19mm Theory Euro BMX Bottom Bracket Set - Silver Gum The tread pattern is K-909A

The tread pattern is K-909A

This 20" rear wheel features a 36-hole double wall 36mm rim and a 9T cassette with a 14mm axle and 5 sealed bearings

This sprocket has an anodized finish and laser etched logos

5-degree upsweep is just slightly up from most traditional bars

7mm non-drive side spacer (x1)

19mm Theory Euro BMX Bottom Bracket Set - Silver Gum The tread pattern is K-909AThis Theory Euro bottom bracket set is made for 19mm crank spindles (available separately) and threaded Euro bottom bracket frames. It comes with 4 bearings, aluminum cups, a tube spacer, and 4 anodized washers for increased durability. Shell: Euro Size: 19mm Color: Silver Bearing seals may differ in color from the photo.