6 SPEED MEGA RANGE SCREW ON FREEWHEEL CASSETTE 14/34 HI-RANGE SUIT SHIMANO GEARS6 SPEED MEGA RANGE SCREW ON FREEWHEEL CASSETTE 14/34 HI-RANGE WILL WORK WITH SHIMANO & THER BRAND GEARSA GREAT OPPORTUNITY FOR YOU TOCHANGE THE GEARING OF YOUR BIKE TO A MUCH LOWER GEARIE IT WILL BEMUCH EASIER TO PEDAL IN THE 34 TEETH LOWER GEARWITH THIS MEGA RANGE 6 SPEED FREEWHEELTHISCAN BE USED WITH ALL SIZE CHAINWHEELSAND WORKS WITH THUMB, GRIP OR EASY FIRE SHIFTERS WHICH CAN BE SHIMANO OR OTHER BRANDS ( We have all these items if you need any other parts of your gear system )MEGA RANGE 6 SPEED INDEX FREEWHEEL(SOMETIMES KNOWN AS A SCREW ON CASSETTE OR A BLOCK ) GIVING A WIDE RANGE OF GEARING, IDEAL FOR HILLS & TREKKINGSCREWS ON TO ALL STANDARD MULTI-SPEED REAR HUBSRATIO 34/24/21/18/16/14 (THIS IS NO OF TEETH ON EACH COG)WEIGHT 480 grams (approx)BLACK/SILVER FINISHNERVAR BRANDED