www.boxertrix.com

…this morning I had an appointment at Van Harten for such a RapidBike 1 box for the good ‘ol’ R12S…

…the past few months I heard all kinds of hosanna stories from guys who had fitted this box in their K12R, or -S, or R12S, and therefore I decided to give it a try…

…I must admit I was very skeptic ; because how can a little black box, smaller than a box of cigarettes, make such a big difference, or even an improvement, without changing any of the bike’s hardware parts…

…but it is really true ; I brought a different bike home…

…what an amazing difference. A (stock) R12S runs on a very lean mixture, we all know that. When pulling away at traffic lights, I always had this feeling I needed to give it a bit more throttle to give it a smooth ride. And there is this slight hesitation (in the higher gears) around 5500 RPM if you give it more throttle, and once someone stated on the Pelican that the (stock) exhaust sounds like a empty can of beans when idling…

…well, after 2 coffee, and an hour waiting in Van Harten’s showroom, I could take the S with me. And believe me or not ; it is a different bike !

…so incredibly smooth from zero to redline. Pulling away at the traffic lights : no problem. Just a bit of throttle, and it goes. In the lower gears, hitting the throttle hard, the bike simply launches it self. In six, around 5500 RPM, full throttle : no more hesitation, it just flies…

…it is almost scary when giving full throttle in second gear around 4000 RPM ; so very different from a stock R12S. And these days a lot of us know that a stock R12S for sure isn’t slow, but with this little RapidBike 1 box, it is just amazing how the bike runs…

…when idling ; the sound is much richer. Swing the throttle a bit, and you hear a sound that you’ve never heard before out of the ‘double anus’ can…

…and, you can smell the bike again. There is this burning fuel smell ; I like that. In Holland we have these little roundabouts all over the place ; with a stock R12S in second gear the engine always felt if it was in need of a bit of clutch. Not anymore.
…close the throttle and there is this POP-POP-POP exhaust sound again…

…last week ; I thought of selling both bikes, and bring a 1200RT home, but today, only after a few minutes, I knew enough. The S stays !

…you probably guessed it ; forget all the go-faster hard parts, just add a RapidBike box, and you will be stunned !

…a few pictures :

…a mechanic at work…



…the little black box on top of the ABS unit is the RapidBike1 box. As you see, I still use the stock air filter, just to make sure it is the black box that makes the difference…



…on both sides these O2 sensors are gone…




…all new wiring and plug stuff…



…it sure didn’t came cheap ; but I think it is a really good investment…

Where can you get them from/fitted over here?

Stoney,
There is a link on the GS site to BMW Bike Bits (I think) They are an agent for the magic box I believe.

Peter.

ditto. I looked on website and its all foreign haha.

What was the total cost Rolo?

Did they give any info on power increase or read out on whether teh bike is running rich / lean? What does this box do exactly?

Hi Ron,

You thought of selling the 1200s ?

I thought you were smitten by it since new??

So - how much did the new ECU cost?

Don't you have environmental checks in Holland that would require the llamda sensors to be working??

Not too impressed with the tape around the plug to the ECU though

If it is all it is cracked up to be............. I can see the rest of the trixxers heading for their wallets

I'm always a bit worried by the smell of petrol from a road bike - it makes me imagine "liner-wash", which is okay in a race bike where they renew componants race by race if required, but I don't fancy it on a road bike.

But - glad to hear that you see a real improvement, which should bring a grin back to your face.

Cracking pics as usual

Al

Here it is:

http://www.bmwbikebits.co.uk/shop/search.asp

stoney wrote:Here it is:

http://www.bmwbikebits.co.uk/shop/search.asp

Thanks for the link - I've never seen that site before.

(mind you - you've probably just cost me a couple of hundred quid! )

Al

nearer 500 i think for rapid bike? scary. if it's just piling more fuel in, then its a worry, but if it's actually set up for the bike and runs bang on, then its not much dearer than power commander.
Hmmmm

PBBoxer wrote:nearer 500 i think for rapid bike? scary. if it's just piling more fuel in, then its a worry, but if it's actually set up for the bike and runs bang on, then its not much dearer than power commander.
Hmmmm

You going to be the guinea pig then?

I was more thinking of a group buy. £376 is a bit bloody steep

Plus dyno time

Hobbsport here we come, although i know of a new place and he is deperate for business

PBBoxer wrote:I was more thinking of a group buy. £376 is a bit bloody steeps

There's a thought.

Have you ridden it with the full system on yet? Its a huge improvement anyway - RP3 might just be perfection...you never know!

Yes, definite and marked improvement to be honest, with a pipercross filter also.

Would be great to know the fuelling is working right though and prevent lean spots. The adverts on that page say they stick a map on the box for your bike setup, however also that they only give you approx 10% movement either way.
I would have hoped that if we are to g via a dyno road tuner that we'd be able to get it set for optimum.

Ron, sounds like you are experiencing the same difference I was feeling with the Foster chip in my R11S.

For all those wanting one, you can order one in the US from Robert Foster for $280 (sorry Ron). www.fosterrad.com robert@fosterrad.com. Say hi from me if you contact him please. If you mention the Dutch guy he should know who it is:)

throttlemeister wrote: If you mention the Dutch guy he should know who it is:)

Who?........ Hertz Van Rental?


Al