These arms have a new design that shifts the shock mounting point out towards the wheel for added high speed stability. These are backwards compatible with the original EB/NB but must be used in conjunction with the new front shock tower (TKR5269). Original rear hubs are NOT compatible. These must be used in conjunction with the newer .3 hubs (TKR5199/TKR5199A).
Note: these arms are not left right compatible.
