SRAM v Shimano
I presently have Shimano Ultegra 6600 groupset with a 12-27 rear cassette which I really like. Shimano have stopped making this casssette.
Will the SRAM cassette 12 - 27 be compatible with my present set up? Is this SRAMs 'equivalent' to ultegra range.
(I don't much want to change to the new Shimano 6700 range 11- 28 casette - too wide - and there is some doubt re compatibility anyway I believe)
Generally Shimano and SRAM drivetrain components are interchangeable. However, I have just fitted a 11-23 PG1070 cassette to an SRAM S30 Al Sprint rear wheel to run on on my Rival equipped Boardman carbon and things haven't gone smoothly. I am using an Ultegra directional chain and when running on the 11 sprocket the chain catches on one of the teeth on the 12 sprocket. Each sprocket has a tooth that points slightly towards the adjacent smaller sprocket to aid in upshifting and it is this tooth that the chain catches on. Doesn't happen on the other sprockets though and an older 11-28 OG1070 is fine.