>>1770719btw, removing a cassette is easy.
They're extremely difficult/impossible to clean in place, and doing so you'd risk flushing grit into your hub bearing.
You need a cassette tool and a chain whip. Chain whip holds it in place, cassette tool unscrews. Wa La.
Then you can clean it with degreaser + spraying with water, or solvent (kerosene etc) + toothbrush.
Putting a new chain on a dirty drivetrain is ridiculous and it will run much nicer when everything is clean.
This is also a chance to have slightly wider gearing. If you're serious about touring that might be very smart. You probably have 11-28 now, and you could switch to 12-32
