PBR Steel Noise-Free 2178 - 525 Gearbox output pinionRef : PBR00709A / 1077598002

PBR Steel Noise-Reducing Sprocket 2178G - 525: a road sprocket designed to minimize vibrations and the sound footprint of your transmission while maintaining the robustness of high-strength steel. Built around the RSS (Rubber Sprocket System), this sprocket combines a steel frame with rubber inserts injected into the perforations for shock absorption and chain noise reduction.

• Material: durable steel, suitable for road and intensive use
• Teeth: 16 teeth — for 525 pitch transmission
• Version: Noise-reducing (resistant rubber injection to delamination)
• Designed to provide a balance between strength and smooth operation

Installing a 2178G sprocket aims to reduce noise transmitted by the chain and limit the jolts felt at the swingarm and handlebars. Ideal for roadsters, street bikes, and large displacement motorcycles seeking more acoustic comfort without sacrificing transmission longevity.

Manufacturer reference: 2178G 16 18 NC — Chain pitch: 525.

Frequent compatibilities: APRILIA TUONO 1100 V4 FACTORY (2024), APRILIA TUONO 1100 V4 (2024), APRILIA RSV4 1100 ABS FACTORY (2024). Check compatibility with your model before installation.