Hello All, I have a 46 inner and 49 outer ring on a 1959 Magistoni crank with Simplex arms. The 46 inner is shot, and i want to replace the outer ring with a 53 I have and use the 49 for the inside. 2 questions: 1) the 49 I switch to the inside will NOT have the recess for the bolts. If tightened will that work OK or be a problem 2) will that gearing work with a Gran Sport, same era, front and rear derailleur?
Thank you for your help.
Jerry Tenenberg
Encinitas Cal, USA