Extralite ExtraBolt 3.3 cassette lockring. 100% CNC made, aluminum 7075 T6, available in several anodized colours with laser etched graphics. Only 3.4 gr. weight, compatible 11T and 12T first gear both and Shimano 9-10-11 s and Sram 9-10 s.

Extralite ExtraBolt 3.5 cassette lockring. 100% CNC made, aluminum 7075 T6, available in several anodized colours with laser etched graphics. Only 3.9 gr. weight, compatible 11T and 12T first gear both and Shimano 9-10-11 s and Sram 9-10-11 s.