A full wiki page for this entity is still being generated. Until then, see the recorded facts below.
Sources — 3 recorded facts, by chapter
Chapter 20
- The chopper is a coal-fueled powered bicycle with an alligator-skull seat and sidecar that is pedaled to speed then locked in via a throttle, and its built-in engine grows dangerously hot.
Chapter 21
- The Chopper runs on lumps of coal, getting about three to four miles per lump, and travels roughly 20 mph with Carl learning to read its sounds and vibrations.
- The Chopper can be stored away and re-summoned, and Carl steers it through the dungeon's hallways while keeping his legs raised to avoid burns.