which derailleur diameter do I need for klein attitude 31,6

speedking

Retro Newbie
Hello!

which diameter of the front derailleur do I need for a klein attitude with 31,6 seat post?

thanks and many greetings
 
From memory 34.9 sure others will know for certain.
And hello
 
Yep, deffo a 34.9. Now, more importantly, get some pics of the bike up for our inspiration!

Cheers
Craig
 
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