KYB Fork Free Piston Seal (O-ring) (top) for HONDA CRF 450 and KAWASAKI KXF 450 2013-2014

The KYB KYB-3001101 fork free piston seal is designed for HONDA CRF 450 and KAWASAKI KXF 450 from 2013 to 2014. In closed cartridges, a free piston separates the damping oil from a compensation volume. Its seals keep the two apart: when they wear, oil or gas gets past and the damping becomes inconsistent.

Specifications

• Brand: KYB
• Manufacturer part number: KYB-3001101
• Dimensions: 3.5 x 38.50 x 12.00 mm

When to replace it?

• Fork damping that changes during a ride.
• Oil getting where it shouldn't, cartridge oil level dropping.
• Seal hardened, marked or distorted when you remove it.

Replace this part at every full cartridge service, as set out in the fork manual. Check the diameter and dimensions listed: they must match your cartridge.

Fitting tips

1. Servicing a cartridge takes method and the right tools: follow the fork manual or leave it to a suspension specialist.
2. Strip the cartridge, clean all the parts and check the condition of the rod (scratches, pitting).
3. Fit the new part, oiled, without twisting it or damaging it on the threads.
4. Reassemble with fresh fork oil and carefully bleed the air out of the cartridge.

Why KYB?

A Japanese hydraulics specialist since 1919, KYB designs shock absorbers and forks for cars and motorcycles alike. Its motorcycle range also includes maintenance parts for its suspension: fork oil seals, fork bushings and oil.

Spare parts and items to plan

• Fork oil : LIQUI MOLY 10W 500 ml
• Fork oil seals : ATHENA P40FORK455216 · ATHENA P40FORK455123

Frequently asked questions

Should I service both fork legs?
Yes: service both sides together so they behave identically.

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
HONDA CRF 450 2014
HONDA CRF 450 2013
KAWASAKI KXF 450 2014
KAWASAKI KXF 450 2013