- Black Diamond™ valves are CNC machined from one-piece forgings of EV8 Stainless Steel
- Lightweight, strong, one piece forging with profiles that provide excellent flow characteristics
- Valve is infused by a special German process to a depth of .002, with a surface build up of .0002 which improves wear properties, reduces friction, and provides resistance to corrosion and wear that is superior to chrome and nickel electrolysis plating
- Each valve is designed using Finite Element Analysis (F.E.A) software, and profiles are tested on a computerized flow bench
- Stems are coated with black nitroneg
- Made in the USA
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 1981-1983 | Honda | ATC185S | |
| 1981-1983 | Honda | ATC200 | |
| 1984-1985 | Honda | ATC200M | |
| 1984-1986 | Honda | ATC200S | |
| 1983-1987 | Honda | ATC200X | |
| 1982-1983 | Honda | Big Red 200 ATC200E | |
| 1984 | Honda | Big Red 200 ATC200ES | |
| 1983-1984 | Honda | XR200 | |
| 1983-2002 | Honda | XR200R | |