RFX Motorcycle crown Suzuki RM-Z 250 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 two-sprocket design offers optimal performance, reduced weight thanks to a centre made of 7075-T6 aluminium, and a longer tooth life due to the special high carbon density steel outer part.

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

Features:

• CNC 7075 aluminium inner ring
• HCS outer ring
• Hex-Drive location between the inner ring and the outer ring
• 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 wheel from the bike.
• While holding the hex key, loosen the nuts with a spanner.
• Remove all nuts and the worn sprocket.
• Clean the hub area, ensuring it is clear and free of debris.
• Take the new sprocket and place it on the hub, ensuring it's properly fitted and the bolt holes are correctly positioned.
• Clean the bolts and nuts of the sprocket.
• Apply blue Loctite on 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.
• Replace the wheel on the bike, ensuring the chain is properly aligned and tightened according to the manufacturer's specifications.

Features:

• 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