ive pretty much narrowed it down to cassette/chainwear!
the reason for this i had a pg990 cassette fitted in november – it endured alot of miles over a shitty winter….i came to check the chain in probably febuary (never checked before) and low and behold it was worn, easily went into the 1.0 markers and .75 with ease…..
i changed the chain, not really thinking it would be that worn that i couldnt use another chain….
so this creaking continued….
new xt chain on, and under 1 month easily, the chain is almost at 1.0 again 🙁 proving the cassette is ko’ing the chain….
i have been a bit crappy with lubing the chain also, so the other day (trying everything else imaginable to cure the creak, as i knew it was drivetrain related) i decided to clean the chain and and give it a PROPER lubing (right in each roller, as it was stiff to bend in places)…the creak continued for about 10-20 mins after continoulsly riding, then miraculously stopped the lube had obviously worked its way into the rollers and lubed it all….it hit me instantly that the chain was buggered and the reason was it was stretching extremely fast and not being lubed either….so a leason learned, must check chain wear much quicker to avoid this, and a new chain definitely wears with the old cassette in super fast fashion….i have also being running the same powerlink for the last 4 chains, not even beginning to think that this may be the cause too as its super worn!
so always check the most obvious of things and eliminate everything else!
im wearing this chain/cassette into the ground, as the noise has now gone since ive given it a super lube too!
anyways boring story, but a true one 🙂