Chain Tensioner Shimano ALFINE CT-S500

Chain Tensioner Shimano ALFINE CT-S500

The Shimano ALFINE CT-S500 is a durable and reliable chain tensioner designed specifically for bicycles equipped with Shimano Alfine internal gear hubs. Its double pulley design ensures smooth, quiet chain operation for everyday commuting and longer touring rides.

The tensioner can compensate for up to a 16-tooth front chainring difference and is compatible with rear sprockets sized 18–20 teeth. This makes it an ideal solution for frames with vertical dropouts where chain length adjustment options are limited.

• Use: City, Touring, Trekking
• Group: Alfine S7000 / S700
• Model: CT-S500
• Type: Double pulley
• Speeds: Single speed systems
• Compatible sprocket: CS-S500
• Compatible chain: CN-HG93, CN-HG71, CN-HG53
• Max. front difference: 16T
• Rear sprocket size: 18–20T
• Dropout type: Vertical
• Applicable dropout width: 5–9 mm