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1Back to top Go down    Front and rear disc rotors on Fri Jan 05, 2018 3:11 am

coopz

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Hi All, I need to replace the disc rotors they are under spec. Is there an alternative replacement disc that fits? or some second hand good ones from any reader,Im on a budget would like original new but so expensive Cheers Coopz


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1985 K100 RS
    

2Back to top Go down    Re: Front and rear disc rotors on Fri Jan 05, 2018 3:31 am

charlie99

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kmodel beemer bits down the south of nsw offer a rear disk replacement at a cheaper than normal price
drilling out the rivets is required to fit them on but as more than 50 dollars cheaper could be an cost saving ?

https://kmodelbeamerbits.com.au/bmwk-seriesshop.html#!/K75-K100-K1100-K1200-New-Aftermarket-Rear-Brake-Disc-Rotor-P4/p/68896194/category=23450039



btw. I found that the front disks available from motobins (not ebc or original ) were a lot cheaper landed here than many alternatives available , and so far work well , just use the standard pads to protect them rather than sintered pads , which on these tend to squeal at light application .

good luck


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O
    

3Back to top Go down    Front and rear disc rotors on Fri Jan 05, 2018 6:01 am

coopz

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thanks for info Charlie much appreciated.


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1985 K100 RS
    

4Back to top Go down    Re: Front and rear disc rotors on Fri Jan 05, 2018 1:54 pm

Two Wheels Better

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For reference purposes, EBC part numbers are often used by other aftermarket brands to cross with their part numbers. I don't know what your model is but will assume the conversation is around the standard non-floating 285mm front discs and rear disc of most K75/K100-8V and the rear of 16V models, R1100RS Oilhead and the newer K1200RS/GT. These are the 'replica' brake disc, not a wave or petal type. The front 305mm floaters of the 16V models are not included here.

EBC rear non-ABS is MD611 (with carrier) - BMW part number 34 21 2 310 206

EBC front left is MD604LS - BMW part number 34 11 2 316 069 in silver
EBC front right is MD604RS - BMW part number 34 11 2 316 070 in silver
or BMW part number 34 11 1 457 386 (x 2) in black

EBC rear ABS is MD661 (with carrier) - BMW part number 34 51 2 310 305

They all have a retail price of US$224.94 and if anyone needs one or more I can get them to you for $179 each (no sales tax) plus postage to your door.


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Bricks: '87 K100RS & Big Block'93 K11 frame, forks, Paralever & gearbox w/'02 K1200RS motor, brakes & wheels.
Other: '09 K1300GT, '07 K1200R, '04 R1150RT, '95 R100 Mystic & '77 R75/7-R100 dual-plugged w/340 cam, big valves, 40mm carbs & exhaust.
    

5Back to top Go down    Re: Front and rear disc rotors on Wed Feb 21, 2018 10:31 am

Tom Witt

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I hope I'm not beating a dead horse here, but I'm looking at the EBC MD611 to replace my warped/minimum spec rear rotor. If my understanding is correct, it looks like it's mounted to the final drive using the two recessed bolts and then sandwiched using the wheel and the four lug bolts? Am I missing anything? That almost seems too easy, there's gotta be a catch.

    

6Back to top Go down    Re: Front and rear disc rotors on Wed Feb 21, 2018 10:43 am

Point-Seven-five

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The catch is that the countersunk screws that hold the disc are installed with that feckin' red Loctite. If you try to remove them without heating them good and hot first, you will round out the internal hex and create a truly entertaining project.


__________________________________________________
Present:
1994 K75RT
1994 K75S
1992 K100RS

Past:
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

7Back to top Go down    Re: Front and rear disc rotors on Wed Feb 21, 2018 11:03 am

Tom Witt

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Thanks for the info! I KNEW there was a catch. Heating up the bolts I can do. Thanks again.

    

8Back to top Go down    Re: Front and rear disc rotors on Wed Feb 21, 2018 12:05 pm

Two Wheels Better

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Here's an EBC MD611 which will be fitted to my '87 RS later this year. It comes 'complete', ready to bolt on. I use new tapered seat screws each time and never loc-tite, but always a smudge of anti-sieze. They're not coming out with the four lug bolts holding them against the final drive.


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Bricks: '87 K100RS & Big Block'93 K11 frame, forks, Paralever & gearbox w/'02 K1200RS motor, brakes & wheels.
Other: '09 K1300GT, '07 K1200R, '04 R1150RT, '95 R100 Mystic & '77 R75/7-R100 dual-plugged w/340 cam, big valves, 40mm carbs & exhaust.
    

9Back to top Go down    Re: Front and rear disc rotors on Wed Feb 21, 2018 12:33 pm

Tom Witt

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That's kinda what I was seeing/hoping, hence my trepidation about how easy it looked-I've been suckered before... Razz

    

10Back to top Go down    Re: Front and rear disc rotors on Wed Feb 21, 2018 12:39 pm

Point-Seven-five

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Was the Red Loctite used as a trap to punish owners who didn't use dealer service?


__________________________________________________
Present:
1994 K75RT
1994 K75S
1992 K100RS

Past:
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

11Back to top Go down    Re: Front and rear disc rotors on Wed Feb 21, 2018 6:15 pm

JR_K100RS

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G'day Coopz & Tom , when I replaced my front rotors I used "Braking" an Italian brand , similar concept to what Charlie suggested in his response , remove & refit from disc carriers , they work very well . On the rear I also used an EBC complete carrier & disc , straight bolt up and yes look out for the loctite !

John Re

Melbourne Australia


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Diamond Grey ( 617 ) 1987 K100RS ( European Delivery ) Original owner
    

12Back to top Go down    Re: Front and rear disc rotors on Wed Feb 21, 2018 6:23 pm

JR_K100RS

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Found this for the correct Braking disc

http://www.braking.com/catalogue/dettaglio_prodotto.php?codice_articolo=BW02FI

John Re

Melbourne Australia


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Diamond Grey ( 617 ) 1987 K100RS ( European Delivery ) Original owner
    

13Back to top Go down    Re: Front and rear disc rotors on Wed Feb 21, 2018 6:55 pm

Dai

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If you do get stuffed by the Loctite, drill the heads off carefully starting with a 6mm drill bit. That should leave about 5-6mm standing proud. Again, carefully, file a flat on opposite sides until you can just get a 6mm or 7mm AF spanner on there. At this point I was expecting a real fight to get the remains of the bolts out, but they just unwound as easy as pie. I guess that was because you're no longer fighting the stiction/corrosion of the bolt heads against the disc.

And no, I can't see the bloody point of them. Clamped between the wheel and the drive until with four 12mm wheel bolts done up with huge amounts of torque, the brake disc ain't gonna be moving anywhere.


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'83 K100 upgraded to K100RS spec
Others...
'78 Moto Guzzi 850-T3, '79 Moto Guzzi 850-T3 California,'93 Moto Guzzi 1100ie California,
'03 Suzuki Blandit GSF600SK3 (NFS any more because wifey has claimed it)
    

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