Shimano GRX RX810 Chainring - 42t 110 BCD 4-Bolt 11-Speed Black 3/8'' Topeak JoeBlow Sport 2Stage has

Topeak JoeBlow Sport 2Stage has a unique 2-stage design delivers both high pressure and high volume in record time

4 Tubeless Folding Black

8 Color Black Material Aluminum Defined Color Black Stack Height 28 S

One spoke length per wheelset

Classic wood handle for comfortable air compression

Shimano GRX RX810 Chainring - 42t 110 BCD 4-Bolt 11-Speed Black 3/8'' Topeak JoeBlow Sport 2Stage hasShimano GRX RX810 Chainring 42t 110 BCD 4 Bolt 11 Speed Black. These chainrings are designed for the Shimano GRX FC RX810 crankset. TECH SPECS Color Black Ring Position Type Single Tooth Count 42 Drivetrain Speeds 11 Chainring BCD 110 Shimano Asymmetric Defined Color Black