?LIGHT WEIGHT HOLLOW DESIGN?Our mountain flywheel adopts hollow design, weight reduction, super wearable steel. , for best performance and maximum safety and life.
?wearable ?The 9 12 speed freewheel adopts high tension steel, wearable , no rust. Ultra wearable imported steel.
?HIGH QUALITY ?This road bike freewheel with high pressure steel plate, and plating treatment. for long use time.
?WIDE USE?This bike cassette freewheel is suitable for mountain bike, , etc. Option for 9S 11 32T, 10S 11 36T, 11S 11 42T, 12S 11 50T.
?REPLACE FOR OLD?This freewheel is replacement of old flywheel. Makes shift smoother and quieter.