For me, if a bike continually frustrates me when riding then something has to change. Repair/replace/sell/toss. Otherwise what's the point of having it? (other than a wall hanger)
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59 Allegro Special -- 72 Bob Jackson -- 74 Motobecane Grand Jubile -- 74 Sekine SHS 271 -- 80 Nishiki International
85 Shogun 800 -- 86 Tommasini Super Prestige -- 92 Specialized Rockhopper -- 17 Colnago Arabesque