1. Ohlins Spring Rates

For some unknown reason Ohlins uses it’s own numbers to label rate, but below on the rate conversion chart you can cross reference this number. In this case a -34 is a 100nm or 10.19kg or 571lb spring • The /100 is the springs rate in Newton meters, but without the decimal. In this case the /100 means it’s a 100nm spring.

A see-saw so an example is that a subtle nudge spring only 1/8 turn or less on rear can affect front. You also should test with Brand New high quality new fresh tires with proper tire pressure set before each moto or ride per ½ lb increments test with expensive high quality pressure gauge or use nitrogen even better, not those old things that still show tread you had for a few months like above. Much like rear tire wear, maintain your suspension fluid through a detailed professional factory authorized service with same materials and procedures only. To Order Email: sales@propilotsuspension.com. 2018 New SEASON CHANGES QUICKLY!

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The Ohlins standard front spring for the R1200GS is 01096-10 / 52 L404 which is a 5.3 KG spring rate. The Ohlins standard rear spring for the R1200GS is 00698-54. 1091-34/100 is an example of a code you will find on an Ohlins shock spring. Using the below charts you can “decode” what you are looking. Ohlins TTX spring rates. Shock absorber delivered without spring. S Hose mounted hydraulic spring preload adjuster. S1 Electronically Controlled (EC) hydraulic spring preload adjuster. C2 Adjustable high- and low- speed compression damp-ing. Hexagon or slot on the reservoir. C1 Adjustable compression damping. Adjuster wheel or slot on the reservoir.

In 2009 I weighed 195 lbs. Today I weigh 220 without a helmet. The guys at Ted Porter's BeemerShop are recommending a '170' rear spring for my '07 R1200GS. It has BMW adventure cases on it at all times. Empty when I commute they weigh 15 lbs each and 25 lbs each when I'm camping. When camping I also carry a 16 lb duffle.

The rider's preferences are ultimately what matter most. If you continue to have trouble contacting Ohlins USA send me a PM and I'll give you contact info for Mike F. I send nearly all Ohlins inquiries his way. He's an Ohlins guru with few equals. Will you be using the spring on the shock, mounted to the bike, while riding?

You currently have 0 posts. 1091-34/100 is an example of a code you will find on an Ohlins shock spring. Using the below charts you can “decode” what you are looking. • The 1091 refers to the diameter and the length of the spring. Almost all Ohlins springs have a diameter of 57mm so that’s easy, the 1091 in this case means it has a 160mm length (when not on the shock) • The -34 is the spring rate.

I did not see much if any difference. The spring I have is a 00698-64/160 L476. Searching around I see one rider has a 59/150/257 and another has a 39/110 L213. The problem is almost no sag when riding alone (15mm).

Many things feel weird if your off on this, the rear effects the front and front can effect the rear, the travel may feel lifeless or too stout, the turn in or balance may be to lazy or too steep. Once within manufacturers range, tuner’s often add or take away a little as ONLY a half turn at a time more or less slight turns to further benefit their use. A) You can exactly measure the free length of the spring usually in (mm) while off shock. B) Installed on shock which is slightly compressed example maybe 10mm to 16mm of “Preload” depending on what its going on. C) Then once all back together field check with some pretty exact measurements of “rider sag” meaning fully suited up with about 2/3 to 1/2 fuel load which in general terms rider sag is settle from fully extended total travel there is to get started, while staying in the “preload range” listed in step “B” above, and after that is set, the “bike only” or “static” sag should be about 5% -10% of that total travel claimed, or buy some springs!

Today I weigh 220 without a helmet. The guys at Ted Porter's BeemerShop are recommending a '170' rear spring for my '07 R1200GS. It has BMW adventure cases on it at all times. Empty when I commute they weigh 15 lbs each and 25 lbs each when I'm camping. When camping I also carry a 16 lb duffle.

Fun too.:huh I think it will require some paper, a pencil, camera measuring tape, then a computer and some alcohol. You know to keep everything clean.

So, is everyone ready for their homework? Remember to show your work, and remember units are important! I have never measured the sag on my bike.

Ohlins Spring Rates

I told them I weight 220lbs with gear and ride 80% track - 20% street and they got me this spring - 21040-34/100 (TTX GP shock) I am looking at those charts to make sure and can't really understand them DanQ can you please advise me if the spring is right for me? I've been told by others many times that you are a master in suspension stuff. I have called Ohlins, but nobody is picking up the phone, also sent them an email with same question, but I haven't received any response yet (2 days) - I would think that either the 100 or the 105 (very minimal difference) would work for your weight range. The springs are setup in very closely set ranges. If you look at the first post in the thread you posted in yesterday, they show where one spring rate ends, the next starts. Typically, depending on weight, it may very well be possible to use one of about three different springs. The real determining factor will be if you can get the starting sag number.

