FEATURES: Black colored steel

Four pole configuration for maximum efficiency at high RPM

Provides instant visual reference of proper coupler height

Two Plastic Rims

Rear balance weight

Tekno RC TKR6146B Up-Travel Shock Cartridge Set Revised EB48.3 NB48.3 Sledge Parts FEATURES: Black colored steelTekno TKR6146B Up Travel Shock Cartridge Set Revised EB48. 3 NB48. 3 Product Description: This is TKR6146B Shock Cartridge Set (CNC, Delrin, revised, all 16mm shocks) This shock cartridge set has been revised from TKR6146 by reducing the height of the bottom guide for added up travel, resulting in better bump handling and jump landing. The original version will remain available for those that prefer the extra shaft support. Center and top guides