- Diamond R Bit.
- Argentine Curb.
- Low Port.
A great bit for your next ride. This low port bit from Diamond R has 6” stainless steel cheeks and a 5” mouth. The mouthpiece is 3/8” in diameter. Store indoors or in a tack room. Wipe or brush off debris after each use. Check for damage before each use. Diamond R Style Number DR400.