RFX Motorcycle crown Aprilia RXV /Aprilia SXV 450 [450]/Aprilia RXV 550 [550]

The RFX Pro Series Armalite sprockets are designed and tested at the highest level by the racing teams in the 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 outer layer made of special high-carbon steel.

The Armalite sprockets also feature a hexagonal interface between the inner and outer rings, a groundbreaking technology for sprockets that maximises the transmission between the two parts and eliminates all force applied to the rivets.

Features:

• CNC 7075 aluminium inner ring
• HCS outer ring
• Hex-Drive location between the inner and outer rings
• CAD-designed profile for lightweight.
• 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 the wheel from the bike.
• While holding the hex key, loosen the nuts with a wrench.
• Remove all nuts and the worn sprocket.
• Clean the edge 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 snugly and the bolt holes are properly aligned.
• Clean the bolts and nuts for the sprocket.
• Apply blue Loctite to each bolt and insert them into the holes.
• Screw the nuts onto the bolts by hand, ensuring the seals are intact and in good condition.
• Keep 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 tight according 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: 51 teeth
• number of teeth (sprocket): 51