Recon's series of aluminum cassettes are among the lightest available in the world. They feature a steel 11 tooth cog mated to a single hollow machined aluminum block of the remaining 9 cogs. This judicious use of material in a minimalist design produces the lightest possible "race day" cassette, ideal for use in hill climbs or special events. All cassettes include a lightweight aluminum lockring.
|Compatibility||Shimano Dyna-Sys 10 Speed|