microSHIFT Centos Rear Derailleur - 11 Speed Short Cage Black MFPN=Y1N998050 Machined from high-end aluminum Promax

Machined from high-end aluminum Promax 5-bolt 110 BCD chainrings are designed to handle the torque and stress of modern BMX racing and are fully capable in other single speed applications

2 crown race setting tube

}RockShox Reverb Stealth Air Valve Assembly

}Promax RMV Rim - 20" 36H Tubeless Ready Black Front

microSHIFT Centos Rear Derailleur - 11 Speed Short Cage Black MFPN=Y1N998050 Machined from high-end aluminum PromaxmicroSHIFT Centos Rear Derailleur 11 Speed Short Cage Black. Centos delivers race level shifting performance with full aluminum construction. These derailleurs support all riders who would enjoy any kind of road riding. Light weight full aluminum construction TECH SPECS Largest Cog 30 Color Black Rear Der Shifter Compatibility Shimano Road Rear Derailleur Mount Type 10x1 Standard Drivetrain Speeds 11 Weight 194 Chain Wrap Capacity (teeth) 35 Cage