The Shimano SF-MX30 Freewheel is a high-quality 18-tooth single freewheel designed for BMX riders who need reliability, smooth engagement, and long-lasting performance. Built to Shimano’s well-known standards, the SF-MX30 features a precise ratcheting mechanism for consistent power transfer and a strong steel body that can handle the demands of BMX racing or street riding.

With its 1/2″x 3/32″ chain compatibility, it fits a wide range of BMX drivetrains, as well as single-speed mountain bikes, kids bikes, and custom builds. Known for durability and dependable operation, it’s a solid upgrade or replacement freewheel for riders who want dependable shifting and strong engagement.

Key Features:

• 18T single-speed freewheel
• Compatible with 1/2″ x 3/32″ chains
• Hard-wearing steel construction
• Smooth and reliable engagement system
• Ideal for BMX, single-speed, and custom builds
• Shimano quality and long service life
• Easy to install and replace
• Condition: New old stock

Details