Mopeds are not cycles. M1 is a 3 lane m way, where very occasionally speeds of 70mph are capable every now and again.
Blackwall tunnel max speed is 30mph, photo posted clearly show cycles prohibited this includes electric assisted bicycles. Mopeds are not bicycles, you cannot cycle on a moped.
Despite some maps showing the full route from Hackney Wick to Kidbrooke as motorway, including the river crossing itself, neither the tunnels themselves nor the northern approach road were ever part of the motorway.
designation of moped changed in 1977, it at that point it could be driven by pedals or the motor, mopeds since that date are no longer pedal driven, moped definition is designated now by speed and engine size restrictions. Main difference with cycle and moped being to ride a moped you need a driving licence, tax insurance, as per any other motorcycle and legally have to wear a helmet. mopeds are classed as motorised vehicles even pre 77, even though they can be propelled by pedal or engine.