Sturmey-Archer is a legendary name in bicycle engineering, renowned for over a century of innovation and craftsmanship. We design and manufacture premium drivetrain and transmission components that set industry standards for reliability and performance. Our extensive product range includes iconic internal gear hubs, precision shifters, cranksets, sprockets, and accessories. Trusted by leading global bicycle manufacturers and widely specified in the aftermarket, Sturmey-Archer products deliver exceptional quality, durability, and timeless engineering excellence for riders worldwide.
The Sturmey Archer HSA284 is an original ball cage assembly featuring seven precision 6.4 mm (¼ inch) steel balls. It ensures smooth and reliable bearing operation in classic Sturmey Archer 3- and 5-speed internal gear hubs such as the AW, SRF3, and SRF5.
- Ball size: 6.4 mm (¼ inch)
- Contains 7 steel balls
- Outer diameter approximately 26.3 mm
- Compatible with 3- and 5-speed hubs
- Suitable for various Sturmey Archer hub models, including: AW and SRF3 (3-speed), BSR, BWR, SRF5, and similar types
