DetailsSE Rings:~ Rings begin life as aerospace-grade 6061-T6 aluminum alloy for the middle and outer rings and 7075-T6 for the granny gears, then CNC-machined to the highest tolerances possible - one at a time. 8, 9-speed compatible. Made in USA.
- • Made in the USA
- • Latest CNC design and manufacturing
- • 6061 Aircraft Aluminum