The Bridgestone MB-4 is a 28,27 pound a mountain bike with a steel and chromoly Tange / Ishiwata TB frame. It was first released in 1993 and again in 1994. The MB-4 is fully rigid.
Components
The MB-4 comes with Shimano and Shimano/Sugino/Dia-Compe components, including a Hsin Lung MTS, Ritchey Force Tawain stem and Shimano Optical Gear Display shifters.
Drivetrain
The MB-4 has 7 speeds and has a Shimano derailleur.
Wheels
It comes with Ritchey tires (26in x NaN) and Araya CV-7 Ritchey Vantage Expert rims.