Soldato
I think the bike water bottle cages are a standard size. I have bought a few cages and bottles in the past and never looked to check their size (apart from ML of water for the bottle) and never had any issues.
Chain reaction cycles used to do free delivery over £12 Seems they do £2.99 now for anything I added to my basket. If you want another tube, you could buy the one below. I have used continental tubes and never had a problem. Again, I normally just buy what is on offer! I have the below water bottle too. It is not cheap but it does keep your drink cool (or hot) as it is insulated. You might be able to find it cheaper else where, I can't be bothered to look
Continental Tour 26 Tube
Camelbak Podium Chill 710ml Water Bottle SS19
Chain reaction cycles used to do free delivery over £12 Seems they do £2.99 now for anything I added to my basket. If you want another tube, you could buy the one below. I have used continental tubes and never had a problem. Again, I normally just buy what is on offer! I have the below water bottle too. It is not cheap but it does keep your drink cool (or hot) as it is insulated. You might be able to find it cheaper else where, I can't be bothered to look
Continental Tour 26 Tube
Camelbak Podium Chill 710ml Water Bottle SS19