Priced and styled right. The new Rant Ikon sprocket is a lightweight 25T sprocket that we built from quality 606-T6 alloy. Among the many lightening holes, you will find 4 Guard Ports, making the Ikon compatible with the Shadow Sabotage Guard (sold separately). Just grab a Sabotage Guard and pop it on or run without, it’s all about options. KEEP IT FUN! - 6061-T6 alloy - Sabotage guard compatible (GUARD SOLD SEPARATELY) - 15/16” bore (24mm compatible) - 19mm & 22mm adaptor - Weight: 2.3 oz.