Changing cassette

[Easytigers]

I've just changed my first cassette...proud moment! The buzz lasted all of 30 seconds until I had the realisation that I might now have to fiddle with the shifters etc (I'm crap at maintenance!) Will I need to re-index the gears? I originally had a 12-25 on and have changed to a 12-28 (shimano 2300)
Thanks

 

[smokeysmoo]

Will I need to re-index the gears?

Possibly not, but probably yes

Well done though, and if you do need to fettle your gears just watch this vid, it will demystify the witchcraft for you once and for all

 

[cyberknight]

should not need too but ............

 

[ianrauk]

You need to adjust the B screw on the rear derailleur to drop it down off the largest cog.
If it doesn't drop it enough then you will need a new (Longer) chain.

 

[slowmotion]

Possibly not, but probably yes

Well done though, and if you do need to fettle your gears just watch this vid, it will demystify the witchcraft for you once and for all

That's my favorite video as well.

 

[Easytigers]

Thank you! Think I've got it but will have a go when it's light tomorrow :-)