BMW K bikes (Bricks)

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1Back to top Go down   Track Bike Build Empty Track Bike Build Fri Jun 25, 2021 10:22 pm

floyd

floyd
Life time member
Life time member
There are two kinds of people in this world. Those who post stories and photographs of the bike build they have just conquered - and those who merely ruminate, speculate, and postulate...


So let me tell you my plans!


But! rest assured dear reader, this build will most certainly happen, failing some sort of curse or cataclysm that is. You see parts have been ordered, donors have been recruited, enthusiasm has been amassed. And behold! The title page of the project’s ledger proudly states – “TRACK BIKE”

Perhaps I am having a millennial's early phase, midlife crisis. Approaching 40 (oh my), suitably mortgaged, the proverbial bun is well and truly in the oven – and now all I find when I stare into the abyss is a terrible figure, beckoning me forward with one of its Dainese gloved skeletal hands, and a pair of crusty leathers held out in the other.

So I ask the wife, who am I to protest such primal visions? She, but of course, was forced to sympathise with my predicament and indeed come to see the sense in what can be the only solution – A Franken-K-80’s-Style-Track-Weapon! And they all lived happily ever after.


The basic recipe has been settled upon.


Frame – K1100 – The most developed and beefiest of the steel K frames, and I have one gathering dust in my mums shed (see, Im a good millennial)

Forks – K1100 Marzocchis, potentially with a set of Andreani fork cartridges to bring complete adjustability. I didnt want to go down the USD route for a number of reasons (drastic change of geometry, the ‘zocchis are pretty good, 80’s aesthetic etc)
Track Bike Build Cartuc10

Engine – K1200 – because 120hp and Motoronic 2.4. Will use the 1200 ecu, throttle bodies etc but will use the 1100 airbox

Wheels – K1200 – because good rubber options

Final drive – K100 Monolever – because I like them more then para’s - and I have a RAM shock for a mono.


Will use BSK Speedworks rearsets, I have a S1000RR front master cylinder and clutch perch, will get a Domino throttle too. There is also a Chinese alloy ebay radiator coming.


Track Bike Build Images10


Here is the K1200 donor - she will be offering her howling heart, soul, and, ur, feet to the cause.
Got it cheap, in nice enough nick to go on and live another life, but not nice enough for anyone to get their knickers in a knot at my savagery. Will be selling what is not used.

Track Bike Build K1200_10


The 1200 comes with this near new Dominator brand full exhaust - header, collector and muffler. Reckon I should be able to use it on the track bike.
Track Bike Build 06_oval_11_6


I would love to own a mill and a lathe and posses the skill to make nice parts, but alas I cant find anyone to swap my left nut with, and no matter how long I wait at the crossroads, the devil just dont show. So, will use these clip-ons and top triple clamp on the 1100 forks instead.
Track Bike Build 3-455-scaled
Track Bike Build 1-601-scaled



Will then need to find some suitable body work from a local race fairing supplier. There is way more choice for this in Europe but postage will be insane, so will just have to make do.

The goal is for it to be as stripped down as possible but still with ability to perhaps one day wire in an m-unit and some lights, and rego it. But regular track use is the primary goal. Will be taking plenty of ahhhh inspiration, yeah inspiration from the BSK bikes and the Cobas replica Wink and a big shout out to TWB and his magnificent big block build - much info will be gleaned from there for sure.

Will be making a start on all this quite soon, just need to get home from here in the Top End to my workshop and the myriad packages awaiting my blade!


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K100 with lots of K1100 bits - mongrel of a thing...
    

2Back to top Go down   Track Bike Build Empty Re: Track Bike Build Sat Jun 26, 2021 5:25 am

Dai

Dai
Life time member
Life time member
Track build... in Oz all I could visualise was a dirt bike and I was getting more and more confused right to the last line! Track Bike Build 44271


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1983 K100 upgraded to K100RS spec, 1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500
    

3Back to top Go down   Track Bike Build Empty Re: Track Bike Build Fri Jul 02, 2021 9:04 am

Laitch

Laitch
Life time member
Life time member
I—for one—am 100% in support of your making it into the first category, floyd! cheers


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1995 K75 81,000 miles
Track Bike Build Usa-lo10
    

4Back to top Go down   Track Bike Build Empty Re: Track Bike Build Fri Jul 02, 2021 10:25 am

Snowman

avatar
active member
active member
All the items I have purchased from BSK have been great quality, especially the rear sets. Being guilty of K-Bike savagery myself I support your plans 100%. Welcome to the asylum.

    

5Back to top Go down   Track Bike Build Empty Re: Track Bike Build Fri Jul 02, 2021 12:50 pm

Triple B

Triple B
active member
active member
Love it. Just finishing my Dakar inspired K75 then moving on to a BSK inspired Endurance style K75.

