If you’re bringing a bike, verify cycle policies on trains; some lines restrict non-folding bikes

https://spenceraskt604.lucialpiazzale.com/heathrow-drop-off-charges-and-pick-up-locations-avoid-fines-and-hassles

If you’re bringing a bike, verify cycle policies on trains; some lines restrict non-folding bikes, so consider airport buses with luggage racks instead.