Instead,
look for a fork oil with a high viscosity index (VI)
. A higher VI indicates better resistance to viscosity changes throughout broad temperature swings. That translates into consistent shock performance and feel despite the ambient and operating conditions. And a consistent ride equals a more effective rider.
What’s the difference between 10w and 15W fork oil?
Without looking up the difference in Centi-stokes, from a practical standpoint,
the thicker oil slows down both compression and rebound
. 15W would deliver a slightly less compliant ride, so, high-speed compression could feel more “jarring”, and a series of hard bumps would gradually “pack-down” the suspension travel.
What does heavier weight fork oil do?
Heavier oil will
increase the effective damping
, in other words the forks will move up and down a little slower and feel stiffer. Lighter weight oil will do the opposite, allowing the forks to move up and down faster and feel softer.
Can I use engine oil as fork oil?
motor oil works well in the outer chambers of twin chamber forks
. I first used it in my honda now my yamaha and I think the 5/20 motor oil is slicker and offers less stiction. Some have said the honda forks mix the outer and inner oils over time so that might be a problem if you run your too long between changes.
Do I need to change fork oil?
The oil in your fork loses lubricity, gets dirty, and should be changed
every 10,000 miles or once a year
.
How do you adjust fork oil height?
Is all fork oil the same?
Some will claim that fork oil is just fork oil, and
any brand will offer the same performance
. Consider this before buying another brand: There isn’t a standard viscosity index similar to engine oil. One brand may offer a light and medium viscosity oil also, but their version may be completely different from AMSOIL.
Is there a difference between fork oil and shock oil?
Fork oil and Shock oil is the same
.
Can you mix different weight fork oil?
Yes it’s fine
. You just get a mix that has a specific weight that is somewhere between the two original oil weights. Mixing different weight oils is commonly done to tune suspension. For example, equal amounts of 10 and 15 weight oil to make 12.5 weight.
What is fork fluid?
Product Description. GLOBAL RACING OIL FORK FLUID is
a synthetic fork lubricant specially designed to meet the requirements of the modern suspension systems
. The exclusive additive provides effective seal protection, extends service life and reduces outflows.
What weight is motorcycle fork oil?
The factories use
5wt
oil because it’s thin enough to remain stable when heated past 100 degrees Fahrenheit and thick enough to lubricate the large surface areas sliding back and forth in a fork. The starting point for every modern fork is 5wt oil. That is what your fork needs.
How much fork oil do I need?
typically you would
overfill the forks and draw out the excess oil with a syringe/tube that is set a specific distance below the edge of the top of the fork tube
, in roadracing you will see a lot of bikes running between 90-110mm fork oil level.
What is the heaviest motorcycle fork oil?
What type of oil is fork oil?
Fork oil is
a specific kind of product
. It isn’t motor oil. This oil is designed to do just one function. Fork oil comes in a variety of ‘weight’ or thickness grades.
Can I use ATF for fork oil?
ATF works great as a fork oil
. It is relatively light weight, 2-5 W and rather unpredictable. If you need to use more than 1 bottle it might be a good idea to premix the stuff to isolate any bottle to bottle differences.
How long does fork oil last?
Usually, the change interval for the fork oil ranges from
10,000 miles to 20,000 miles
depending on the motorcycle manufacturer and model. A general replacement rule of changing the fork oil every 10,000 miles or annually should keep the front suspension in good working condition.
How can you tell if fork oil is bad?
How much oil do forks hold?
It’s
about 200ml
of oil.
When should I change my bike fork oil?
Ideally, the fork oil must be changed at specific intervals as documented in the owner’s manual. If not specified, then it’s best to change
when you notice a leak / degraded fork performance
. On my motorcycle, the recommended change interval is 40,000 kms.
What happens if you put too much fork oil?
Too much oil
can cause your forks go “on block”
. For example if you break hard and hit a speed bump at the same time then worst case scenario would be that one or both of the slider end cap breaks out “which results in death or serious injury” (as the manual states).
What happens if you overfill fork oil?
To make matters worse, overfilling the fork with oil can
damage the fork seals causing them to leak
. If this happens, the seals must be replaced.
Can I add fork oil without removing forks?
You need to remove the forks to do it right
. You’ll have to remove the handlebars at a minimum. And it will be crazy trying to siphon out old fluid, you cant get a tube down the fork leg with the spring in it.
What viscosity is two stroke oil?
What Grade Is 2-stroke Engine Oil? Oil for 2-stroke engines used to be made from SAE 40 mineral oil, which was traditionally the most popular. The oil used in modern 2-strokes, however, is much lower viscosity,
SAE 15
, and requires a low smoke.
