Just over a week or so ago after riding in possibly the muddiest race I've ever entered , I was conscious that I needed to clean and lube my bike before the dirt and grime started to do too much damage.  unfortunately for me the jockey wheels on my SRAM X-9 rear derailleur were not salvageable and completely seized.

Just over a week or so ago after riding in possibly the muddiest race I've ever entered , I was conscious that I needed to clean and lube my bike before the dirt and grime started to do too much damage.  unfortunately for me the jockey wheels on my SRAM X-9 rear derailleur were not salvageable and completely seized.

This left me with two options, strip them down and try to repack & grease the bearings or purchase replacements.  As you can see from the pic below the teeth in the top wheel had practically worn to small points over time so I decided new would be best and set about searching for 11t replacements.

I decided upon these Lerway AEST Aluminium Jockey Wheels in red as they looked the part, should be harder wearing than the standard plastic X-9 wheels and shipped for under $9 each.

For anyone who has had a seized Jockey wheel it pretty much renders your whole drive train unusable.  Thankfully, however, they are easily switched out.  With the wheel off remove the chain, and undo the two jockey wheel bolts, the bottom one is on the outside and the top on the inside.  Replacement is reversal of removal and not much more than a 10 minute job.  I can now get back on the trails!