I’ve got a couple of BBs, a spare chain if I spot a bargain I’ll usually order one and a fair old selection of powerlinks, 9 and 10 speed. . I’ve got about five gear inners and enough bits of outer to sort out any weekend disasters. I also have a box containing hope shims, various cup washers for brake mounting, various types of spare brake mount adapters, rotor bolts, caliper bolts in about five different flavours, chainring bolts, three starfangled nuts, several topcaps and bolts, cable ends, outer ferrules, lockrings off old grips, a couple of sets of bearings, even though only the turbo bike has cup and cone bearings, and it’s on a borrowed wheelset anyway, spare wheelset, several saddles, various cage pedals, some flat pedals, some spd pedals, bar end plugs…