The AMP Research B4 LX is a 25,24 pound a mountain bike with an aluminum and steel T6 / AMP / Alcoa 6013 T6 frame. The frame comes in colors like red, polished and ball-burnished.

It was first released in 1995 and again in 1996. The B4 LX has frame suspension with 2.75in travel and has saddle suspension.

Components

The B4 LX comes with Shimano Deore LX components, including a Control Tech stem, a Shimano Deore LX headset and Shimano Deore LX RapidFire shifters.

Drivetrain

The B4 LX has 8 speeds and has a Shimano Deore LX derailleur.

Wheels

It comes with Hutchinson tires (26in x 1.95in) and Sun Metal CR18 Mavic M231 rims.