Below are the guidelines I will have to follow as I attempt to break the Guinness World Record for cycling around the world.
At the bottom of the page is a brief history of the Guinness World Record for cycling around the world.

FASTEST CIRCUMNAVIGATION BY BICYCLE, TRUE (MALE)
DEFINITION OF RECORD
This is for the fastest time to go around the world by bicycle.
This record is to be attempted by an individual
The measurement value is time in days, hours and minutes.
GUIDELINES FOR ‘FASTEST CIRCUMNAVIGATION BY BICYCLE, TRUE (MALE)’
1. Start and finish points must be the same location.
2. The journey should be continual and in one direction i.e. East to West or West
to East.
3. Any considerable distance travelled opposite to the direction of the attempt (be
it on foot or by other means of transport such as an aircraft) will be discounted
from any calculations of the overall distance travelled.
4. The minimum distance travelled should be 18,000 miles (28,970 km) and the
total distance travelled by the participant should exceed an equator’s length, i.e.
more than 24,900 miles (40,075 km).
5. Only riding time will be taken into account; time taken aboard ferries, flights etc.
should be noted but not included in the total. Riding time is defined as the time
that elapses between periods when the bicycle is being shipped, and includes
overnight stops and any other breaks taken. In other words, the clock starts
ticking as soon as the cycle clears customs at the port/airport to which it has
been shipped, and only stops when the rider reaches the exact point from which
it will next be transported (if, for example, the vehicle is to be transported by
ship, the clock should only stop once it has reached the actual harbour or
quayside from which will depart. It is not adequate merely to reach the town).
6. When crossing oceans or any other impassable barriers the participant may use
scheduled public transport, such as buses, aircraft, ferries etc. However, private
or chartered transport (including taxis) is not permitted.
7. Any considerable distance travelled opposite to the direction of the attempt
must be discounted from any calculations of the overall distance travelled.
8. It is a requirement that the proposed route is submitted prior to the attempt to
ensure that the requirement with regard to the distances covered, will be
achieved. The two antipodal points on the route should be indicated.
9. The participant must pass through two approximate antipodal points during the
attempt. For exact antipodal points the co-ordinates north and south are the
same, whilst that east plus that west equals 180°, however, for this event an
allowance of 5° difference in total is permitted.

A HISTORY OF THE GUINNESS WORLD RECORD FOR CYCLING AROUND THE WORLD.

In 1981 Nick Sanders (UK) cycled around the world in 138 days, beating the previous world record by 5 days. He cycled a total distance of 13,608 miles.

In 1984 Jay Aldous and Matt DeWaal (USA) cycled 14,290 miles in 106 days on a round the world trip. Their journey started and finished in Salt Lake City, Utah, USA.

In 1985 Nick Sanders (UK) broke his own world record by cycling around the world in 78 days averaging 170 miles a day.

In 1992 Tal Burt (Israel) cycled around the world in 77 days, 14 hours. His journey started and finished at Place Du Trocadero, Paris, France and covered 13,253 miles.

After this Guinness World Records made amendments to the rules. Below are the people who have held the record under the new guidelines.

Steven Strange (UK) cycled around the world in 276 days 19 hrs 15 mins from 9 May 2004 to 13 February 2005. He cycled 18,424 miles. His journey started and finished in Vancouver, Canada.

Philip White (UK) is the youngest person to complete a true circumnavigation by bicycle. He achieved his feat aged 24 years 125 days between 19 June 2004 and 24 April 2005. His journey started and finished at Trafalger Square, London, UK.

Mark Beaumont (UK) set a record of 194 days 17 hours for a circumnavigation by bicycle.

Julian Sayarer (UK) set a record of 169 days for a circumnavigation by bicycle.

Vincent Cox set a record of 163 days, 6 hrs, 58 mins for a circumnavigation by bicycle.