Hydration pack for 50 mile cross country mountain bike race?

I am replacing my old Camelbak... In a couple of months I will be racing a couple of 50 mile races. I can carry two water bottles on my bike. So I do not need the largest Volume hydration pack for water. It would be nice to have storage room in the pack for, repair parts. Any suggestions would be greatly... show more I am replacing my old Camelbak... In a couple of months I will be racing a couple of 50 mile races. I can carry two water bottles on my bike. So I do not need the largest Volume hydration pack for water. It would be nice to have storage room in the pack for, repair parts. Any suggestions would be greatly accepted. Thank you
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