I have owned my much loved Giant Rapid 2 2011 (Rapid 2 (2011) | Giant bikes UK & Ireland official website | UK / Ireland) for the past several years. Unfortunately, over time, the bottom bracket has developed a little play. I have an excellent cycle shop near me who are happy to replace the part for £35 however I would first like to have an attempt myself so that I can learn more about bike maintenance.
I know I have a Shimano R453 crankset and “BC 1.37x24” is printed along the bottom bracket.
Having scoured the web I have worked out that I will need Shimano Tiagra 4600 Bottom Bracket 68mm in an English thread (Shimano Tiagra 4600 Bottom Bracket | Chain Reaction Cycles).
Would anybody with more experience be able to confirm if this the correct replacement and/or recommend a suitable replacement/upgrade.
Thank you all for your responses. I thought I would give a quick update to help others who may find themselves in the same situation as me.
A friend lent me his ICE bike repair kit which had all the tools I needed. I also noticed on the link it stated my BB was an octalink however this did not look right. Anyhow I fitted the Tiagra 4600 BB and it worked perfectly!!. The only thing I did was kept the plastic o ring and refitted on the left side.
Last edited by gaggarwal1981; 08-19-14 at 02:56 PM.