Front Derailleur
lastpubrunner
Posts: 108
Hi there,
I'd be grateful if anyone could please tell me what size band-on front derailleur I require for my 753 frame (SB7953). (I've become a bit paranoid about sizes, after my seatpost experiences).
Are there any lightweight front mechs thats anyone can recommend ? Will a modern mech such as the SRAM Rival or SRAM RED do the job ? (It would be for a double chainset).
I'd be using it with Simplex RetroFriction Shifters (non-indexed).
Thank you for any advice.[/code]
I'd be grateful if anyone could please tell me what size band-on front derailleur I require for my 753 frame (SB7953). (I've become a bit paranoid about sizes, after my seatpost experiences).
Are there any lightweight front mechs thats anyone can recommend ? Will a modern mech such as the SRAM Rival or SRAM RED do the job ? (It would be for a double chainset).
I'd be using it with Simplex RetroFriction Shifters (non-indexed).
Thank you for any advice.[/code]
0
Comments
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The most common size for steel frames was 28.6mm diameter.
Another option which can help avoid buying too many derailleurs is to get a "braze-on" mech, and there are clamp on adaptors which you can get in all sizes relatively cheaply. See here for a sample and they have a 28.6mm in stock:
http://www.chainreactioncycles.com/Models.aspx?ModelID=20255
If you already have a clamp on mech which is too large for the seat tube on your bike, you can even get shim bands to adapt them. I used some to fit a 31.8 clamp to a 28.6 tube and it worked perfectly.
http://www.universalcycles.com/shopping/product_details.php?id=12155&category=71
Mind you, your LBS will know all about these bits.Open One+ BMC TE29 Seven 622SL On One Scandal Cervelo RS0
