The 1997 AMP Research B4 1997 is a 24 pound a mountain bike with an aluminum Alcoa 6013 T6 / AMP frame. The frame comes in red or Ball  Burnished.

The B4 1997 is a is a lighter bike at around 25 pounds. It was released in 1997. The B4 1997 has frame suspension with 2.75in travel and has saddle suspension.

Components

The B4 1997 comes with Shimano Deore XT components, including a Control Tech stem, a threadless Dia-Compe Aheadset headset and Shimano Deore XT RapidFire SL shifters.

Drivetrain

The B4 1997 has 8 speeds and has a Shimano Deore XT derailleur.

Wheels

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