Sources

• Distances, the line of the road and fuel pumps: © OpenStreetMap contributors, Open Database Licence. Routes worked out with the Open Source Routing Machine.
• Heights: NASA Shuttle Radar Topography Mission, public domain, served by Open Topo Data.
• Golden Quadrilateral

  en.wikipedia.org · Encyclopedia

• Golden Quadrilateral Bike Trip on Royal Enfield | Budget Tips…

  yourplatform.in · Published guide · dated 11 July 2025

• Mumbai–Pune Expressway

  en.wikipedia.org · Encyclopedia

• Delhi-Mumbai Expressway: No bikes, scooters, three-wheelers allowed on Delhi-Dausa stretch;…

  dnaindia.com · News report · dated 19 February 2023

• Delhi–Mumbai Expressway

  en.wikipedia.org · Encyclopedia

• Ahmedabad–Vadodara Expressway

  en.wikipedia.org · Encyclopedia

• Mumbai Trans Harbour Link

  en.wikipedia.org · Encyclopedia

• Two-Wheelers Banned On Bengaluru-Chennai Expressway; Know Why

  odishabytes.com · News report · dated 4 March 2025

• Bengaluru–Chennai Expressway

  en.wikipedia.org · Encyclopedia

• Yamuna Expressway Complete Guide: Toll Rates, FASTag & Travel 2025

  tollguru.com · Published guide · dated 2025

• Good News For Commuters! Speed Limits On Yamuna Expressway To…

  news24online.com · News report · dated 13 February 2025

• Uttar Pradesh Expressway Safety Rules 2025: Complete Guide & Regulations

  tollguru.com · Published guide · dated 2025

• No toll charges for bikes and scooters, confirms NHAI

  autocarindia.com · News report · dated 27 June 2025

• Overage vehicle fuel ban in Delhi-NCR to be enforced from…

  newsonair.gov.in · News report · dated 9 July 2025

• Clarity or Confusion? Navigating the Dual Regime of Delhi's End-of-Life…

  scconline.com · Published guide · dated 30 March 2026

• National Highways Authority of India, Ministry of Road Transport &…

  nhai.gov.in · Official page

• Ministry of Road Transport & Highways, Government Of India

  morth.nic.in · Official page

• CAQM

  caqm.nic.in · Official page

A gap is not a fact. It means we looked and found no source.

• No government order found for the two-wheeler bans on the Mumbai to Pune Expressway, the Ahmedabad to Vadodara Expressway or the Mumbai sea bridge; the sources are encyclopedia pages.
• No source found on whether the two-wheeler ban also covers the Andhra Pradesh stretch of the Bengaluru to Chennai Expressway opened in 2026.
• No official page found that settles whether two-wheelers may use the Yamuna Expressway; two pages on one toll guide contradict each other.
• No source opened says whether Delhi's age limit for vehicles is applied to motorcycles.
• Nothing found for the east coast leg: no rule, season or hazard sourced for Visakhapatnam, Bhubaneswar or Kolkata, including cyclones.
• Nothing found for Varanasi, Kanpur, Udaipur or Jaipur.
• No source found for the usual number of days riders take; the best months rest on one rider's guide.
• No highest point recorded for the loop.
• The first video is dated from its title; the second has no known filming date.