Check the listing for details. TRIUMPH RING COMPRESSOR TOOL 650CC 70-75MM BSA NORTON. Condition: New. Listed at 39.95 USD. FOR SALE! RING COMPRESSOR WE ARE SELLING A SET OF RING COMPRESSORS FOR YOUR MOTORCYCLE. THIS WILL WORK FOR ANY SET OF PISTON AND RINGS WITH IN A 70- 75MM RANGE. TYPICALLY A TRIUMPH 650 STANDARD THROUGH .0.080 OVER WOULD USE THIS TOOL. WILL WORK ON ANY MAKE AND MODEL WITH IN THE SIZE RANGE.... VINTAGE TRIUMPH SUPPLY SPECIALIZES IN VINTAGE BRITISH MOTORCYCLE PARTS. WE HAVE OVER 10,000 PARTS AVAILABLE. IF YOU CANNOT FIND SOMETHING ON OUR EBAY STORE PLEASE CALL AND WE WILL DO OUR BEST TO GET YOU THE PART YOU NEED FOR YOUR MOTORCYCLE. WE HAVE OVER 10 YEARS EXPERIENCE REBUILDING, RESTORING AND MAINTAINING BRITISH MOTORCYCLES, SPECIALIZING IN TRIUMPHS. THE INSTALLATION OF SOME OF THESE PARTS CAN BE DIFFICULT AND WE WILL DO OUR BEST TO ASSIST YOU WITH THEM. ALSO WE CAN TRY TO ANSWER ANY OF THE QUESTIONS YOU MAY HAVE. WE ARE AVAILABLE MONDAY-SATURDAY 9AM-8PM. PLEASE FEEL FREE TO CALL US AT (774) 328-6623