The fundraiser is in aid of five charities.
An Offaly club is on track to travel 160,000 kilometres in three months.
Tullamore Cycling and Touring Club is undertaking the 'Around the World Four Times in 80 days' challenge to raise money for Offaly Hospice, Offaly Down Syndrome, NCBI Sightloss, Tullamore Accessible Counselling and Offaly Irish Kidney Association.
The challenge is due to finish on 1st July, and they've currently have 118,000km on their clock.