1091-34/100 is an example of a code you will find on an Ohlins shock spring. Using the below charts you can “decode” what you are looking. • The 1091 refers to the diameter and the length of the spring. Almost all Ohlins springs have a diameter of 57mm so that’s easy, the 1091 in this case means it has a 160mm length (when not on the shock) • The -34 is the spring rate. For some unknown reason Ohlins uses it’s own numbers to label rate, but below on the rate conversion chart you can cross reference this number. In this case a -34 is a 100nm or 10.19kg or 571lb spring • The /100 is the springs rate in Newton meters, but without the decimal.

Have fun riding. Thank you guys!!

Order the springs that match your weight (without gear is what I go by personally) hmm, interesting! Thats how i've thought of it before as well, mostly 'cause i dont always wear full leathers, touring pants dont weigh a thing until now since i dont really do track days i've not gone through the whole measurement thing to figure out sag n' such, i just tune suspension by feel where ever i'm riding, rarely do i need to make further adjustments once i'm happy so its a set it n' forget it scenario aside from the odd 1 click adjustment. To view links or images in signatures your post count must be 1 or greater. You currently have 0 posts.

I'm 170lbs and the 130 sping allows for almost no sag statically. I took my shock to Dan so I could reduce the pre load(you have to dismantle it to do so).

According to that. I'd assume that a.925 would be ur best option. Try and set up ur sag before u start changing springs tho. Well my buddy just got a shock back from Mike with a.90 spring.

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If you continue to have trouble contacting Ohlins USA send me a PM and I'll give you contact info for Mike F. I send nearly all Ohlins inquiries his way.

I know nothing about suspension tuning. I've ridden the bike 50K miles with a '150' spring. In your collective opinion, will the 170 be too stiff?

I'm 170lbs and the 130 sping allows for almost no sag statically. I took my shock to Dan so I could reduce the pre load(you have to dismantle it to do so). Even with the preload backed all the way off its still to stiff. Get the next lowest spring rate! Dan is wrong about this issue.I've reduced the rebound damping to acceptable levels and it helped. Oddly my 1200GSA with Olins is perfect but I have a more sophisticated shock on it. Here is what I know.

But as Dan alluded to, think but don't over-think, sometimes you have to go ride the thing. Research is a good thing but all the fun stuff happens in the lab.

I need a heads up before I call Dan this time. Some additional thoughts, The number we change is the Force due to that rate and preload and sag added, resulting in some big force number.

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1091-34/100 is an example of a code you will find on an Ohlins shock spring. Using the below charts you can “decode” what you are looking. • The 1091 refers to the diameter and the length of the spring. Almost all Ohlins springs have a diameter of 57mm so that’s easy, the 1091 in this case means it has a 160mm length (when not on the shock) • The -34 is the spring rate. For some unknown reason Ohlins uses it’s own numbers to label rate, but below on the rate conversion chart you can cross reference this number.

Also in a steel compression spring you are going to be hard pressed to change this spring rate. That is unless the spring somehow loses its temper, or is compressed beyond its elastic limit. About the only way I guess to do this would be to compress the springs to coil-bind, (coils compressed such that they touch), and then leave them there for a very long time.

This rate can and does change along with the rebound damping rate over use and time as these are a function of the states of the oil, seals, and charging gas. It should be fairly simple calculation to find the close-enough spring rate as a function of sag. Fun too.:huh I think it will require some paper, a pencil, camera measuring tape, then a computer and some alcohol. Mirror driver windows 7 download. You know to keep everything clean. So, is everyone ready for their homework? Remember to show your work, and remember units are important!

In this case a -34 is a 100nm or 10.19kg or 571lb spring • The /100 is the springs rate in Newton meters, but without the decimal. In this case the /100 means it’s a 100nm spring.

There is a specific program for this but the basic idea is to also consider if an internal top out spring is used and what rate that top out spring is within the cartridge or strut and how it actually can effect the actual spring preload. That’s some of the reason why a spring number is only a number in overall feel. (See below TECH for Sample Program Sheet) 4) Above pic shows Primary Spring and Compressed Top out Spring Relationship which effect initial feel and front true preload calculations. 5) 6) 7) Preload on the spring way of Testing and Tuning is far more accurate then trying to roll around field checking rider sag, most often done incorrectly and with worn shock and linkage joints making the measurement not as useful.

I got my Ohlins shock straight from distributor in NC and they were supposed to set the shock spring to my weight. I just wanted to make sure if it's the right one before I install it on the bike. I told them I weight 220lbs with gear and ride 80% track - 20% street and they got me this spring - 21040-34/100 (TTX GP shock) I am looking at those charts to make sure and can't really understand them DanQ can you please advise me if the spring is right for me? I've been told by others many times that you are a master in suspension stuff. I have called Ohlins, but nobody is picking up the phone, also sent them an email with same question, but I haven't received any response yet (2 days). I got my Ohlins shock straight from distributor in NC and they were supposed to set the shock spring to my weight. I just wanted to make sure if it's the right one before I install it on the bike.

