Originally Posted by
MKIV987
I have a 10-speed Rival rear derailleur and just installed a Shimano 105 11-28 cassette this weekend running an Ultegra chain. When I shift up to the 28-tooth sprocket, there's so little clearance between it and the RD pulley that the chain jump and skips.
Was Rival not meant to take a 28-tooth top-end? It seems pretty odd that this would happen.
Rival rd accommodates 28t. My Rival rd mates perfectly with the SRAM 1070 cassette (shifting from 25t to 28t). No problems using stock cables that came with shifters and yokozunas. Using a 1071 chain.
Did you try the usual barrel adjuster tweaks? B screw? Worn chain?