Here are a few links that we feel you may find useful:
Bolton Automotive & Aerospace Research Group
The University of Bolton
Clive Wheatley
M&M Automobile Spares
Classic Roll Bars by M&M Accessories LTD, M&M Buildings, Duckworth Street, Darwen, Lancashire, BB3 1AT Telephone: (01254) 778257 email: sales@classicrollbars.co.uk Regested in England Reg No: 1715852, VAT Reg No: 174756530