The RPM Standard Sprocket Hub is CNC machined from aircraft quality billet 6061 T-6 aluminum and has Steel Seal Surface that is heat treated and nickle plated which is much more durable than other aluminum choices and unique to RPM.
For RPM A10-120-A or B axles ONLY. To determine if your axle is an A or B, check the serial number. Example: xxxx-120A-xxx or xxxx-120B-xxx. If you axle does not have a letter after 120, like: xxxx-120-xxx, use part number A13-120.
Includes: Steel Seal Surface, Heat Treated & Nickle Plated (X 1) Part #: EA0198 Snap Ring (x 1) Part #: B0060
