Features:
- 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
Fit the models:
| HONDA |
CRF 250 R |
2021 |
| HONDA |
CRF 250 R |
2020 |
| HONDA |
CRF 250 R |
2019 |
| HONDA |
CRF 250 R |
2018 |
| HONDA |
CRF 250 RX |
2020 |
| HONDA |
CRF 250 RX |
2019 |
| HONDA |
CRF 250 RX |
2021 |
| HONDA |
CRF 250 R |
2021 |
| HONDA |
CRF 250 R |
2020 |
| HONDA |
CRF 250 R |
2019 |
| HONDA |
CRF 250 R |
2018 |
| HONDA |
CRF 250 RX |
2019 |
| HONDA |
CRF 250 RX |
2020 |
| HONDA |
CRF 250 RX |
2021 |

Kibblewhite Precision Machining, Inc. (KPMI) is a U.S.-based manufacturer founded in 1939, specializing in high-performance valvetrain components for motorcycles and motorsports. Headquartered in Pacifica, California, KPMI is known for precision-engineered valves, springs, guides, and related parts, serving a global market including sportbikes, dirt bikes, and custom builds.
| Brand |
Model |
Year |
Name |
CC |
| HONDA |
CRF |
2018 |
|
250 |
| HONDA |
CRF |
2018 |
|
250 |
| HONDA |
CRF |
2018 |
|
250 |
| HONDA |
CRF |
2018 |
Rally |
250 |
| HONDA |
CRF |
2019 |
|
250 |
| HONDA |
CRF |
2019 |
|
250 |
| HONDA |
CRF |
2019 |
|
250 |
| HONDA |
CRF |
2019 |
Rally |
250 |
| HONDA |
CRF |
2019 |
|
250 |
| HONDA |
CRF |
2018 |
|
250 |
| HONDA |
CRF |
2019 |
|
250 |
| HONDA |
CRF |
2020 |
|
250 |
| HONDA |
CRF |
2020 |
|
250 |
| HONDA |
CRF |
2020 |
|
250 |
| HONDA |
CRF |
2020 |
Rally |
250 |
| HONDA |
CRF |
2020 |
|
250 |
| HONDA |
CRF |
2020 |
|
250 |
| HONDA |
CRF |
2020 |
Rally |
250 |
| HONDA |
CRF |
2020 |
Rally |
250 |
| HONDA |
CRF |
2021 |
|
250 |
| HONDA |
CRF |
2021 |
|
250 |
| HONDA |
CRF |
2021 |
|
250 |
| HONDA |
CRF |
2018 |
|
250 |