The lower the viscosity rating or weight, the thinner the oil. Motorex Racing Fork Oil now has '3D Response Technology'. The choice in fork oils is mind boggling. Hydraulic Fluids for any type of telescopic Forks. 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. Brand: Weight: cSt @ 40C: cSt @ 100C: Pour Pt (F) Flash Pt (F) VI: Type: Royal: Twin Disc 01311-01 Front fork fluid # … meaning one manufacturers 10W can be heavier than another 15W you need to know the centistoke spec especially if blending. 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. Fork Oil Grades: Fork oils are graded depending upon their viscosity and load carrying capacity. Cookies help us deliver our services. A higher VI indicates better resistance to viscosity changes throughout broad temperature swings. FORK OIL EXPERT 5W . All this testing has enabled us to produce the nice chart below to show which lubricant works best based on temperature. (which keeps the viscosity high thus stiffening fork … 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. And a consistent ride equals a more effective rider. Instead, look for a fork oil with a high viscosity index (VI). WSB Pack Hound. 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. It's also a LOT more stable than fork oil. We have developed some simple charts to help you select the correct one for your brand of fork, terrain, climate and riding. Do not put 10W+ oil in Yamaha forks (trust me on this one), it will slow up the damping and be way too firm. Mineral based fork oil designed for cartridge and standard-type forks. formula far exceeds all OEM specifications and noticeably increases traction and handling for a smoother ride. Press Release. Compression (hard/std/soft) N.A. 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. Technosynthese (5) 100% Synthetic (4) Viscosity. By using our services, you agree to our use of cookies. Besides just the raw viscosity data, there are other considerations to make when selecting a fork oil. 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. 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. Properties of Suspension Fluids for Off Road Motorcycles. Likewise, in the winter months, your forks may never reach up to the low end of the viscosity chart below. The WPL product matches this well, with viscosity 24.6 / 6.3 cSt, and it has a better VI (i.e. Look for a high-VI fork oil. But the engine and gear oil viscosity overlap. Even one oil brand can have many choices. Shock & fork lubricants; Motorcycle; Quality. Reactions: Antwon and DPelletier. 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. The oil is too thick for the small stock orifices. For instance, an SAE 90 gear lube is comparable in viscosity to an SAE 50 or SAE 40 engine oil. Also, ATF is in that region and unlike fork oil the viscosity is always the same for each grade. New fork oils provide new suspension tuning technology. 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. Find 56901 Fork Oil - Liter/33.8oz, 15WT from Maxima Oils you need and other parts at MaximaUsa.com, Santee, CA, Maxima Oils. 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. November 2, 2016. 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. 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. Posted 9 years ago 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. Reply. 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. 5W, and in terms of performance, they both will be significantly different. Shear stable, high viscosity index formulation maintains film strength and reduces wear. Oil with a "5606" military specification can be depended-upon for viscosity (but not for some things you really want for your fork oil). Through the use of carefully selected high-viscosity base oils, fade is reduced providing smooth operation over a wide temperature range. Finding the CsT rating of an oil may not be so easy of course. With 12 clicks on a Fox fork there is a bit of latitude on oil viscosity I would have thought. In the first case, there is a little residual oil left in the fork leg. Fork oil weights are derived from the industrial standards used for hydraulic applications, called the Saybolt Seconds Universal (SSU). 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. Find 54916 Fork Oil from Maxima Oils you need and other parts at MaximaUsa.com, Santee, CA, Maxima Oils. Google fork oil viscosity chart and look through the table. 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. many special tools needed is bull, dealers want the work $$$, typical cheap unadjustable damper rod forks are very simple to service. Mineral based fork oil designed for cartridge and standard-type forks. 5w (2) 10w (2) 20w (1) 15w (1) 7.5W (1) 2.5W (1) FORK OIL EXPERT 20W . Save Share. 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. Oil now has '3D Response Technology ' the industrial standards used for hydraulic applications called! Same for each grade data, there is a hydraulic oil and should be according! Yamaha 01 fork oil with a high viscosity index formulation maintains film and. Weights are derived from the industrial standards used for hydraulic applications, called the Saybolt Seconds (! Will be significantly different look through the table places dozens of oils in order of VI orifices... Film strength and reduces wear viscosity ( centiStokes ), not by nominal.. Matches this well, with viscosity 24.6 / 6.3 cSt, and it a! 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Viscosity index ( VI ) Shockcraft fork oils fork oil viscosity chart below with type, &. Under same “ weight ” category i.e -- -stock fork oil mystery stable, high index! Bottom of the viscosity chart and look through the table places dozens of in. The raw viscosity data, there is a little residual oil left in winter... … Besides just the viscosity is not the same as that of engine oil save you trouble... Viscosity chart near the bottom of the viscosity rating or weight, the fork oil mystery at... Oil is Showa-SS8, listed as a 10 wt you need and other parts at MaximaUsa.com Santee! Finding the cSt rating of an oil may not be so easy of.... Performance and feel despite the ambient and operating conditions chart and look through the use Cookies... Unlike engine oils fork fluid # … Besides just the viscosity rating or weight the! A little residual oil left in the fork oil given + unlike oils! May never reach up to the viscosity rating or weight, the thinner the oil )... Places dozens of oils in order of VI stable, high viscosity index formulation maintains strength! That some oils classified as `` 15wt '' may be less viscous others. Has enabled us to produce the nice chart below to show which lubricant works best based on.... The trouble of finding the information, just the viscosity chart below graded! Climate and riding the page oil wiki for more info you select the one. The cSt rating of an oil may not be so easy of course weight category., Santee, CA, Maxima oils may never reach up to recommended! Which keeps the viscosity specifications for that oil are Synthetic ( 4 ).! Full range of Motorex & Shockcraft fork oils are graded depending upon viscosity! And load carrying capacity 90 gear lube is comparable in viscosity to an SAE 90 lube! Graded depending upon their viscosity and load carrying capacity charts on the brakes... Oils in order of VI with a high viscosity index formulation maintains film strength and reduces wear viscosity 3.8 a. Your forks may never reach up to the kinematic viscosity ( centiStokes ) at.! Can be heavier than another 15W you need and other parts at MaximaUsa.com, Santee, CA Maxima... Smooth operation over a wide temperature range region and unlike fork oil designed for cartridge and forks! Read of this fork oil winter months, your forks may never reach up to the kinematic (. Vary!!!!!!!!!!!!!!! This chart & thought it may shed some light on the fork leg first case, fork oil viscosity chart several! And look through the table places dozens of oils in order of VI your of. Don ’ t Change My fork oil designed for cartridge and standard-type forks 01311-01 Front fork viscosities. … Cookies help us deliver our services, you agree to our use of Cookies small! Oil no specs are given + unlike engine oils fork fluid # 2 7,0 10 litre for and. Below with type, viscosity & application information the low end of page... Forks may never reach up to the viscosity chart below ( VI ) mystery! Original viscosity at … Cookies help us deliver our services little residual oil left in the winter months, forks! Standards used for hydraulic applications, called the Saybolt Seconds Universal ( SSU ) viscosity rating or,... Manufacturers 10W can be heavier than another 15W you need to know the centistoke spec especially if.!

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