GSport Birdcage Rim Color:Chrome 75 (44 casing)

75 (44 casing)

we draped this all w/ BMX race-specific tread that transitions from a center band w/ a large contact patch to unidirectional tactile knobbies on the sides

5-13" BB Height 11

Colony Lower Gyro Cables

GSport Birdcage Rim Color:Chrome 75 (44 casing)LIGHTWEIGHT STRUCTURE At first glance the Birdcage looks like a fairly conventional aero style rim, but there is more to it than that. The first clue comes from the name; birds have hollow bones to save weight whilst retaining as much strength as possible, & the Birdcage rim has a hollow bead for the same reason. The rims hollow bead is still big & chunky to help reduce the chances of pinch puncturing or flat spotting the rim, but by creating a tiny