GSport Birdcage Rim Color:Chrome Oval tapered tubing gives the

Oval tapered tubing gives the cranks a sleek look & a stiff feel

5-13" BB Height 11

Avail in 4

Colony Lower Gyro Cables

GSport Birdcage Rim Color:Chrome Oval tapered tubing gives theLIGHTWEIGHT 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