RFX Motorcycle crown Fantic XXF 450 [450]/Fantic XXF 450 [450]

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 centre made of 7075-T6 aluminium, and a longer lifespan for the teeth due to the high-density carbon steel outer ring.

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

Features:

• CNC 7075 aluminium inner ring
• HCS outer ring
• Hex-Drive placement between the inner and outer rings
• CAD designed profile for lightweight construction.
• New style of mud clearance grooves to reduce wear.
• The rigid design increases resistance to twisting.
• Anodized 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 spanner.
• Remove all nuts and the used sprocket.
• Clean the area around the hub, ensuring it is tidy and free from debris.
• Take the new sprocket and place it on the hub, making sure it fits well and the bolt holes are properly positioned.
• Clean the sprocket bolts and nuts.
• 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, making sure the chain is properly aligned and tightened according to the manufacturer's specifications.

Features:

• colour: Blue
• material: Aluminium
• v-colour: Blue
• weight (g): 500
• width (mm): 315
• height (mm): 20
• length (mm): 280
• volume (cm³): 1764
• chain pitch: 520
• sprocket version: Standard
• v-number of teeth: 49 teeth
• number of teeth (sprocket): 49