Troubleshooting > Failures par brand > DERBI > DERBI SENDA R DRD PRO 50 > The fork oil seals are leaking on my DERBI SENDA R DRD PRO 50
Dirt, sand and other debris seep between the seal and the fork's inner tube, creating an incomplete seal that no longer provides a seal. © of scabbards and therefore the retention of the hydraulic fluid ensuring the braking of the movements of the fork. Any moving part, like the fork of the motorcycle and the two major parts, tube and scabbard, is subjected to stress and wears more until it no longer performs its function. This is particularly the case of the part which ensures the seal between the tube and the sheath of the fork, the lip seal, also called the oil seal.
The first warning signs of their deterioration are obvious: traces of liquid on the tubes and scabbards, increasingly flexible behavior of the fork, impaired handling of your motorcycle or even slamming on hard brakingâ € ¦
Even if these are just two rubber seals, these are very important for good handling of the motorcycle. If your fork tubes are oily after cleaning recently, this is a sign. The gaskets are probably worn. It can become dangerous on the road car of the'oil may flow on the brakes.
The spinnaker seals are sold with or without their dust cover. If we can recover the original ones, starting from zero is always better: the sliding parts, even less "fragile" than the spinnaker, also wear out. For the forks classic, some motorcycles and some props offer small discreet deflectors. They make it possible to spare as much as possible the joints and a specific area of the fork tube, by attaching to the scabbard.
Warning: readjust the settings of your fork before dismantling.
- Respect the quantity ofoil required.
- Pay attention to the viscosity of theoil required. While 10W is standard, sports require 5W. A good brand ofoil is a plus: they work and age better under stress.
Seals fork should be replaced regularly. They end par sâ € ™ wear and par run away, whatever you do to keep them waterproof. If you don't know how, you can turn to a professional or become a buddy with a motorcyclist who knows the mechanics. You will need specific tools to do the job.ar yourself. These tools can be expensive and unique to your bike or suspension size. A trip to the dealership to fix this problem is also expensive.