The Caloi Sigma is a 29,28,26,24,27,25 pound a full-suspension mountain bike with an aluminum T6 / Alcoa / Easton Elan frame. The frame comes in colors like red, black and copper.

Originally released in 1995, there are 5 versions of this bike.

Components

The Sigma comes with Shimano components, including an aluminum, chromoly, Kalloy Caloi stem, a threadless, Aheadset, Tange Ahead Dia-Compe S Series Aheadset headset and grip-shift, Shimano STX-RC RapidFire SRT-600 shifters.

The Rock Shox Indy C, Caloi and Manitou Comp fork has a true suspension.

Drivetrain

The Sigma has 8,7 speeds and has a Shimano derailleur.

Wheels

It comes with Maxxis Kenda tires (26in x 2.1in) and Weinmann Zac 19, Rigida LASER Mavic 221 rims.

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Specs

Type Mountain
Year 1995, 1996, 1997, 1998
Alt. Names Sigma, SigmaFS, Sigma FS, SigmaDH4, Sigma DH4, SigmaDH-4, Sigma DH-4