JT SPROCKETS ultra-light aluminum sprocket 486 - 520 (Manufacturer part number: JTA486.49BLK): a sprocket designed to replace the rear transmission element on roadsters and sport bikes equipped with a 520 pitch chain. Its design incorporates the materials and machining specific to JT Sprockets for a reliable and lightweight replacement part.
- Material: aerospace aluminum 7075-T6 (Ergal)
- Color: black
- Number of teeth: 49
- Chain pitch: 520
- Type: standard / direct mount
Ideal for replacement due to wear or for modifying the gearing, this ultra-light sprocket minimizes unsprung inertia without promising unverified precise effects. It fits into standard 520 sprocket-chain combinations and adapts to the flanges and bolt patterns designed for this pitch.
Examples of frequently mounted models: KAWASAKI NINJA 250 R (EX250K) 2011–2012 (250 cc). Before purchasing, check compatibility with your motorcycle (bolt pattern, number of holes, and plate mounting) to ensure a secure fit.
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