The Shimano RT-EM910 Steps Rotor with External Lockring is a high-quality bike component designed for electric bikes. Made with durable angora material and weighing 160g, this silver rotor has a thickness of 20.5mm and a length of 203mm. Compatible with Shimano STEPS brand systems, this part is essential for maintaining optimal performance and safety on your electric bike. With an RRP of £86.99, this rotor is a reliable and essential addition to your cycling gear collection.