About Bike Chainsets & ChainTable of Contents Introduction Using 10 spd tiagra hollowtech chainset on a 9 spd drivetrain? Rear is making constant ticking/grinding noise whilst pedalling. Why does my chain keep slipping off when I go onto the small ring at the front? Front chainset and chain compatible issue. Q. Why does my chain keep slipping off when I go onto the small ring at the front, have had me cassette on rear & new chain? A. Your front and rear derailleurs probably both need adjusting so they are properly indexed and don’t over-shift. Page 4 of 5 1 2 3 4 5