Shimano Claris RD-R2000-GS Rear Derailleur - 8 Speed Medium Cage Black MFPN=90014838 Here are the known exceptions:

Here are the known exceptions:

Compound Semi-Metallic Heat Sink No Backing Plate Material Steel

0 580 185 73

and a 6 Allen key all in one

Shimano Claris RD-R2000-GS Rear Derailleur - 8 Speed Medium Cage Black MFPN=90014838 Here are the known exceptions:The Shimano Claris R2000 series is designed at a price point for new riders. Not race oriented but designed for easy rides around town with the durability to handle a long tour. The Claris R2000 has a sporty design but its function promises the opportunity of comfortable and casual riding. 8 Speed rear derailleur Largest Cog 34 Color Black Rear Der Shifter Compatibility Shimano Road Rear Derailleur Mount Type 10x1 Standard Drivetrain Speeds 8 Chain