Avian Ceramic BB86 Bottom Bracket tri-flow Made from 7075 aluminum and

Made from 7075 aluminum and available in either 15mm or 20mm at lengths of 109mm

Designed for rear but can be used as a front rim as well

Size: 20x1-3/8" (fits 20x1" to 1-3/8" tires)

5" with velcro)

Avian Ceramic BB86 Bottom Bracket tri-flow Made from 7075 aluminum andCompatible on high end frames by manufactures such as Speedco, Haro, Redline, & Chase (carbon), the Avian Ceramic BB86 Bottom Bracket is a simple, yet noticeable upgrade over your older bracket. Installation is quick and easy, with no spacers required. And with 10mm of bearing surface contact with the shell, the days of creaky, rickety will be long behind you. Designed for cranks with 24mm spindle. SPECIFICATIONS Composite Cups Compatible with 24mm