DirtySixer 36er MTB. DirtySixer is an American brand. They build custom 32er and 36er MTBs for tall riders specifically designed, engineered and hand fabricated in California. DirtySixer is the only bicycle endorsed by the NBRPA (National Basketball Retired Player Association).
“If you’re taller than 6’6” (198 cm), there’s a good chance you’ve never had a bicycle your size. We get that, and we build custom and small production handmade bikes at your size, whether you’re Michael Jordan’s size or Yao Ming’s.”