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

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

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

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

Features:

• CNC machined 7075 aluminium inner ring
• HCS outer ring
• Hex-Drive location between the inner and outer ring
• CAD-designed profile for lightweight construction.
• New mud-clearing groove style to reduce wear.
• The rigid design enhances torsional resistance.
• 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 hub area ensuring it is clean and free of debris.
• Take the new sprocket and place it on the hub ensuring it is properly fitted with the bolt holes aligned.
• Clean the bolts and nuts for 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.
• Hold the hex key in place and tighten the nuts evenly.
• Tighten the nuts and bolts according to the user manual.
• Reattach the wheel to the bike ensuring the chain is properly aligned and tensioned to the manufacturer's specifications.

Features:

• colour: Orange
• material: Aluminium
• v-colour: Orange
• 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: 52 teeth
• number of teeth (sprocket): 52