The Proton is a classic geometry bike with a 21” top tube, medium 13.6” rear end, big 8.5“ bars and 32mm. offset fork. The bike for the all around rider, trails rider, taller riders or simply riders that like bigger and more stable bikes.

Specs -
21” top tube | 13.6” rear end | 8.5” bars height | 32mm offset fork
4130 Chromoly main frame, bars & forks steer tube
Removable brake mounts (1)
Trebol 6061 double wall rim & sealed Trebol hubs
Flybikes Dos 20 seat with Tripod system
Trebol 6061-T6 alloy top load stem
Trebol 4130 chromoly D shape cranks with sealed Spanish bb
Trebol 25t 4130 chromoly sprocket
Flybikes Ruben tires, grips & pedals

(1) U-brake, cable and lever included

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