 aluminium centre, and a longer lifespan for the teeth thanks to the outer layer made of high-density carbon steel.

The Armalite sprockets also feature a hexagonal interface between the inner and outer rings, a revolutionary technology for sprockets that maximises transmission between both parts and eliminates any force on the rivets.

Features:

• CNC 7075 aluminium inner ring
• HCS outer ring
• Hex-Drive location between the inner and outer rings
• CAD-designed profile for reduced weight.
• New mud clearance groove style to reduce wear.
• The rigid design increases torsional strength.
• Anodised colour

Installation instructions:

• Start by placing the bike on a stand, with the rear wheel off the ground.
• Remove the chain and wheel from the bike.
• While holding the hex key, loosen the nuts using a wrench.
• Remove all nuts and the worn sprocket.
• Clean the circumference of the hub, ensuring it is clean and free of debris.
• Take the new sprocket and place it on the hub, making sure it fits well and the bolt holes are properly aligned.
• Clean the bolts and nuts of the sprocket.
• Apply blue Loctite to each bolt and insert them into the holes.
• Screw the nuts onto the bolts by hand, ensuring that the seals are intact and in good condition.
• Hold the hex key in place and tighten the nuts evenly.
• Tighten the nuts and bolts according to the user manual.
• Put the wheel back on the bike, ensuring that the chain is properly aligned and tightened to the manufacturer's specifications.

Specifications:

• colour: Black
• material: Aluminium
• v-colour: Black
• weight (g): 568
• width (mm): 310
• height (mm): 20
• length (mm): 310
• volume (cm³): 1922
• chain pitch: 520
• sprocket version: Standard
• v-number of teeth: 46 teeth
• number of teeth (sprocket): 46