Topic starter
Hi,
I am looking to replace my chainrings. I have a Shimano 53 42 SG. It also says narrow chain. I am bit confused as to the choice, I have seen 130 mm bolt but not sure what mine is?
Do I have a double or compact? (New to this!)
I hope you can help.
Also any good places online to buy.
Thanks in advance.
Posted : 19/10/2013 3:21 pm
http://sheldonbrown.com/gloss_bo-z.html
http://www.sjscycles.co.uk/bolt-circle-diameter-size-chart-artlbcdchart/
Posted : 19/10/2013 3:33 pm
Ps: why you replacing them? (you may also need to replace either the chain or the cassette or all of it)
Posted : 19/10/2013 3:37 pm
Topic starter
They are old and the chain is slipping.
Thanks
Posted : 19/10/2013 3:39 pm
ANy 130mm ones will do (this is non compact)
Posted : 19/10/2013 3:39 pm
Topic starter
Ok great. Thank you. Already replaced cassette and chain.
Posted : 19/10/2013 3:41 pm