Fitting S1000RR forks to the nineT

50301 Views 149 Replies 44 Participants Last post by Dirtmerchant, 9 d ago

Cruisincruzan

Discussion Starter · Jan 30, 2015

Picked up a set of forks from a 2014 for a good price. The one problem is that the speed sensor clamp does not fit into the space it is supposed to go into. The holes line up but it doesn't sit flush. It looks like with a small amount of grinding of the bracket it will fit but I wanted to know if anyone had done this mod and what their solution was. Thanks

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Karamazov

· #2 · Jan 30, 2015

Cruisincruzan said:
Picked up a set of forks from a 2014 for a good price. The one problem is that the speed sensor clamp does not fit into the space it is supposed to go into. The holes line up but it doesn't sit flush. It looks like with a small amount of grinding of the bracket it will fit but I wanted to know if anyone had done this mod and what their solution was. Thanks

I honestly think you're the first one on the board...

I'm assuming you mean the speed sensor clamp off of your stock forks isn't fitting on the S1000RR forks? There is less space because of the damping adjuster. I'm not surprised that they had to use a different clamp entirely. I'd just stop by your dealer and get the correct clamp, or order online:

Edit: There's also a good chance you'll need to replace the whole speed sensor. Doesn't look like the part numbers match on the S1000RR and the Rninet.

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BaldyDave

· #3 · Jan 30, 2015

+1 on what @Karamazov says.

There's been some discussion skirting this subject (I had wondered if S1000RR internals would fit the stock forks) but no one to my knowledge has done a fork transplant from the RR.... A few riders have used Ohlins forks and report great improvement. For me I doubt that I would spend that much money so your route should be lower cost and perhaps offer a significant improvement in front end stability and dive.

Will be extremely interested to see how this works out. The 9T is a bit heavier so wonering if that'll have much impact on the springing or damping of the 1000RR forks.

Please keep us posted!

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Cruisincruzan

Discussion Starter · #4 · Jan 30, 2015

The 9 speed sensor does not fit the RR bracket, will check on swap potential of an RR speed sensor.

Midnight9T

· #5 · Mar 30, 2015

Interested to know how far you got with this?

Cruisincruzan

Discussion Starter · #6 · Mar 30, 2015

The forks fit fine, loosen the originals and slide in the RR forks. A touch with the Dremel and the speed sensor fits without problems. I just finished wiring up a set of ledrider lr4 lights to brackets on the fork. Once I get my body pieces back from the painter will have a bunch of pics of all the stuff I've done over the winter.

Midnight9T

· #7 · Mar 31, 2015

Certainly interested to know how it rides. Did you swap complete forks to avoid breaking them down. S1000rr internals are pretty cheap over here right now!

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Zanderk

· #8 · Mar 31, 2015

Yep you can pick up a set of RR internals for £80 on Ebay, would seem a cheap way of improving the forks if it were feasible.

I have some miles to rack up for my first service and have K-Tech primed to take the forks apart and measure them up for me to see what's what in terms of the RR internal cartridge.
When I get it done (mid-April if the sun comes out) I'll post to the forum.

Mark

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RobertVp

· #9 · Mar 31, 2015

I'm interested in doing the same thing.

My plan is to get Ohlins forks for my S1000RR then mount the S1000RR forks on my R nineT.

The only modification necessary is a little Dremelling to get the speed sensor to fit?

How is the ride? Given the adjustments available on the RR forks can you get the ride the way you like?

Thanks in advance,

RobertVP

Cruisincruzan said:
The forks fit fine, loosen the originals and slide in the RR forks. A touch with the Dremel and the speed sensor fits without problems. I just finished wiring up a set of ledrider lr4 lights to brackets on the fork. Once I get my body pieces back from the painter will have a bunch of pics of all the stuff I've done over the winter.

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BaldyDave

· #10 · Mar 31, 2015

Zanderk said:
Yep you can pick up a set of RR internals for £80 on Ebay, would seem a cheap way of improving the forks if it were feasible.

I have some miles to rack up for my first service and have K-Tech primed to take the forks apart and measure them up for me to see what's what in terms of the RR internal cartridge.
When I get it done (mid-April if the sun comes out) I'll post to the forum.

