The EK CHAIN 520SROZ2 14/45 chain kit — standard sprocket is a set designed for roadsters seeking a robust and easy-to-maintain transmission. Coming from the SRO series, this O-ring chain offers a good balance between cost and longevity, while maintaining the manufacturing quality characteristic of EK.
- Type: 520SROZ2 chain kit with 14-tooth sprocket / 45-tooth standard sprocket
- Number of links: 112
- Pitch: 520
- Sprocket material: Steel
- Color: Steel / Steel
- Relative lifespan: 2400 (manufacturer's value for 100 links)
- Weight: 1.76 kg for 100 links (indicative weight provided by the manufacturer)
The chain features a reduced drilling that decreases mass and thermally treated steel alloys, characteristics that contribute to its strength. The O-rings protect the rollers and reduce dirt penetration, helping to preserve the longevity of the drive train.
Usage tips: regularly check the tension, lubricate as recommended, and replace the complete kit when significant wear occurs to avoid damaging the sprocket and crown. Compatible with many roadsters — notably including the KTM 125 DUKE ABS (2023–2025) among frequently mounted models.
