JT. 420HDR 13/53 Reinforced - Standard Rear Sprocket Chain kitRef : JTC01681A / 3042695

Manufacturer reference: 4860235

JT 420HDR reinforced chain kit 13/53 - standard sprocket

Designed for urban riding and small 50 cc trails, this JT Drive Chain kit combines a reinforced 420 HDR chain with a 13-tooth sprocket and a 53-tooth steel rear sprocket. Together, they form a transmission ready to replace the original setup and restore a good gear ratio for most 50 cc engines.

• Chain: 420 HDR (black/steel) with XS-Ring seals to limit dust intrusion and maintain internal lubrication.
• Sprocket: standard, 13 teeth, machined for precise fitting.
• Rear Sprocket: standard steel, 53 teeth, robust construction for direct replacement.
• Usage: primarily intended for urban environments and 50 cc scooters/small enduros.

Before ordering, check the list of components and compatibility with your model: some vehicles may require different mounting or specific references. Examples of compatible models: GILERA SMT 50 (2005), DERBI SENDA 50 R X-RACE (2005), GILERA RCR 50 (2005).

Easy to install kit to replace a worn transmission and restore the drivetrain behavior without surprises. JT is recognized for its transmission components offering precise assembly and uniformity of parts.