This might be helpful to know for anyone about to change their chain and sprockets.
I changed mine out for some JT sprockets and a DID gold chain, all standard toothing and 525.
I did an initial 10 miles after fitting, and that made the chain slack, and in need of adjustment. Which is understandable.
I then set out on a 700 mile journey.
About 200miles in i checked the chain tension to find it very slack. So i took it easy for another 150 miles until i could get it tensioned again at a mates house.
On my return journey it slackened again after 180 miles of very spirited riding on the Welsh roads.
Eventually when i returned home, and a further 200 miles, it needed another slight adjustment and seems to have settled down now..
I was not aware of the amount of initial stretch and shakedown fitting new chain and sprockets would present.
So note to self;
If intending to set out on a long journey don't fit a new chain and sprockets set! At least not a few hundred miles afterwards anyhow..