Shimano Tourney RD-TY500 6/7 Speed Rear Derailleur MTB City Bike Bicycle

FEATURES Light action shifting for stress-free long riding Smooth, light and reliable shifting performance Double servo-panta mechanism Quick and easy assembly Lighter shifting operation and reduced outer cable head distortion wheel-type cable guide pulley Pre-assembled inner cable fixing nut TECH SPECS CAGE LENGTH: SGS/Long-D,SGS/Long-B TOTAL CAPACITY: 43T MAX FRONT DIFFERENCE: 20 CABLE ADJUSTER: X COLOR: SERIES COLOR MOUNT: Direct attachment (conventional),Riveted adapter (Road type) NUMBER OF PULLEY TEETH: 13 SERIES: Tourney GENERATION: TX/TY MAX LOW SPROCKET: 34 MIN LOW SPROCKET: 28T REAR SPEEDS: 7/6 TOP NORMAL SPRING TYPE: Double Servo ***These are OEM Shimano Parts, Brand new, Never Installed on Bike, Never used in any way, just NOT in retail packaging.***

Swishti Narrow-Wide Bike Oversized Fully-CNC Derailleur Pulley 12T Gold

SwishTi Narrow-Wide Rear Derailleur Bicycle Oversized Pulley. Weight: approx.12g(12T) / 15g(14T) / 16g(16T). Each tooth alternates thickness, narrow wide narrow wide, all the way around the pulley. The narrow wide pulley now mates seamlessly with the chain, almost locking the chain to the ring without much increase in drag.