1998 - 1999
YAMAHA YZ 400 F
Piston kit
| ProX
Fits to:
YAMAHA YZ 400 F [1998 - 1999]
Specifications
| Manufacturer | ProX |
|---|---|
| Style | Forged Replica |
| Units | Kit |
| Engine type | 4-Stroke |
| Piston material | Aluminum Alloy| Forged |
| Ring material | Steel |
| Compression ratio | 12,5:1 |
| Piston diameter | 91.95 mm |
| Compression ratio | 12,5:1 |
| Style | Forged Replica |
| Units | Kit |
| Piston material | Aluminum Alloy| Forged |
| Ring material | Steel |
| Engine type | 4-Stroke |
| Piston diameter | 91.97 mm |
Variant description
Compression Ratio: 12.5:1
ProX pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers.
Coated for ultimate performance:
Most of the ProX pistons come with a coating. ProX OEM style Tin coated pistons assist the wear in process when you just started the bike. ProX have developed a new skirt coating that not only assists the wear in process, but also helps reducing friction after the wear in. The black coating is made from a delicate mix of materials and will increase performance.
All ProX Piston Kits are supplied complete with Piston Rings, Wrist Pin and Circlips, ready to install!
Variant description
Compression Ratio: 12.5:1
ProX pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers.
Coated for ultimate performance:
Most of the ProX pistons come with a coating. ProX OEM style Tin coated pistons assist the wear in process when you just started the bike. ProX have developed a new skirt coating that not only assists the wear in process, but also helps reducing friction after the wear in. The black coating is made from a delicate mix of materials and will increase performance.
All ProX Piston Kits are supplied complete with Piston Rings, Wrist Pin and Circlips, ready to install!