Trying to diagnose a creak on my road bike, and figure out what I can do about it.
A few weeks ago I started noticing a creak coming from my road bike (this one
- the creak gets sounds like its coming from the cranks
- it's there when I pedal and gets louder the harder I push the cranks
- it's there in all gears and when pedalling with either foot on its own
- it's not there when I spin the cranks on the workstand, coast or pedal backwards
If this were an older bike then I would be 99% sure that the bottom bracket bearing need replacing / regreasing, but I have only done about 1500 miles on this bike from new - this doesn't seem like enough to require a BB service. On the other hand, I have been riding it daily in some pretty rough weather (the UK has had record-breaking amounts of rain this summer) so maybe some water could have sneaked in somewhere.
Is there anything else I could tighten/loosen/regrease before I pin the blame on the BB? And if the BB is the culprit, how likely am I to be able to fix it myself? It's a carbon frame, so I suspect that there may be torque tolerances involved which I am ill-equiped to deal with.
Also: I noticed when I put the bike up on the workstand to take a look that there are no dust cap s or anything on the crank axle. The right-hand side is a gaping hole, and on the left-hand side you can see the bolt (pics
). Should there be something covering these?