This Shimano chainring is an Alivio FC-M415 type, suitable for ATB/MTB bikes. The chainring is silver and made of steel. With 32 teeth and 4 arms, it has a 104 mm BCD and weighs 114 grams. It's a reliable and durable chainring that's perfect for 3x 7/8-speed gears. The Shimano brand guarantees quality, and the Alivio model is a popular choice among cyclists. This chainring is compatible with various Shimano groupsets, such as the Alivio M340 and FCM341. It's a versatile and high-quality component for your bike. Product specifications - Brand: Shimano - Shimano group: Alivio - Shimano group code: M340 - Shimano model code: FCM341 - Model year: 2001 - Number of arms: 4-arm - Number of gears: 8 - Color: Silver - Toothing: 32 - Bolt circle diameter: 104mm - Chainring type: "ATB: Triple"