The Shimano 42t 7/8v 4-arm chainring Y1KN98050 is a high-quality bicycle component that ensures smooth and efficient shifting. With its 4-arm design, the chainring provides a firm and reliable mounting. This chainring is suitable for 7 and 8-speed bicycles and has a 42t cog, allowing you to enjoy an optimal gear ratio. Upgrade your bicycle with this high-quality Shimano chainring! Product specifications - Model: Shimano 42t 7/8v 4-arm chainring Y1KN98050 - Suitable for: 7 and 8-speed bicycles - Cog: 42t - Mounting: 4-arm design - High quality - Improved shifting performance - Durable and reliable