Jerry Whittle from O'Fallon Illinois on 11/24/2024 1:50:59 PM:
Both are rough on a chain. If it's wet, cleaning and lubing daily might help. If dry, I'd just clean and lube it once halfway through if you're doing the entire trail.
I recommend putting on a cheaper new chain shortly before the trip. Then just replacing the chain shortly after the end. That's what I've done a few times including twice on a tandem. The tandem is like changing three chains.