Originally Posted by
joejack951
The chances of 11 speed rings fitting an old 9 speed crank and shiftly properly are slim to none. Shimano rings certainly won't fit as they are all 4 bolt rings vs. 5 from the 9 speed era. You might be able to find third party rings intended for a 5 bolt crank (whose, I don't know) and maybe it will work. One thing is for sure is that it will cost more than a Shimano 105 or Ultegra complete crankset out of the UK.
110 bcd....
NEW SRAM Red Yaw 34T 10 and 11 Speed 110mm Chainring | eBay
130bcd....
NOS Ritchey 53T 9/10/11 speed chainring 130 BCD | eBay
many more options for rings.... these were in the first 5 that popped up.... and apparently, 10/11 are the same as to tooth profile... at least according to these two manufacturers... 9/10/11 is listed as applications on several options...
to the OP... your original crank is well worth a try, it seems, eh? i'd bet it may work just fine... damn the rumors, full speed ahead!
the ders will need swapped to 11 sp.... unless you're an expert "Kludger"... i kinda like that term... probably a british or aussy term... cool!