PBJ PBJ 24 - Frame

The current Transition PBJ marks a clear shift from the brand’s previous chromoly dirt-jump platform to a hydroformed 6061-aluminum frame with a more modern feature set. Rather than simply updating tubing, Transition reworked the bike around adjustability and cleaner integration: the frame uses horizontal 10x135 mm dropouts with integrated chain tensioners, allowing riders to fine-tune chainstay length while keeping setup straightforward. It also adds internal or external rear brake routing and gyro compatibility, details that matter on a bike intended for barspins, pump tracks, skateparks, and jump lines.

What distinguishes this generation is how it balances contemporary frame features with the compact, responsive character expected of a PBJ. The sizing has been rethought as Youth, Short, and Standard, including a dedicated 24-inch Youth option rather than just scaling adult sizing labels. On the adult bikes, the published 377–395 mm adjustable rear end keeps the bike firmly in the quick-handling dirt-jump category, while the shorter reaches relative to the old longest PBJ sizes suggest a bike aimed more at agility and trick-friendly maneuverability than stretched-out stability. In the market, it sits as a purpose-built aluminum jump bike for riders who want a stiffer, lighter-feeling alternative to steel without giving up practical details like chain tension adjustment and gyro-ready routing.