The Groups have evolved over the years and Ron Lee provides a lovely summary of this in his article Club Runs History
All Group rides are social rides and must not be treated as training or competitive rides.
Please also read 'Group Rules & Etiquette'
Some useful notes for Group Leaders, and aspiring Group Leaders, can be found HERE
50-60 MILES : 18-20 MPH - more
40-70 MILES : 16-19 MPH - more
50-70 MILES : 16-18 MPH - more
50-60 MILES : 15-17 MPH - more