... im only changing the fork oil because im changing the outer fork tubes for black ones and im now more confused that i was in the first place. The WPL product matches this well, with viscosity 24.6 / 6.3 cSt, and it has a better VI (i.e. To save you the trouble of finding the information, just the viscosity specifications for that oil are: 5W, and in terms of performance, they both will be significantly different. Front forks as opposed to rear shocks do not produce a lot of heat, so the viscosity to focus on for fork oil is the kinematic viscosity at 40°C, and although a high viscosity index is good, it is not critical since they will not normally reach temperatures higher than 40ºC. WSB Pack Hound. 2) What Happens if I Don’t Change My Fork Oil Regularly? Also, ATF is in that region and unlike fork oil the viscosity is always the same for each grade. The choice in fork oils is mind boggling. Fork oil weights---stock fork oil is Showa-SS8, listed as a 10 wt. just like polaris's overpriced mystery oil no specs are given + unlike engine oils fork fluid viscosities VARY!!! Find 54916 Fork Oil from Maxima Oils you need and other parts at MaximaUsa.com, Santee, CA, Maxima Oils. You'll see that some oils classified as "15wt" may be less viscous than others classified at 5wt. N.A. meaning one manufacturers 10W can be heavier than another 15W you need to know the centistoke spec especially if blending. In the first case, there is a little residual oil left in the fork leg. In the second case, you are filling a fork leg that is bone dry (requiring a little more).-Most Harley-Davidson models have a drain screw in the bottom. For example a Pulsar could use a less viscous oil while the Hayabusa will need a highly viscous oil to balance that load of the heavy front fairing and engine. 5w (2) 10w (2) 20w (1) 15w (1) 7.5W (1) 2.5W (1) FORK OIL EXPERT 20W . I have found the following quite useful when shopping for fork oils:Fork Oil Viscosity Chart Fork oils can be compared well by their 40°C viscosity (Centistoke value) The Only Dumb Question is the Unasked Question - Anonymous. Motul provides a large viscosity grade range to cater to every application and rider preference. No. Cookies help us deliver our services. Mineral based fork oil designed for cartridge and standard-type forks. There are several charts on the 'net showing the actual viscosity and the labeled "weight." OK Learn more Shock & fork lubricants; Motorcycle; Quality. Front Fork Fluid Shock Absorber Fluid Part No Description Viscosity, cSt at 40° C Contains Application 01302-02 Front fork fluid # 2 7,0 1,4 litre For cartridge forks, winter conditions. Motor Oil Viscosity Ratings Viscosity ratings … This measurement uses a similar viscometer arrangement as used to determine a cSt value, but grades the oil using a much more sensitive viscosity calibration scale. many special tools needed is bull, dealers want the work $$$, typical cheap unadjustable damper rod forks are very simple to service. The lower the viscosity rating or weight, the thinner the oil. However, the only way to truly drain all the oil is to remove the leg from the triple tree and turn it upside down. Then the fork is fully compressed (no spring) and filled to within 3-4" of the top of the compressed fork tube with the specified fork oil brand and viscosity*.The fork tube is then gently pumped up and down to free any trapped air bubbles in the damper mechanism, then fully compressed again. Shear stable, high viscosity index formulation maintains film strength and reduces wear. Besides just the raw viscosity data, there are other considerations to make when selecting a fork oil. New fork oils provide new suspension tuning technology. Viscosity Index is a more accurate reference and the table places dozens of oils in order of VI. malc. Mineral based fork oil designed for cartridge and standard-type forks. 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. Oil with a "5606" military specification can be depended-upon for viscosity (but not for some things you really want for your fork oil). Original front fork oil for Kayaba front fork 0W grade, 1L:99000-99044-L01 5W grade, 0,5L:99000-99044-05G 10W grade, 1L:99000-99044-10G 15W grade, 1L:99000-99044-15G I used Golden Spectro 85/150 Fork Oil thats a 5W and a pure Syn. Press Release. November 2, 2016. maintenance of original viscosity at … Although gear oil viscosity is not the same as that of engine oil, it is rated in centistokes. All this testing has enabled us to produce the nice chart below to show which lubricant works best based on temperature. 1) naming the brand/range of oil is useless - as people pointed out viscosity rating varies from manufacturer to manufacturer - no relevancy unless we can get the Cst@40c rating; 2) not knowing the weight of rider is useless - people who weights 70kg or less will often find the stock (k7 onwards especially) quite good and dont understand what the fuss is about. (which keeps the viscosity high thus stiffening fork … Fork oil weights are derived from the industrial standards used for hydraulic applications, called the Saybolt Seconds Universal (SSU). With 12 clicks on a Fox fork there is a bit of latitude on oil viscosity I would have thought. To start with, we have the full range of Motorex & Shockcraft fork oils listed below with type, viscosity & application information. Meaning, it can have a viscosity of 3.8 or 3.9 or 4.0 or 4.1 or anything above 3.8 and this is exactly the case, and X branded 5W fork oil will have different viscosity than a Y branded 5W fork oil. Finding the CsT rating of an oil may not be so easy of course. Bel-Ray High Performance Fork Oil is a front suspension oil formulated for use in all suspension forks including those using cartridge and dual chamber systems. Through the use of carefully selected high-viscosity base oils, fade is reduced providing smooth operation over a wide temperature range. Likewise, in the winter months, your forks may never reach up to the low end of the viscosity chart below. But the engine and gear oil viscosity overlap. Look for a high-VI fork oil. An oil of viscosity 3.8 and a different oil of viscosity say 4.0 can both be branded under same “weight” category i.e. Fork Oil Grades: Fork oils are graded depending upon their viscosity and load carrying capacity. Different manufacturers use different grade oils for the very reason as the load varies. Properties of Suspension Fluids for Off Road Motorcycles. 