SunRace MF-M2A Freewheel — 7-Speed, 14–28T (Silver)

The SunRace MF-M2A freewheel is a dependable 7-speed threaded freewheel designed for recreational, hybrid, commuter, and older mountain bikes that use traditional screw-on hubs.

Constructed with steel sprocket rings for durability and polymer spacers to reduce noise and weight, the MF-M2A delivers smooth, predictable shifting for everyday riding. Its robust design makes it a common service replacement for worn or damaged freewheels on entry-level and older drivetrains.

With a versatile 14–28T gear range, this freewheel provides easy climbing gears while maintaining practical spacing for flat terrain and casual riding. It serves as a direct functional equivalent to popular Shimano 7-speed freewheels.

Product Details

• 7-speed threaded freewheel

• Durable steel sprocket rings

• Polymer spacers for smoother operation

• Approx. 433g

• Shimano equivalent: MF-TZ21 / MF-TZ20

Specifications

• Speeds: 7-Speed

• Gear Range: 14–28T

• Color: Silver

• Hub Type: Threaded freewheel (not cassette)

Best For

• Older MTB, hybrid, and commuter bikes

• Entry-level drivetrains using threaded hubs

• Service replacements and drivetrain repairs

• Riders prioritizing durability and value