Rims, historically are something that don't really change too much, but with the never-ending evolution of BMX, and âflybikes" being a brand to never sit still it was time to freshen up our very popular âClassic" rim with some much needed improvements. Besides the strength and obvious design features of the âClassic" rim, the new âLunar" rim includes a greater spoke offset for increased stability and refined adjustability, an overall taller shape, deeper rim bed for easier tire installation, thicker sidewall thickness for dent resistance, a rim lip that helps avoid pinch-flats, all rounded out with a perfect 34mm. width. The âLunar" rim has it all!