*This is a clearance item and has a damaged fin as shown in the photos. Sale on this item is final.
WE’VE DONE OUR BEST TO DESCRIBE AND ILLUSTRATE ANY KNOWN DETAILS OF THIS ITEM. PLEASE REFER TO PHOTOS AND DESCRIPTION AS ALL SALES ARE FINAL ON THIS CLEARANCE ITEM!
Top of the Line, UK made 650cc to 750cc Aerco Big Bore Kit for Triumph Unit 650 twins with 9 stud heads 1963-72. Due to rough shipping from the UK, the product has a bent fin. Â
Please note: Although the diameters of the Aerco Big Bore pistons and Triumph T140/TR7 pistons measure the same, the gudgeon pin sizes differ from the Aerco pistons to the original 750 pistons, so T140/TR7 pistons are NOT compatible with the TBS- 0150 Big Bore kit.







