RALEIGH BURNER CHAIN TENSIONER BMX ADJUSTERTUGS FOR 3/8″ (10mm)AXLES OLD SCHOOLA PAIR OF ZINC PLATED FINISH CYCLE CHAIN ADJUSTERS WE MENTION RALEIGH BURNER IN THE HEADING BECAUSE THEY ARE IDEAL FOR RALEIGH BURNERS BUT PLEASE NOTE THEY ARE NOT A RALEIGH MADE PRODUCT ( IF THESE WERE RALEIGH MADE THE PRICE WOULD BE TOTALLY DIFFERENT )THESE ARE GREAT BECAUSE THEY PREVENT CHAIN SLACK ON , RALEIGH BURNERS , OLD SCHOOL BMX ,MODERN BMX (providing you have a 10mm (3/8) AXLEHOW MANY TIMES DO YOU FIND THAT YOU ARE TIGHTENING YOUR CHAIN , FIT THESE AND THATS ANOTHER THING YOU DO NOT HAVE TO WORRY ABOUTTHESE ARE MADE FOR 3/8″ ( 10mm ) AXLESLENGTH FROM AXLE CENTRE TO END 40mmTHESE ARE GREAT PRICE FOR A NICE QUALITY PAIR UNLIKE MANY THAT YOU CAN BUY