The SunRace U-Series cassettes are exactly what you need. Available in 11, 10 and 9-Speed versions,
these cassettes are incredibly durable and provide smooth shifting thanks to the unique sprockets
shape. They are also compatible with cues and linkglide.

The Future of E-bikes: Automatic Shifting with Sturmey Archer
The e-bike industry is constantly evolving and with the introduction of the 3-speed automatic rear hub from Sturmey Archer a new standard is set in electric cycling. This innovative system combines advanced technology with reliability and ease of use, which ensures an optimal riding experience. Thanks to automatic shifting, cycling becomes more comfortable and efficient than ever.

The SunRace 12-speed road cassette is designed for demanding road cyclists looking for versatility and performance. Available in three variants – 11-30T, 11-34T and 11-36T – this cassette offers a wide gear range for both smooth roads and challenging climbs. Thanks to the precisely matched gears, the cassette shifts smoothly and efficiently, even under load. SunRace combines lightweight construction with durable materials, making this cassette a reliable choice for riders who want to get the most out of their ride.

• Specifically designed for E-Cargo bike or commercial heavy duty usage.
• 4-Speed with gear ratio of 352%.
• Large even gear steps of 52%.
• Big gears made from forged or machined chromoly steel.
• M12 threaded axle for heavy loading.
• 5 cartridge bearings for durability.
• Standard 6-hole disc rotor.Rotary gear selector with no protrusions outside the frame
• Aluminum hub shell.

The SunRace U-Series cassettes are exactly what you need. Available in 11, 10 and 9-Speed versions,
these cassettes are incredibly durable and provide smooth shifting thanks to the unique sprockets
shape. They are also compatible with cues and linkglide.

The Future of E-bikes: Automatic Shifting with Sturmey Archer
The e-bike industry is constantly evolving and with the introduction of the 3-speed automatic rear hub from Sturmey Archer a new standard is set in electric cycling. This innovative system combines advanced technology with reliability and ease of use, which ensures an optimal riding experience. Thanks to automatic shifting, cycling becomes more comfortable and efficient than ever.

The SunRace 12-speed road cassette is designed for demanding road cyclists looking for versatility and performance. Available in three variants – 11-30T, 11-34T and 11-36T – this cassette offers a wide gear range for both smooth roads and challenging climbs. Thanks to the precisely matched gears, the cassette shifts smoothly and efficiently, even under load. SunRace combines lightweight construction with durable materials, making this cassette a reliable choice for riders who want to get the most out of their ride.