BSA Goldstar 650 reinforced chain kit

EK / PBR 520SRX2 Chain Kit – BSA Goldstar 650

This chain kit combines EK Chain, a globally recognized Japanese manufacturer known for the quality and reliability of its drive chains, and PBR, a European specialist in precisely machined steel sprockets and crowns. It is an ideal replacement solution for Royal Enfield 350 single-cylinder engines, offering an excellent balance between performance, durability, and cost control.

Recommended option – EK SLJ screw-on quick link
Don’t have a crimping tool? The EK SLJ quick link is the perfect solution. It allows for simple and secure installation without special tools, while providing a fastening equivalent to a rivet once tightened. More reliable than a clip link, it ensures safe and durable transmission. A practical and reassuring option to install your chain kit with confidence.

The EK SRX2 series is renowned for its optimal balance between strength and flexibility. Although long established in the EK range, it benefits from regular updates incorporating modern technologies to improve durability and smooth operation.

The EK 520SRX2 QX-Ring chain is a crimped chain, ensuring a permanent link fastening. Crimping provides significantly greater security than a clip link, minimizes the risk of accidental opening, and is especially recommended for daily road use, mixed riding, or two-up riding.

The QX-Ring technology preserves internal lubrication, reduces friction, and ensures even wear, while maintaining smooth and quiet transmission.

Specifications
• Quality: Original quality
• Chain quality: Reinforced
• Chain pitch: 520
• EK chain type: SRX2
• Seal type: QX-Ring
• Mounting type: Crimped chain
• Number of links: 106
• Tensile strength: 37.8 kN / 8500 lbs
• Crown material: Steel
• Crown version: Standard
• Sprocket version: Standard
• Chain color: Gold / Gold
• Usage: Mixed

Compatibility
• BSA Goldstar 650 (2023 +)

Kit Composition
• EK 520SRX2 QX-Ring crimped drive chain – 106 links
• Standard C45 steel crown – pitch 520 - Number of teeth = 47
• Standard JT steel sprocket 2355 – pitch 520 - Number of teeth = 16

Why choose this EK / PBR kit
• Recognized and proven brands
• Crimped chain for maximum safety
• Smooth, consistent, and quiet transmission
• Excellent resistance to wear and elongation
• Direct replacement for the original
• Suitable for daily and mixed use