Shorten or replace bicycle chain? The chain on my internally geared hub bicycle is now too long even when the rear wheel is entirely pulled back. How do I tell whether it's sufficient to shorten the chain by removing some links, or if I need to buy a new chain altogether?

I've done 14335 km (8907 mi) and the chain is a Rohloff.
If this chain has been on it for nearly 9000 miles - I'd suggest a new one!

You could shorten it, but the wear is on the link connectors, so the sapcing is going to be wider than it should be - thus wearing the sprockets!