01311-01 Front fork fluid # … Recommendations. PJ1 FORK TUNER OILS are specially blended with anti-foaming additives, which provide consistent fork performance superior to standard fork oil, even under severe temperature ranges.Our special HIGH VISCOSITY INDEX (H.V.I.) Save Share. From our bath oil viscosity-temperature testing we've produced a graph of 8 different lube oils and their viscosity trend from 40°C down to 0°C. 533. In some areas, the fork oil is already heated up past 100°F by the sun before you start to ride which lowers viscosity and softens the fork action. Motorex Racing Fork Oil now has '3D Response Technology'. Reactions: Antwon and DPelletier. It's also a LOT more stable than fork oil. That translates into consistent shock performance and feel despite the ambient and operating conditions. The higher the viscosity rating, the thicker the oil. By using our services, you agree to our use of cookies. The Ohlins R&T oil that's 5wt which I use on my zx6r is 19 cSt (centistoke...unit of viscosity measurement) at 40 degrees C. Traxxion Dynamics recommends using Maxima fork oil 15wt in their instructions that come with their damper rod kit. Google fork oil viscosity chart and look through the table. 01302-10 Front fork fluid # 2 7,0 10 litre For cartridge forks, winter conditions. Find 56901 Fork Oil - Liter/33.8oz, 15WT from Maxima Oils you need and other parts at MaximaUsa.com, Santee, CA, Maxima Oils. According to Peter Verdone's chart, the recommended Motorex product has viscosities of 22.6 and 5.6 cSt at 40C/100C respectively, with viscosity index 200. Front fork stroke Spring spec Free length Spring rate (K1) Setting Spring preload setting (hard/std/soft) Damping adjusting position Fork oil Recommend oil Quantity (each front fork leg) Oil level (Max compression, without spring) Rebound (hard/std/soft) Fully turned in / 1 ¾ turn out / 3 turn out N.A. Yamaha — YP 125 Motorcycle 10W-40/ 20W-50 Motorcycle Fork Oil Motorcycle 10W-40 Yamaha — YP 250 Motorcycle 10W-40/ 20W-50 Motorcycle Fork Oil Motorcycle 10W-40 Yamaha — YP 500 Motorcycle 10W-40/ 20W-50 Motorcycle Fork Oil Check your instruction manual or service book for more information, specifications and volumes. formula far exceeds all OEM specifications and noticeably increases traction and handling for a smoother ride. Have a read of this fork oil wiki for more info. inverting the fork to drain ALL trapped oil. Shear stable, high viscosity index formulation maintains film strength and reduces wear. Hydraulic Fluids for any type of telescopic Forks. Pay particular attention to the viscosity chart near the bottom of the page. This table is sorted by real viscosity (centiStokes), not by nominal weight. We have developed some simple charts to help you select the correct one for your brand of fork, terrain, climate and riding. Found this chart & thought it may shed some light on the fork oil mystery. Brand: Weight: cSt @ 40C: cSt @ 100C: Pour Pt (F) Flash Pt (F) VI: Type: Royal: Twin Disc The “W” in the gear oil viscosity grade is for winter grade, like in engine oil viscosity. The oil is too thick for the small stock orifices. FORK OIL EXPERT 5W . Posted 9 years ago It is very close in specs to the recommended Yamaha 01 fork oil. The advantage of that is that IF you can find an ATF that works you don't have to dick around in future, just buy the same grade without worrying about the manufacturer. Oil viscosity is measured and given a number, which some people also refer to as the “weight” (thickness) of the oil. Fork oil actually is a hydraulic oil and should be listed according to the kinematic viscosity (centiStokes) at 40°C. Reply. Red Line Suspension Fluid / Fork Oil Cross Reference Viscosity cSt @ cSt @ Red Line Equivalent Current Fluid 40°C 100°C V∆T For Fork For Shock Bardahl Fork Oil 5w 19.3 5.1 3.78 LW F XL S Bardahl Fork Oil 10w 35.5 6.9 5.14 Med F LW S Bel-Ray HVI 3w 11.2 4.1 2.73 … Compression (hard/std/soft) N.A. Do not put 10W+ oil in Yamaha forks (trust me on this one), it will slow up the damping and be way too firm. ANSWER: Essentially, the “feel” of the front suspension will deteriorate, the fork oil will get overly dirty, the dirt will cause premature bushing and seal wear, and finally the fork seals will start leaking. Technosynthese (5) 100% Synthetic (4) Viscosity. Even one oil brand can have many choices. And a consistent ride equals a more effective rider. Motorex Fork Oil Now Comes in 4W Viscosity. For instance, an SAE 90 gear lube is comparable in viscosity to an SAE 50 or SAE 40 engine oil. Once the fork seals begin to leak, the fork oil can get on the front brakes resulting in a very dangerous riding condition. You select the correct one for your brand of fork, terrain, climate and.! Leak, the fork leg polaris 's overpriced mystery oil no specs are +... Manufacturers 10W can be heavier than another 15W you need to know the centistoke especially... ( VI ) ( 4 ) viscosity viscosity rating or weight, the thinner the oil, with 24.6! 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