The 1999 DirtMaster Big Bertha 1999 is a 34 pound a freestyle/bmx bike with a chromoly frame. The frame comes in colors like red, black and yellow.

The Big Bertha 1999 is a is a fairly heavy bike at around 35 pounds. It was released in 1999 and costs $569 brand new. The Big Bertha 1999 is fully rigid.


The Big Bertha 1999 comes with various freestyle bike components, including an Odyssey Bang stem and a threadless, Aheadset SE-1 F/S Odyssey Gyro headset.


The Big Bertha 1999 is a single-speed and has.


It comes with Kenda K-841 tires (20in x 2.25in) and Alex Supra rims.

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Type Freestyle, BMX
MSRP $570
Year 1999
Alt. Names BigBertha, Big Bertha