A Cardiff nextbiker is using the city’s bike share scheme to pedal his way to pounds for a Welsh charity this weekend. University student, Ieuan Davies, who uses nextbikes daily as part of his regular commute, is embarking on a ride to raise funds for homelessness charity, Llamau.   Ieuan, a 25-year-old PhD student at Cardiff University, is undertaking in the Carten 100 event on Saturday (April 27), which will see him ride 100 miles from Cardiff to Tenby…