Mark

Please do, if there is a cheaper and almost as effective way of upgrading the forks I'm absolutely interested!

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Zanderk

· #11 · Mar 31, 2015

I don't suppose a BMW dealer would know by any chance do you think ?

BaldyDave

· #12 · Mar 31, 2015

Zanderk said:
I don't suppose a BMW dealer would know by any chance do you think ?

I did ask mine, but got a vague answer. They said there have been several revisions of the S1000RR forks over the years so you would have to get compatible internals. They couldn't tell me what would fit and what would not.....

RobertVp

· #13 · Mar 31, 2015

The S1000RR forks have the compression adjuster at the bottom of the fork. I'd be surprised if the RR internals would fit in the R9T stanchions.

RobertVP

BaldyDave said:
I did ask mine, but got a vague answer. They said there have been several revisions of the S1000RR forks over the years so you would have to get compatible internals. They couldn't tell me what would fit and what would not.....

Zanderk

· #14 · Mar 31, 2015

Hmmmm I know K Tech will be able to suss it but obviously they'll want to sell a cartridge replacement kit ala Ohlins, etc
I'll see what I can find out. Alternatively I could track down an 'independent suspension expert ' but I'm a bit wary on that front after seeing some of these operate at track days. I'll go down the KTech route and see where that leads. Oh and Dave I've got the Extreme hugger so I'm in for a laugh fitting it though Bose has been very helpful. Slight thread digression my apologies.

Mark

Cruisincruzan

Discussion Starter · #15 · Mar 31, 2015

I replaced the entire forks and except for the slight grinding to the speed sensor bracket they fit just like the OEMs. Have no body parts on the bike yet as they are still at the painter so I have not ridden it yet.

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LionCity9T

· #16 · Jun 23, 2015

Bumping up an old thread to see how your experience is like with the forks? A cheap-and-good front suspension upgrade is much welcomed.

Cruisincruzan

Discussion Starter · #17 · Jun 23, 2015

I have found them to feel more planted, firmer, yet more responsive to the rapid sequenced bumps that are produced by what passes as pavement here. There is less dive on braking and the front feels "more connected" to the bike.

My disclaimer, I am not a knee dragger and I wanted something that would improve the stock's feel on crummy pavement. I am pleased with the result.

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Tiago Garcia

· #18 · Nov 1, 2015

Hi Cruisincruzan,

Do you have photos from your suspension mod, especially
the grinding one? Im almost to buy a second hand s1000rr forks...

Thanks.

Kenko

· #19 · Nov 2, 2015

I fitted fork internals from a 2010 RR, yes they wil fit but at the time I did not notice that the end of the forks at the bottom are a different fit. The R Nine as about an inch and a half long shaft which a bolt passes through the fork lowers and secures the fork internals. The RR fork internals do not have this extension which means that these internals sit an in inch or so higher in the legs. None of these things got noticed at the time due to me thinking this is an east peasy job and what's all the fuss about changing fork cartridges etc. I had put the fork oil and capacity that the person who I bought the fork internals from recommended. At first I thought everything was OK, the ride was firmer with no brake dive, it was only when I went on a spirited ride that a couple of things came to light. The ride was way too firm for the roads that I tend to ride on but the biggest problem was running wide into fast corners....extremely dangerous especially when a car is coming the other way. The problem was due to the RR forks sitting too high in the fork tubes, can't see why the R9 tubes would be different to the RR tubes but there is a difference. This causes the RR forks to be under a lot of preload which I could not dial out and the cause of my bike running wide. I have reverted back to the original internals but using 15w fork oil which to me makes for a better ride... I did take photos of the difference between the fork ends but I deleted them from my iPhone ..The ends of the forks cannot be changed due to the ends on the R9 being crimped on ..

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Cruisincruzan

Discussion Starter · #20 · Nov 2, 2015

I did not take pics of the small amount I had to grind to make the speed sensor bracket fit, and my bike is at its winter sleep home so I cannot take any pics. If you put the speed sensor bracket in place it will be obvious where you have to grind. It is a very small amount of material that has to be removed and does not affect the integrity of the bracket.

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