Wolftooth 42

[Balooba]

I got a Wolftooth 42 expander on my 10 speed XT cassette. I have the 16 on as well (minus the 15/17 of course  ).

 

Now : When I engage the 42 my derailleur scratches the cassette on slightly. Got a guy here on the hub that has an expander. Will this solve my problem or is there an easier solution?

[Balooba]

[Jakkals.]

with this, your b-screw wouldnt need to be in all the way...I'm sure it will sort out that problem.

[shaper]

just change the b-screw for a longer one which you can pick up at builders warehouse

[Wannabe]

Incase you not sure what is meant by longer B Screw. This is where you find it.

Insert longer screw, and screw it in untill there is about 2mm between the cassette and jockey wheel, when on the biggest cog.

 

http://i.imgur.com/35CrJUN.jpg

[Balooba]

Sweet.

 

By inserting a longer screw, will this not put unnecessary tension on the derailleur and chain?

[shaper]

Sweet.

 

By inserting a longer screw, will this not put unnecessary tension on the derailleur and chain?

You are moving the RD out by about 1cm with a longer screw, just enough so that it does not catch on your 42T... so no will not unnecessarily tension your drive chain

[Balooba]

[Jakkals.]

it alters the shifting...but it works

[Balooba]

So for smoother shifting it will be best to get this link?

 

Will the longer screw affect shifting to all the gears or only to the 42?

[divernick]

The b-screw controls how far the upper derailleur pulley is from the largest cog on the cassette. Shift into the 42 and observe the clearance. Turn b-screw clockwise until the upper pulley / jockey wheel clears the cog. Job done.

[Balooba]

Thanks. Done and dusted.