Ball Bearing Chain Tensioner - 4 Bolt

Maintain smooth, consistent chain tension with a durable ball bearing tensioner built for bicycle engine kits. Designed to reduce friction and wear, it helps improve drivetrain reliability under load.

Features:

• Ball bearing roller for smooth, low-friction operation
• Maintains proper chain alignment and tension
• Heavy-duty construction for durability
• Reduces chain slip and premature wear
• Compatible with most bicycle engine kits