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Sunrace RDMZ600 12sp Rear Derailleur Med Black Model NQR ButterCups block 20% of high frequency Inner Ring Compatibility:32T ButterCups block 20% of high frequency “trail chatter” to reduce hand and arm fatigue Fits Brand Voodoo Fits Brand Univega Fits Brand Torelli Fits Brand Tomac Fits Brand Stevens Fits Brand Sette Fits Brand Schwinn Fits Brand Salsa Fits Brand Ridley Fits Brand Planet X Fits Brand Pinarello Fits Brand Nishiki Fits Brand Leopard Fits Brand Lapierre Fits Brand Kona Fits Brand Ibis Fits Brand Ghost Fits Brand FRW Fits Brand Eddy Merckx Fits Brand DaBomb Fits Brand Coluer Fits Brand Colnago Fits Brand Cinelli Fits Brand Canyon Fits Brand BMC Fits Brand Bianchi Fits Brand Assos Goomah Fits Brand 9:ZER0:7 Integrated chain stabilizer width:100%
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