Page 3 of the Bicycle case study - Folding bikes - Raleigh folding bike - Development folding bikes - Features of folding bikes - desig limitations of folding bikes - GCSE case study for Engineering and Design & Technology students - Raleigh 20 - principles and problems - discussion points for GCSE Engineering and Resistant Materials or Industrial Technology studies - Design & Technology. Mr Richmond's help pages for students, teachers and those interested in technology issues. IWB resources and downloads from DTOTW - Design & Technology On The Web. Project, Coursework and exam revision help.