The SM-RT81 Lock-Ring with disc from Shimano is a high-quality accessory specifically designed for use on road and mountain bikes. This lock ring is part of the bicycle components product family and provides a reliable attachment for brake discs with a Centerlock system. Made in France, the SM-RT81 ensures high quality and durability, which are essential for demanding cyclists. Its universal fit and ease of handling make it a practical choice for various bicycle models. The lock ring is not only functional but also aesthetically pleasing, as it comes in a sleek black that seamlessly integrates into the bike's design.

• Suitable for road and mountain bikes
• Centerlock attachment system for easy installation
• Made in France for high quality.