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Author Topic: 15+ R1 steering damper  (Read 485 times)

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RocketDan

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15+ R1 steering damper
« on: December 08, 2018, 03:50:55 PM »

What are opinions of the stock steering damper vs an aftermarket unit? I have heard rumor of some really fast people still running the stock speed sensitive damper. I wonder if it's adequate or if an aftermarket manual damper would be better.
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MonkeyMan

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Re: 15+ R1 steering damper
« Reply #1 on: December 10, 2018, 06:15:20 AM »

Dan have you noticed head shake and/or other scenarios where you felt the OEM damper isn't working?

FWIW I upgraded my damper to the SD043 model which works with the R1M and I've found it works pretty well. Before upgrading I had minor pucker moments where things seemed 'loose' coming up T5 and under the bridge at RA. After upgrade the front end seemed more 'together' and I haven't noticed anything weird.

If you're looking to upgrade I'd think the manual Ohlins would be a good option as it tucks in where the OEM is now.
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"MonkeyMan" Mike
Sicilian Racing
15 Yamaha R1M
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RocketDan

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Re: 15+ R1 steering damper
« Reply #2 on: December 10, 2018, 06:57:21 AM »

I had a couple moments last season that were a little unsettling. Coming down the hill at South and also going through esses at North.

But no major tank slapped or anything. Not sure if the bike got unsettled and the damper did it’s job or if things could be better. Either way it was causing me to adjust my riding by using less gas in those areas. Curious if I should just deal with it because the stock damper is doing an adequate job and I need to learn how to be more comfortable with the wheel coming up.


Daniel
OTP Racing #14
Yamaha R1
Wilmington, NC
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Upnadam

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Re: 15+ R1 steering damper
« Reply #3 on: December 10, 2018, 09:44:56 AM »

I had some minor issues too, mostly from the front coming down (from being up) in places the ol 750 did not lift. I purchased an Ohlins for mine, will know come April (maybe sooner) if it helped.
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Adam Elkins
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Steve Gould

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Re: 15+ R1 steering damper
« Reply #4 on: December 10, 2018, 03:12:57 PM »

Dan, don’t put a bandaid on a stability problem. What’s your wheelbase? If you stretch it out to around 600 mm, it will be a lot more stable. The trade off being a bit higher steering effort.
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52 Ruhe

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Re: 15+ R1 steering damper
« Reply #5 on: December 10, 2018, 03:47:52 PM »

Steve he can kick the rear up run 320mm eye to eye and it will still be stable and turn a bit easier.
At 600 the front wheel will still lift but does not stay up there like around 540.
Also key is do your core work. Zero weight on or pull on the bars when that front is in the air.  None of us have Joe and Taylor’s issue of Front up so long the front wheel stops spinning. That’s always an interesting landing.
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Mike Ruhe #52

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RocketDan

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Re: 15+ R1 steering damper
« Reply #6 on: December 10, 2018, 04:55:03 PM »

Dan, don’t put a bandaid on a stability problem. What’s your wheelbase? If you stretch it out to around 600 mm, it will be a lot more stable. The trade off being a bit higher steering effort.

I was running stock wheelbase. I just replaced my chain and sprocket and went two extra links with a 42 sprocket. This added about 7mm to the wheelbase. So it will be a little longer for next season.

I haven’t really felt like the bike was unstable. But I’m pretty easy with the throttle. Shoot, I haven’t even ridden past power mode 3... LOL. I plan on changing that next season which I suspect will loft the wheel with more regularity. Wondering if the stock damper is up to it. Don’t want to find out the hard way that it’s crap.

Are you running stock damper or aftermarket?



Daniel
OTP Racing #14
Yamaha R1
Wilmington, NC
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Steve Gould

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Re: 15+ R1 steering damper
« Reply #7 on: December 11, 2018, 10:02:12 PM »

I have an aftermarket damper. It came that way when I bought it. Measure your wheelbase from the center of the swingarm pivot to the center of the axle. I like 600. Guys like Scholtz run a lot longer cause they're way fast and need that stability. Do you have a height adjustable shock? Ruhe said he likes 320. I like a little lower. But if you go 320 you will be in the ballpark.  But dont forget it isnt one size fits all. I'll have to measure my front but I think its 535mm from top of the bottom triple to center of front axle. Again that height combined with the rear height will help stabilize the bike and facilitate turn in. Is your bike tuned well? Why in the heck are you running in pwr 3? Coulda saved money and bought a 600!
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Steve Gould

