The TKR6061T Steel Ti-Nitride X-Long Rear Shock Shafts (2) are upgraded replacement shock shafts designed for Tekno RC 1/8 scale platforms, including the EB48, NB48, ET48, NT48, MT410, and SCT410 series. These are extra-long rear shock shafts made from hardened steel with a Ti-Nitride (TiNi) coating, which reduces friction inside the shock body for smoother suspension movement and more consistent damping performance. The coating also increases surface hardness and wear resistance, helping the shocks stay smoother for longer under high-impact racing and rough off-road conditions. This set is intended for use in rear shock assemblies only and is a direct replacement part for compatible Tekno RC buggy, truggy, and truck platforms that use X-long rear shock configurations.