The 1997 Caloi Sigma is a 26 pound a mountain bike with an aluminum Alcoa T6 frame. The frame comes in colors like polished, Matte  Blue and Matte  Black.

The Sigma 1997 is a is an average weight bike at around 25 pounds. It was released in 1997 and costs $729 brand new. The Sigma 1997 is fully rigid.

Components

The Sigma 1997 comes with Shimano Deore LX/STX components, including an aluminum stem and a threadless Dia-Compe Aheadset headset.

Drivetrain

The Sigma 1997 has 8 speeds and has a Shimano derailleur.

Wheels

It comes with Maxxis tires ( x in front and x rear.) and Weinmann Zac 19 rims.

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Specs

Type Mountain
MSRP $730
Year 1997
Alt. Names Sigma