RFX Motorcycle crown Aprilia RXV 550 Pro Series 520

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

The dual-sprocket design offers optimal performance, reduced weight thanks to a 7075-T6 aluminium centre, and longer tooth lifespan due to the special high-carbon steel outer ring.

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

Features:

• 7075 CNC aluminium inner ring
• HCS outer ring
• Hex-Drive location between the inner and outer ring
• CAD-designed profile for added lightness.
• New mud release groove design to reduce wear.
• The rigid design increases resistance to twisting.
• Anodised colour

Installation instructions:

• Start by placing the bike on a stand, with the rear wheel off the ground.
• Remove the chain and rear wheel from the bike.
• While holding the hex key, loosen the nuts using a wrench.
• Remove all nuts and the worn sprocket.
• Clean the area around the hub, ensuring it is clean and free of debris.
• Take the new sprocket and place it on the hub, ensuring it is properly fitted and that the bolt holes are correctly positioned.
• Clean the bolts and nuts of the sprocket.
• Apply blue Loctite to each bolt and insert them into the holes.
• Hand-tighten the nuts onto the bolts, 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.
• Replace the wheel on the bike, ensuring the chain is properly aligned and tightened to the manufacturer's specifications.

Specifications:

• colour: Red
• material: Aluminium
• v-colour: Red
• weight (g): 481
• width (mm): 306
• height (mm): 20
• length (mm): 309
• volume (cm³): 1891
• chain pitch: 520
• sprocket version: Standard
• v-number of teeth: 48 teeth
• number of teeth (sprocket): 48