Rear cassette problems

dukegledhill

Hi all, some tech advice pls

when in the largest cassette at the back the derailleur is so close that the chain cant fit through properly, effectively meaning the teeth of the little derailleur wheel rub against the teeth of the cassette. make sense?

i can stop by holding the derailleur away from the cassette, but that's only when im not actually riding the bike lol. which bit do i adjust to rotate the derailleur away from the cassette?

thanks all
Duke

furrag

You need to adjust what is referred to as the B-adjustment screw.

You can find a fantastic tutorial here: http://bicycletutor.com/adjust-rear-derailleur/

dukegledhill

perfect, thanks alot

Duke