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

coopz

coopz
active member
active member
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   Front and rear disc rotors Empty Re: Front and rear disc rotors Fri Jan 05, 2018 3:31 am

charlie99

charlie99
VIP
VIP
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%OFront and rear disc rotors 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 ..
    

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

coopz

coopz
active member
active member
thanks for info Charlie much appreciated.


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1985 K100 RS
    

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

Two Wheels Better

Two Wheels Better
Moderator
Moderator
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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1970 R60/5, '77 R75/7-R100, '85 K100'87 K75C, '87 K100RS, '93 K11-K12 Big Block, '93 K1100RS, '95 R100-Mystic, '96 K1100RS, '98 K1200RS, '00 K1200RS, '02 K1200RS, '03 K1200GT, '04 R1150R'04 R1150RT, '05 K1200S, '06 K1200R, '07 K1200R, '09 K1300GT, 2013 R1200RT-P & 2022 S1000XR Triple Black



"It does not do to leave a live dragon out of your calculations, if you live near him."
~J.R.R. Tolkien
    

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

Tom Witt

Tom Witt
active member
active member
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   Front and rear disc rotors Empty Re: Front and rear disc rotors Wed Feb 21, 2018 10:43 am

Point-Seven-five

Point-Seven-five
Life time member
Life time member
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.


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Present:
1994 K75RT
1991 K100RS
1988 K100RS SE

Past:
1994 BMW K75S
1992 BMW K100RS
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

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

Tom Witt

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

    

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

Two Wheels Better

Two Wheels Better
Moderator
Moderator
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.
Front and rear disc rotors 20180112


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1970 R60/5, '77 R75/7-R100, '85 K100'87 K75C, '87 K100RS, '93 K11-K12 Big Block, '93 K1100RS, '95 R100-Mystic, '96 K1100RS, '98 K1200RS, '00 K1200RS, '02 K1200RS, '03 K1200GT, '04 R1150R'04 R1150RT, '05 K1200S, '06 K1200R, '07 K1200R, '09 K1300GT, 2013 R1200RT-P & 2022 S1000XR Triple Black



"It does not do to leave a live dragon out of your calculations, if you live near him."
~J.R.R. Tolkien
    

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

Tom Witt

Tom Witt
active member
active member
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   Front and rear disc rotors Empty Re: Front and rear disc rotors Wed Feb 21, 2018 12:39 pm

Point-Seven-five

Point-Seven-five
Life time member
Life time member
Was the Red Loctite used as a trap to punish owners who didn't use dealer service?


__________________________________________________
Present:
1994 K75RT
1991 K100RS
1988 K100RS SE

Past:
1994 BMW K75S
1992 BMW K100RS
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

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

JR_K100RS

JR_K100RS
Life time member
Life time member
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   Front and rear disc rotors Empty Re: Front and rear disc rotors Wed Feb 21, 2018 6:23 pm

JR_K100RS

JR_K100RS
Life time member
Life time member
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   Front and rear disc rotors Empty Re: Front and rear disc rotors Wed Feb 21, 2018 6:55 pm

Dai

Dai
Life time member
Life time member
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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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
    

14Back to top Go down   Front and rear disc rotors Empty carrier and disc rotor Wed Jul 03, 2019 6:42 am

tezk100rs

tezk100rs
active member
active member
Any one attached a carrier to disc rotor with rivets...wondering what the rivets are made from...looks like some kind of stainless...also wondering if you can buy them ...any one use nuts and bolts to hold rotor to carrier...bike is k100rt 1988...regards Tez

    

15Back to top Go down   Front and rear disc rotors Empty Re: Front and rear disc rotors Wed Jul 03, 2019 7:07 am

Dai

Dai
Life time member
Life time member
I use A2-grade stainless nuts and bolts fitted with a healthy dose of Loctite 641 Threadlock. Done it on BMWs and Moto Guzzis with no problems. There's a minor catch: you will need to use dome-head allen bolts and NO washers to clear the insides of the front forks. Put a washer between the nut and the carrier on the inside of the disc. There's a little more clearance on the rear disc but not much.


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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
    

16Back to top Go down   Front and rear disc rotors Empty carrier and disc rotor Wed Jul 03, 2019 8:26 am

tezk100rs

tezk100rs
active member
active member
Thanks Dai ill give that a go...have to get bike registered so hopefully that work around is allowed regards tez from sydney

    

17Back to top Go down   Front and rear disc rotors Empty Re: Front and rear disc rotors Wed Jul 03, 2019 9:34 am

92KK 84WW Olaf

avatar
Life time member
Life time member
My old Peugeot 405 has the same arrangement on the front discs.

The screws are to stop the disc falling off when you remove the wheel. The wheel bolts are what keep your disc in place. If you put the tapered screws back they don't need to be more than lightly torqued as they cant go anywhere.


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1992 K100LT 0193214 Bertha Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 106,950 miles Deceased.
1983 K100RS 0011171 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 40,490 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 42,640 miles.

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

18Back to top Go down   Front and rear disc rotors Empty Re: Front and rear disc rotors Wed Jul 03, 2019 7:38 pm

Gaz

Gaz
Life time member
Life time member
If you are unfortunate enough to round out the shallow hex in the countersunk screws holding the disk, you can safely drill out the centre of the screw as the depth of the threaded hole in the hub is greater than the length of screw. Then apply heat and a screw removal tool.

Note that this advice is based on my experience when replacing the rear disk on my K1100LT where I was lucky enough to get one out and then was able to measure hole depth versus screw length before attacking the other with the drill. I assume the K100/75 set up is the same.

I've since learned a safe method of heating up the bolts to release the loctite before I round out the the hex in the bolt heads. It is described in Post 8 at this thread.

Cheers


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Gaz
1990 K75 6427509; 1987 R80G/S PD 6292136; 2010 G650GS ZW13381; 95 K1100LT 0232224
    

19Back to top Go down   Front and rear disc rotors Empty Red Loc-Tite heat to remove rear rotor Mon Nov 02, 2020 7:45 pm

AUBIEBMW

AUBIEBMW
active member
active member
Mad I did not heat the recessed hex bolts, one came out with air impact wrench the other rounded out the hex head on the recessed bolt.  I spent 4-5 hours and broke 3 drill bits drilling out out the bolt.  My drill bits were horrible to begin with.  Unfortunately, I did not read this post prior to attempting the removal. 
I actually did not believe I was going to be able to achieve the removal of the bolt!!!
Jim

    

20Back to top Go down   Front and rear disc rotors Empty Re: Front and rear disc rotors Wed Nov 04, 2020 3:35 am

Holister

Holister
Life time member
Life time member
I did my rear disc on the 88 2v a while back. No problems removing the carrier and disc off the FD.
I bought a Metal Gear disc from Show 'n Go in Adelaide. It was a new disc but I'm pretty sure they are M/C wreckers as well.
I think you'd have a little difficulty drilling the rivets out as they're high tensile and there's quite a few. You'll probably go through a few drill bits. I ground mine off with a thin cutting disc but do it on the disc side not the carrier side to avoid damage. Bolts and lock nuts were provided with the disc.


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1989 K100RT     VIN  0097367 (naked)  
1996 K1100RS   VIN  0451808
  Front and rear disc rotors Austra12    Fuel:  95 Octane
Engine Oil: Nulon Full Synthetic 15W50
Gear Box Oil:  Nulon Synthetic 75W90
    

21Back to top Go down   Front and rear disc rotors Empty Re: Front and rear disc rotors Wed Nov 04, 2020 9:20 am

nino

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Life time member
Life time member

    

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