Chorus uses steel bolts instead of titanium. Campagnolo Chorus and Record front derailleurs are almost identical.A double chain ring front derailleur is lighter and will shift more quickly though. You can use a triple front derailleur with a double chain ring crank set. (50 - 30 = 20), you will need a front derailleur with a 20 tooth or more capacity. For example if you have a 39/53 chain ring combo, (53 - 39 = 14), you will need a front derailleur with a capacity of 14 teeth or more. , an excellent site for budding frame builders.Ī front derailleur's capacity is simply the difference between the number of teeth on your largest and smallest chain ring. A braze on type, front derailleur, bolts directly to that tab. Note how a tab, that is usually brazed on to the frame, extends from the seat tube. The green seat tube to the right sports a braze on front derailleur. You may use a Le Tour shim to mount a 32 mm clamp on front derailleur to a 28.6 mm seat tube. The clamp size usually matches the outside diameter of your frame's seat tube(not to be confused with the diameter of your seat post). Record 35mm Clamp-on Front Derailleur forĬlick on the underlined text to order online via ourįront Derailleur Type and Capacity ExplainedĪ Clamp-on, a Braze-on front derailleur and a braze-on seat tube tab.Ī clamp on style front derailleur literally clamps on to your bicycle's seat tube. Record 32mm Clamp-on Front Derailleur for Record Carbon 35mm Clamp-on Front Derailleur forĬampagnolo Record Front Derailleurs for three ring crank sets Mounting a 32 mm front derailleur on a 28.6 mm seat tube. Le Tour, 8 mm tall, front derailleur shim for Record Carbon 32mm Clamp-on Front Derailleur for Record Carbon Braze-on Front Derailleur for They are in Adobe PDF format and require Adobe Acrobat Reader 4.0 or higher to read or print.Ĭampagnolo Record Front Derailleurs for two ring crank sets
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