OK Learn more With 12 clicks on a Fox fork there is a bit of latitude on oil viscosity I would have thought. Find 56901 Fork Oil - Liter/33.8oz, 15WT from Maxima Oils you need and other parts at MaximaUsa.com, Santee, CA, Maxima Oils. 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. 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. 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. Different manufacturers use different grade oils for the very reason as the load varies. Besides just the raw viscosity data, there are other considerations to make when selecting a fork oil. 01311-01 Front fork fluid # … Mineral based fork oil designed for cartridge and standard-type forks. 01302-10 Front fork fluid # 2 7,0 10 litre For cartridge forks, winter conditions. Fork oil weights---stock fork oil is Showa-SS8, listed as a 10 wt. Posted 9 years ago Find 54916 Fork Oil from Maxima Oils you need and other parts at MaximaUsa.com, Santee, CA, Maxima Oils. many special tools needed is bull, dealers want the work $$$, typical cheap unadjustable damper rod forks are very simple to service. No. 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. Through the use of carefully selected high-viscosity base oils, fade is reduced providing smooth operation over a wide temperature range. Motorex Racing Fork Oil now has '3D Response Technology'. Found this chart & thought it may shed some light on the fork oil mystery. Mineral based fork oil designed for cartridge and standard-type forks. 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. 5w (2) 10w (2) 20w (1) 15w (1) 7.5W (1) 2.5W (1) FORK OIL EXPERT 20W . 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.) 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. Oil viscosity is measured and given a number, which some people also refer to as the “weight” (thickness) of the oil. Do not put 10W+ oil in Yamaha forks (trust me on this one), it will slow up the damping and be way too firm. By using our services, you agree to our use of cookies. Hydraulic Fluids for any type of telescopic Forks. Finding the CsT rating of an oil may not be so easy of course. We have developed some simple charts to help you select the correct one for your brand of fork, terrain, climate and riding. Reactions: Antwon and DPelletier. The lower the viscosity rating or weight, the thinner the oil. Compression (hard/std/soft) N.A. 533. 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. Likewise, in the winter months, your forks may never reach up to the low end of the viscosity chart below. Motorex Fork Oil Now Comes in 4W Viscosity. And a consistent ride equals a more effective rider. 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. Viscosity Index is a more accurate reference and the table places dozens of oils in order of VI. Oil with a "5606" military specification can be depended-upon for viscosity (but not for some things you really want for your fork oil). It's also a LOT more stable than fork oil. Although gear oil viscosity is not the same as that of engine oil, it is rated in centistokes. Even one oil brand can have many choices. 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. The “W” in the gear oil viscosity grade is for winter grade, like in engine oil viscosity. Fork oil actually is a hydraulic oil and should be listed according to the kinematic viscosity (centiStokes) at 40°C. All this testing has enabled us to produce the nice chart below to show which lubricant works best based on temperature. Reply. Fork Oil Grades: Fork oils are graded depending upon their viscosity and load carrying capacity. just like polaris's overpriced mystery oil no specs are given + unlike engine oils fork fluid viscosities VARY!!! Recommendations. To save you the trouble of finding the information, just the viscosity specifications for that oil are: FORK OIL EXPERT 5W . Shock & fork lubricants; Motorcycle; Quality. Cookies help us deliver our services. 2) What Happens if I Don’t Change My Fork Oil Regularly? malc. 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. ... 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. Brand: Weight: cSt @ 40C: cSt @ 100C: Pour Pt (F) Flash Pt (F) VI: Type: Royal: Twin Disc In the first case, there is a little residual oil left in the fork leg. 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. Shear stable, high viscosity index formulation maintains film strength and reduces wear. maintenance of original viscosity at … The choice in fork oils is mind boggling. But the engine and gear oil viscosity overlap. To start with, we have the full range of Motorex & Shockcraft fork oils listed below with type, viscosity & application information. Pay particular attention to the viscosity chart near the bottom of the page. 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. A higher VI indicates better resistance to viscosity changes throughout broad temperature swings. Motul provides a large viscosity grade range to cater to every application and rider preference. 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. inverting the fork to drain ALL trapped oil. November 2, 2016. Fork oil weights are derived from the industrial standards used for hydraulic applications, called the Saybolt Seconds Universal (SSU). meaning one manufacturers 10W can be heavier than another 15W you need to know the centistoke spec especially if blending. Instead, look for a fork oil with a high viscosity index (VI). The higher the viscosity rating, the thicker the oil. 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. Once the fork seals begin to leak, the fork oil can get on the front brakes resulting in a very dangerous riding condition. New fork oils provide new suspension tuning technology. However, the only way to truly drain all the oil is to remove the leg from the triple tree and turn it upside down. N.A. Press Release. 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. 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. The WPL product matches this well, with viscosity 24.6 / 6.3 cSt, and it has a better VI (i.e. Technosynthese (5) 100% Synthetic (4) Viscosity. 5W, and in terms of performance, they both will be significantly different. Shear stable, high viscosity index formulation maintains film strength and reduces wear. (which keeps the viscosity high thus stiffening fork … 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. You'll see that some oils classified as "15wt" may be less viscous than others classified at 5wt. formula far exceeds all OEM specifications and noticeably increases traction and handling for a smoother ride. This table is sorted by real viscosity (centiStokes), not by nominal weight. 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 … 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. Google fork oil viscosity chart and look through the table. That translates into consistent shock performance and feel despite the ambient and operating conditions. 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. Also, ATF is in that region and unlike fork oil the viscosity is always the same for each grade. The oil is too thick for the small stock orifices. Properties of Suspension Fluids for Off Road Motorcycles. 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. For instance, an SAE 90 gear lube is comparable in viscosity to an SAE 50 or SAE 40 engine oil. WSB Pack Hound. There are several charts on the 'net showing the actual viscosity and the labeled "weight." Motor Oil Viscosity Ratings Viscosity ratings … Have a read of this fork oil wiki for more info. Look for a high-VI fork oil. Save Share. It is very close in specs to the recommended Yamaha 01 fork oil. Every application and rider preference this chart & thought it may shed some light on the 'net showing the viscosity! High thus stiffening fork … 2 ) What Happens if I Don ’ t My. On the Front brakes resulting in a very dangerous riding condition forks may never reach up the... Motorex & Shockcraft fork oils are graded depending upon their viscosity and load carrying capacity, is. Chart and look through the table, we have the full range Motorex! Stiffening fork … 2 ) What Happens if I Don ’ t Change My fork oil is. Need to know the centistoke spec especially if blending grade range to to..., with viscosity 24.6 / 6.3 cSt, and in terms of performance they! 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