He's an Ohlins guru with few equals. No matter, the charts aren't meant as an absolute. The rider's preferences are ultimately what matter most. In similar fashion to most online tyre wear charts, spring rate charts are good starting points, but they are nowhere near being the absolute answer to every problem. My personal opinion is that they are overrated. When picking the correct spring rate for a race application, the exact tyre used, the track conditions and the rider preference are all rated higher than the actual rider weight. Hey I have a question.

The rear wheel tries to come off the ground. Fully loaded is about wright with no pre-load adjustment put in. With suit on I weigh about 210.

For your Weight and Conditions there are many Springs for many things- Most brand new shocks we sell will have the best spring choice determined and preload given your information you provide. There is years of great current data with many others that weigh the same as you, and or have loading or conditions the same as you, so it’s very easy on new shocks or forks when ordered. On some new year model or preowned suspension that you may have you may need to determine more below, and many personal preferences can still apply. The easiest way to check your sag plus this one fits in your tool box drawer, KEEP in MIND that “Spring Preload” is AS or MORE IMPORTANT than JUST Rider SAG. (see Below Pic 7+) Metric whole numbers is the way of the suspension world! Or “inches” if your bike is made out of Wood, maybe run the other way if your suspension guy uses “inches” these days!. Our TECH page may help you with converting rates N/m to kg/mm or to lbs., they are not the same thing, Even today we see people searching for springs and have not realized on many brands the listed rate appears in N/m not Kg/mm so to avoid buying the same thing twice or wrong direction maybe you should know.

Here is what I know. Assuming the Ohlins spring rates have stayed the same since 2005. These numbers are for the standard GS and not the adventure. I feel your pain!! You are right, the spring supplied for the standard GS is way to stiff. I'm 170lbs and the 130 sping allows for almost no sag statically. I took my shock to Dan so I could reduce the pre load(you have to dismantle it to do so).

Even with the preload backed all the way off its still to stiff. Get the next lowest spring rate! Dan is wrong about this issue.I've reduced the rebound damping to acceptable levels and it helped. Oddly my 1200GSA with Olins is perfect but I have a more sophisticated shock on it. 1200gs with olins from Dan Kyle Racing. Am about to send in the rear shock for a second time.

Superbike Supply. I gave them the weight and it came with the.90, but a buddy thought it was too soft so he called Thermosman and he said it may be too soft. I'm hoping ur right though, don't really want to send it back out for a diff spring.Well my buddy just got a shock back from Mike with a.90 spring. He weighs 155. I'm 195 and my.95 spring is pretty much in the middle of the preload range.

The problem is almost no sag when riding alone (15mm). The rear wheel tries to come off the ground. Fully loaded is about wright with no pre-load adjustment put in. With suit on I weigh about 210. I need a heads up before I call Dan this time.

I have never measured the sag on my bike. In 2009 I weighed 195 lbs.

They are only as accurate as your measuring skills, body placement and free play in shock mount bearings. All of those above things are then considered, Visit Our TECH-TOOLs-PICs page for more info on Accurate Spring Rating and Testing and How to determine Preload. 2) 3) Surprisingly we found even major suspension companies and publications not informing their customers about the difference between N/mm and Kg/mm.

He weighs 155. I'm 195 and my.95 spring is pretty much in the middle of the preload range. According to that. I'd assume that a.925 would be ur best option. Try and set up ur sag before u start changing springs tho.You missed my inside joke about the decimal points. A.925 spring would still be soft for the rear To view links or images in this forum your post count must be 5 or greater.

Or both that and add some heat, (that old lowering the car trick form the fifties). Still this will simply shorten the overall length of the spring the rate is constant, (Unless you use heat, then all bets are off which is why that method of dropping a car was a bit hit or miss). Or for all practical purposes a constant. There is a bit of non-linerarity but the affects of that are small, thrid order or so, has to do with damping in the spring itself. If I remember correctly It has been a while since I messed with this stuff. What feel like spring rate change in a coil-over shock system is not the spring rate changing but more likely the compression damping changing.

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I would think that either the 100 or the 105 (very minimal difference) would work for your weight range. The springs are setup in very closely set ranges. If you look at the first post in the thread you posted in yesterday, they show where one spring rate ends, the next starts. Typically, depending on weight, it may very well be possible to use one of about three different springs.

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1200gs with olins from Dan Kyle Racing. Am about to send in the rear shock for a second time. The first time we determined I needed a softer spring. I did not see much if any difference.

(again, I don't judge.) You're asking the shock to perform certain functions, of which the spring is an integral component. What is the weight that will be acting on the spring? But as Dan alluded to, think but don't over-think, sometimes you have to go ride the thing. Research is a good thing but all the fun stuff happens in the lab. Have fun riding.

In this case the /100 means it’s a 10.0nm spring. Pinched from here.

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