• Hi Chris, some quick answers below

    1. Not really, since a puncture repair kit needs a pump to go with it and I'd want to take them off when the bike is parked.
    2. Additional to what? I can fit everything I need in a pannier or saddlebag, so there's no particular need for an additional compartment.
    3. Pannier, Carradice saddlebag, mini under-seat pack, pockets, very occasionally a rucksack, I also have a water-bottle style box that can fit in a bottle cage.
    4. Weight, leading to sluggish bike.
    5. Firm connection to bike and keeping stuff in, waterproofing, robustness.
    6. Reflectivity, places to attach lights, additional internal compartments (if it's large) in order to separate out smaller/fragile/flat items.
    7. I'd err on the side of larger, but it's difficult to know as I use different storage for commuting and shopping (panniers), fun fixed rides (Carradice) , and longer training rides (mini under-seat pack)
    8. Black, red or blue (+ reflectives)
    9. See question 6
    10. Detachable

    Best of luck with your project. It's a tough brief as there are lots of different solutions for carrying things on a bike and "additional" storage would need to fulfil a particular need, like long-distance riders wanting energy food in a top-tube bag.


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