How to Choose Fork Oil Weight | What Weight Fork Oil Should I Use | Partzilla.com

The right motorcycle fork oil viscosity will vary depending on how and where you ride. The suspension oil viscosity index will give you clues about the weight of the oil and how it will behave across temperature ranges. Two oils, with the same weight but different viscosity indexes, will behave a little differently from each other at the beginning of the ride and then begin to differ substantially as you build heat into the fork.

If you’re moving from the factory recommendation on your fork oil, make small moves. Minor changes can have a big impact, and moving to an oil that’s far off from the manufacturer’s recommendation might not match the application for which the bike was intended.

Talk to us:

[daltonknox]

I bought a new 2003 V-Strom. Impossible to get a test ride, I was relying on magazine reviews. It was initially a love/hate deal. It made me realize that journalists are lying SOBs. One of the many shortcomings was the forks - undersprung and overdamped. Every bump in the road bashed into the frame, but when I hit the brakes hard, it dived so hard that it yanked the bars out of my hands. The cure was Progressive Suspension springs and switching from 15 to 5 weight fork oil. Don't rely on manufacturers to get it right.

[thedailyruns]

W is for viscocity during the winter. You can google for at what temperature the manufacturer tested.

[manakara]

The W is not weight, it is winter. The measured flow of the oil running down a slope at a certain temperature. It is measured cold not hot at normal operating temps. I think at 40f.

[merrillclark]

Great video and explanation of fork oils and their inherent inconsistencies and how they relate to a viscosity index. I'll be checking VI online and hopefully I'll have answer as to which is the best fork oil for my 96 Road King. I learned some good stuff today. Thanks.

[EazyMac]

Very informative video! I'm about to do a front fork rebuild for the first time and I've been researching which fork oil to get. This helps a lot!

[toddboden]

All I've been reading for a Honda grom is to change from stock oil to 20w. Not hearing any issue with handling or any problems. Hondas 5w is definitely too thin.

[davidevans]

Hi I have a 125 kmx wos the best oil for my bike please

[MagnumMuscle]

Dampen=make wet Damp=reduce oscillations
A fork dampens oscillations.
A dampener makes something wet.

[louiegoodwin]

Can't get my fork caps to come loose. Any suggestion. I used a cheater pipe, impact gun, I'm afraid roll break or round odd the but??? Thayns foot the help 2002 VTX 1800S

[Auto_motive]

how much oil should I pour on my motorbike forks? (yamaha yzf r1)

[snainshah]

Sir, kindly tell me iso 32 hydralic oil is suitable for yamaha ybr forks

[itsprivate]

So whats the right viscosity for me. Im a 85 kilos rider and uses my motorcycle on everyday city use

[gaga]

When I bought OEM forks form you, those comes with the oil, ready to install?

[ravikantjangid]

Best fork oil for hero 100 cc bike ..15w or 20w??

[musabmazhar]

Waht fork oil should I add to suzuki burgman uh 200
Thanks alot

[chargel]

thank you very much learn something new again:-)

[FoodStreetRider]

I am from Pakistan and ride 150cc Suzuki Bike, company writes in their manual that use G-10 OIL for fork. Problem is that company dont sells the oil nor they have, so we in pakistan got SAE 10 is that same as G-10 ?

[justintaylor]

What's best for my 2003 Honda vtx 1800s retro spoke .

[nickburkard]

How much would I put in for a cr250 1994

[thewrongbike]

We need to stop saying "weight". W does not mean "weight". It means "winter" I.e. the viscosity when the weather gets cold.