
We may not be able to help you find the fork oil. Let’s say such a situation arises and you can’t find fork oil in the market.īut you desperately need it or at least an alternative for it. Here’s a video by Partzilla that explains how you can choose the weight of your fork oil-Ĭonsidering all that, sometimes finding the right fork oil is difficult. Your bike model, the consistency you need in your suspension gear, things like that. To find an appropriate fork oil you’d need to know more about your bike. What’s even more troublesome is that different brands have different weight measurements of them. The weight measurement of fork oil is quite complicated. But so is finding a substitute for fork oil for your mountain bike. Understanding the differences in forks like 100mm vs 120mm travel forks can be challenging. Wanna learn more about the alternatives? Then keep reading our piece till the end.

As for 10wt, ISO 32 hydraulic oil would be a closer match. For 5wt you can use ISO 15 or 22 hydraulic oil. On the scale of fork oil’s viscosity, it would be 7.5 wt. So, what are the mountain bike fork oil substitutes (5wt, 10wt and all the other variants of oil)?įor fork oil substitute you can use Automatic Transmission Fluid (ATF). There are other types of fluids that can provide you with the same viscosity. This consistency comes from the viscosity of the fork oil. The oil inside the fork then moves around and provides the damping and consistency.

Will see how it goes.The forks in your bike move up and down when it faces collisions. I expect to use a slightly stiffer compression/rebound setting over the standard settings. I am about 100kg and will put in a 22.7 over the weekend. You need to check the manufacturers' data sheets to be sure not to get oranges instead of apples. Will that increase your damping? NO! The 10W from Castrol has only 15.00 To make matters even more complicated, the Castrol Synthetic Fork Oil 5W has 28 and in 10W it is 42.00 The 7.5W Motorex Racing Fork Oil has 35.9 while the 10W Silikolene Fork Oil has 34.90 are a couple charts listing a bunch of fork oils and their Let's say you replace it with 10W from Castrol. If you want a apple-to-apple comparison you need to look at the viscositiy the oil has at 40☌ SUZUKI FORK OIL L01 (the one recommended in the Workshop Manual) has 15.50 As was suggested here, it is a 5W oil. Unlike motor oil, there is no viscosity standard for fork oil.
