Joined: Apr 2010
Posts: 13,501
Likes: 995
From: Boston-ish, MA
Bikes: 72 Peugeot UO-8, 82 Peugeot TH8, 87 Bianchi Brava, 76? Masi Grand Criterium, 74 Motobecane Champion Team, 86 & 77 Gazelle champion mondial, 81? Grandis, 82? Tommasini, 83 Peugeot PF10
Do you want to replace the Simplex derailleur or switch to something else? The Suntour might shift better and you could move the other good Simplex pulley over, I believe. If you did that the shift levers would have to be moved through larger angles than you would be use to, but that's okay. No spoke damage?
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Real cyclists use toe clips.
With great bikes comes great responsibility.
jimmuller