Cheapest option would be Topeak Tri Bag. Can be had for £8 at Halfords - holds enough for 150k of snacks, will need refilling anything over that.
Cheers! Certainly budget conscious. Might look a bit mad with that height on my road bike but I'll give it a shot I reckon
@yoshy started
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Cheapest option would be Topeak Tri Bag. Can be had for £8 at Halfords - holds enough for 150k of snacks, will need refilling anything over that.