Help me make a decision

[Smurfy]

Okay guys, just worked out that 48/17 is almost the same as 34/12

As I require a tensioner will 34/12 be okay chainwrap wise? I have a new 34t chainring you see

Thanks

Think you might find the wear is rather extreme on a 12T.

 

[Paul H LFC]

Thanks tim will go for the 42t ring then