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Re: 15+ R1 steering damper
« Reply #8 on: December 11, 2018, 10:04:44 PM »

Your stock damper is probably up to the task. If you put in those chassis numbers, you really wont even need it.
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RocketDan

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Re: 15+ R1 steering damper
« Reply #9 on: December 12, 2018, 06:07:59 AM »

I have an aftermarket damper. It came that way when I bought it. Measure your wheelbase from the center of the swingarm pivot to the center of the axle. I like 600. Guys like Scholtz run a lot longer cause they're way fast and need that stability. Do you have a height adjustable shock? Ruhe said he likes 320. I like a little lower. But if you go 320 you will be in the ballpark.  But dont forget it isnt one size fits all. I'll have to measure my front but I think its 535mm from top of the bottom triple to center of front axle. Again that height combined with the rear height will help stabilize the bike and facilitate turn in. Is your bike tuned well? Why in the heck are you running in pwr 3? Coulda saved money and bought a 600!

Thanks for the info, I am already running a longer shock length. 4mm from stock. I will do some measuring and make sure I’m in the ballpark with my chassis.

I’m sure I could have saved money with a 600, but they don’t sound as cool. LOL 
I started with the lower power and just never changed because it was working for me. I know I don’t use the power like it can be used. I like so many other things about the R1, and there was so much improvement I needed in cornerspeed, braking etc, that I’ve been OK holding back the HP. But I know it’s time to take another step which means feeding in the rest of the power.




Daniel
OTP Racing #14
Yamaha R1
Wilmington, NC
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RocketDan

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Re: 15+ R1 steering damper
« Reply #10 on: December 29, 2018, 06:28:19 PM »

I checked my chassis numbers. 524 from top of lower triple to center of the axel. 594 from center of swing arm pivot to center of axel. Shock length seems to be 318.5ish (hard to get exact measurement at the moment). I also run a 200/60 rear.

I decided to go ahead and get an Öhlins damper. I basically wanted one and I couldn’t fine a compelling enough argument to talk me out of it. LOL

Probably some room for improvement on my chassis for additional stability. But after taking off the stock damper and see how much free play it had I’m glad I went with the upgrade. Plus this is the first Öhlins item I’ve ever owned. So I finally have some stickers :)




Daniel
OTP Racing #14
Yamaha R1
Wilmington, NC
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52 Ruhe

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Re: 15+ R1 steering damper
« Reply #11 on: December 30, 2018, 09:07:10 AM »

You should double check that eye to eye length on the shock Dan that sounds long for a stock shock. It’s height adjustable but with a safe amount of threads I think the longest you can get it is 315. I know it doesn’t sound like much but little things can make or break ya. I will see if I can find more concrete max length numbers.

This is out of a Ohlins unit as typically delivered (the sell a more adjustable “long” eyelet)
Notice how little thread they find acceptable to extend.




Where are your forks relative to the top clamp? Flush?

539 F
319 R looking to go a bit longer now that I have rear sprung better.

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Mike Ruhe #52

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RocketDan

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15+ R1 steering damper
« Reply #12 on: December 30, 2018, 10:33:10 AM »

Here is a picture of the shock. It’s about 4mm longer than stock.



Here are the forks. I went down one line. Just above flush, lowered them to right where the fork starts to taper down.




The shock length over ridden for two years. Last year I dropped the forks to this height. This season will be first with the slightly longer wheelbase.

Daniel
OTP Racing #14
Yamaha R1
Wilmington, NC
« Last Edit: December 30, 2018, 10:35:08 AM by RocketDan »
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52 Ruhe

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15+ R1 steering damper
« Reply #13 on: December 30, 2018, 07:49:33 PM »

So flush or even just below flush 1mm see where that gets front.
When you can pop that shock out and measure center of eye to center (make sure to measure a true center to center 1/4 drive extensions through mounts so you don’t have to bow tape is more accurate. I have a big vernier caliper)

Let me know what your front measures once you push fork tubes and we can figure shock. Get wheel back at least 5mm go to smaller rear sprocket and move at least to power 2
« Last Edit: December 30, 2018, 07:58:37 PM by 52 Ruhe »
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Mike Ruhe #52

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RocketDan

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Re: 15+ R1 steering damper
« Reply #14 on: December 31, 2018, 05:36:13 AM »

Thumbs up


Daniel
OTP Racing #14
Yamaha R1
Wilmington, NC
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