Look forward to your updates Track Bike Build 112350

    

6Back to top Go down   Track Bike Build Empty Re: Track Bike Build Mon Jul 05, 2021 7:07 am

Cgom0070

Cgom0070
New member
New member
Really looking forward to see this build progress.

My k100 is arriving next week. It’s already had quite a lot of work on it and my changes will be mostly cosmetic, and I want to get the handlebars changes ASAP so your info here is super useful. 

Good luck
C

    

7Back to top Go down   Track Bike Build Empty Re: Track Bike Build Mon Jul 05, 2021 3:14 pm

jbt

jbt
Platinum member
Platinum member
Don't expect stacking parts to make a good track bike. For example, your S1000RR master cylinder is probably very good for the S1000RR brakes, but what about the K11 calipers?

À lot of the K1200 powers comes from its airbox. Using the K11 airbox will reduce power.
Instead of spending money on eBay crappy but shiny exhaust, use first the OEM exhaust. I don't know in OZ, but in Europe noise regulations are very drastic on tracks, some OEM exhaust are even too noisy to allow access on the tracks, so aftermarket or so-called racing exhausts are useless. Furthermore, most of (all of) aftermarket exhausts give a loss of power at any revs but the top. So you figure you gained a push whereas you lose in fact everywhere but at the red line...
Once your setup is complete with OEM exhaust, then put money in a real tailor made exhaust that will compensate the defects appeared on the first runs (Those from the airbox misfit, for example).
Or in good tyres, you'll save much more seconds for the money than you'll do with any exhaust!
Good suspensions are also an interesting idea. The K11 Marzocchi is very limited and prone to rapid wear of the tubes. But they are based on the very good M1R (same stanchions, same triple trees, but different hydraulics) and can easily be converted. M1R were equipping Ducati (907, 851), Guzzis (Daytona)...
Yet Marzocchi is dead now and it may be difficult to find parts for maintenance.
My 2 cents...


__________________________________________________
Let us enjoy the transient delight
That fills our fairest day.
    

8Back to top Go down   Track Bike Build Empty Re: Track Bike Build Mon Jul 05, 2021 6:30 pm

floyd

floyd
Life time member
Life time member
jbt wrote:Don't expect stacking parts to make a good track bike. For example, your S1000RR master cylinder is probably very good for the S1000RR brakes, but what about the K11 calipers?

À lot of the K1200 powers comes from its airbox. Using the K11 airbox will reduce power.
Instead of spending money on eBay crappy but shiny exhaust, use first the OEM exhaust. I don't know in OZ, but in Europe noise regulations are very drastic on tracks, some OEM exhaust are even too noisy to allow access on the tracks,  so aftermarket or so-called racing exhausts are useless. Furthermore, most of (all of) aftermarket exhausts give a loss of power at any revs but the top. So you figure you gained a push whereas you lose in fact everywhere but at the red line...
Once your setup is complete with OEM exhaust, then put money in a real  tailor made exhaust that will compensate the defects appeared on the first runs (Those from the airbox misfit, for example).
Or in good tyres, you'll save much more seconds for the money than you'll do with any exhaust!
Good suspensions are also an interesting idea. The K11 Marzocchi is very limited and prone to rapid wear of the tubes. But they are based on the very good M1R (same stanchions, same triple trees, but different hydraulics) and can easily be converted. M1R were equipping Ducati (907, 851), Guzzis (Daytona)...
Yet Marzocchi is dead now and it may be difficult to find parts for maintenance.
My 2 cents...

Mate I only expect to have a bit of cheap fun - in the shed and on track. Im not breaking any records, or breaking new ground - this has all been done before. I wont address your points one-by-one but I will say that has all been considered and taken into account - and as Ive said, I am following in the well trodden and track proven footsteps of others. Im sure many issues will be encountered but that is the fun and the journey. Oh and the exhaust is actually a really nice piece from the Netherlands. Peoples in 1200 land seem to like them. Worth the price of admission for the headers and collector alone - especially when it was free.


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K100 with lots of K1100 bits - mongrel of a thing...
    

9Back to top Go down   Track Bike Build Empty Re: Track Bike Build Mon Jul 05, 2021 9:17 pm

charlie99

charlie99
VIP
VIP
this should be fun Floyd mate
ill be watching for sure


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cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OTrack Bike Build Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

10Back to top Go down   Track Bike Build Empty Re: Track Bike Build Mon Jul 05, 2021 10:38 pm

caveman

caveman
Platinum member
Platinum member
Me too!

Fun and moto cycle should be together as much as possible, you go for it brother.

    

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