Brian Castillo designed the new Castillo bars.
Ride BMX UK february 1997: They’ve been a long time coming – the new four piece bars from S&M are no fuss and simple as a 4 piece bar can be: they’re not six piece, not oversized, not swaged, just a regular 4pc design. Which we kinda like in fact. The Castillo bars have been designed by S&M’s street ruler Brian Castillo [he rules – check his section on the last S&M video] hence the name. They are fairly low, with a low crossbar, and deep-knurled stem-tube and thick walled cromoly tubing. The size is absolutely great, with a rad sweep [a little flatter than Dirt Bars], and good overall feeling. They also come in several colours, this olive green is particularly good. Castillo bars are well worth checking out.

From the 96/97 S&M Catalog: This is one well thought out frame. Designed by Sean McKinney for flat and street riding and maufactured right here in the USA with authentic 4130 tubing. Fujitive approved and Troy McMurray tested. Available in black and Sabbath Bloody Sabbath (red). Oversized 1 1/8″ head tube and 1″ seat post.