BMW K bikes (Bricks)

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1Back to top Go down   New shock from Aliexpress Empty New shock from Aliexpress on Mon Dec 09, 2019 11:38 am

nino

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Hello all,
I tried new shock from Aliexpress. All together 72 euros, shipment more expencive than shock.
Its 360 mm from eye to eye, spring 12 mm, shaft 14 mm, 800 lbs capacity.
I need a litle modification and drilled lower and upper eye from 10 mm originaly to 12 mm needed for K 100.
Its on the bike, I drive it few days now. Impressions: little stiff but bike got much better steering. Shock absorbs very well.
Here is a link
https://www.aliexpress.com/item/32946165352.html?spm=a2g0o.productlist.0.0.33cb6eb2dEhO2K&algo_pvid=10e55dc5-18b3-41b4-9aca-7aac8ca71e1a&algo_expid=10e55dc5-18b3-41b4-9aca-7aac8ca71e1a-2&btsid=051d09eb-28ab-4fc3-b304-50f1cece3cdc&ws_ab_test=searchweb0_0,searchweb201602_10,searchweb201603_53

    

2Back to top Go down   New shock from Aliexpress Empty Re: New shock from Aliexpress on Mon Dec 09, 2019 12:49 pm

brickrider2

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That price is shocking!  Shocked  Do let us know how it performs.


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1996 K1100LT
    

3Back to top Go down   New shock from Aliexpress Empty Re: New shock from Aliexpress on Mon Dec 09, 2019 1:09 pm

nino

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So far so good. There is a possibility to order 325 mm shock with 10 mm spring which is lower and softer but Im happy with stronger version. 
I ll report any problem.

    

4Back to top Go down   New shock from Aliexpress Empty Re: New shock from Aliexpress on Mon Dec 09, 2019 2:39 pm

Laitch

Laitch
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@nino wrote:Hello all,
I tried new shock from Aliexpress. All together 72 euros, shipment more expencive than shock.
Its 360 mm from eye to eye, spring 12 mm, shaft 14 mm, 800 lbs capacity. . . .
What is the outside diameter of the spring, nino?


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1995 K75 77,000 miles
New shock from Aliexpress Usa-lo10
    

5Back to top Go down   New shock from Aliexpress Empty Re: New shock from Aliexpress on Mon Dec 09, 2019 2:50 pm

nino

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Outer diameter 76 mm compared to 68 of original Koni shock. It doesnt disturb right hand panier.

    

6Back to top Go down   New shock from Aliexpress Empty Re: New shock from Aliexpress on Mon Dec 09, 2019 3:31 pm

92KK 84WW Olaf

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The longer one will be for Paralever, the shorter one for Monolever.....good price too.


__________________________________________________
1992 K100LT 0193214 Bertha Alaska 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 105,200 miles
1983 K100RS 0011171 Fricka 606 29,495 miles Damn K Pox Its a Bat outta Hell Now 36,188  miles
    

7Back to top Go down   New shock from Aliexpress Empty Re: New shock from Aliexpress on Mon Dec 09, 2019 6:27 pm

jbt

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A few years ago, a friend of mine bought such a cheap asian shock for his BMW Monolever. He was very happy to show us its good bargain to the annual meeting to persuade us it was a very good idea to save  50% on the price of a shock.
He never attended it.
Ths shock broke when he was riding.
He's still alive, yet. Doctors saved 50% of its brain.
Good bargain.

    

8Back to top Go down   New shock from Aliexpress Empty Re: New shock from Aliexpress on Mon Dec 09, 2019 7:02 pm

JR_K100RS

JR_K100RS
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100% with you jbt , buy it cheap buy it twice ( or three times ) , no such thing as good quality cheap shocks , they are either good or cheap , no way I'd trust this on my bike . My shock story is : 1st replacement was a White Power , expensive and really poor quality , next : fat body Koni , good but way too hard , then an Ikon chrome body ( don't remember the model ) not too bad surprisingly : next another Icon ( searching for something better ) this was the alloy body unit , garbage . Finally bit the bullet and got the shock that I should have bought 25 years earlier instead of the crap WP , an OHLIN , if I listened to my own advice I'd have saved years of screwing around and lots of cash

may the flaming begin

John Re Melbourne Australia


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

9Back to top Go down   New shock from Aliexpress Empty Re: New shock from Aliexpress on Tue Dec 10, 2019 1:39 am

volador

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You guys are raining on Nino's damper thread. Keep us posted on performance Dovidenja

Stock OE Damper length

K100 4V, K1100 (paralever)- 390mm 15.375"

K75, K100 2V (monolever)- 360mm 14.2"

For lowering K75- Progressive Suspensions #412-4016B  13.2"

YSS Suspensions offers many lengths in something like a Z-366 TR

http://www.yssusa.com/series-z.html


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1984 K100RS  1991 K100RS  Reap The Wild Wind... Ever Commute Is An Adventure
    

10Back to top Go down   New shock from Aliexpress Empty Re: New shock from Aliexpress on Tue Dec 10, 2019 4:36 am

nino

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I have few chinese items on my old K. 

Handlebar risers 20 US dolars - perform as it should

Intank fuel pump  22 USD - 1 year in place perform better than old original

Now shock absorber - craftmanship looks very well, drive feeling rock solid. Will it break and kill me? I dont believe it looks overconstructed

Cross your fingers for me

    

11Back to top Go down   New shock from Aliexpress Empty Re: New shock from Aliexpress on Tue Dec 10, 2019 6:47 am

MartinW

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Nino you need to get a Chinese rear master cylinder $15.00 Au. And I've happily been running a Chinese OEM copy fuel pump since July 2017. And I'm in the process of upgrading my 4.5" Chinese Fodsports GPS now 4 years old and can't get map updates as it runs on Windows CE 6.0 easily. Upgrading to the new 5" Fodsports running Android. I run RAD rebuilt OEM shocks which are upgraded from OE.
Regards Martin.


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K75s Hybrid
    

12Back to top Go down   New shock from Aliexpress Empty Re: New shock from Aliexpress on Thu Dec 19, 2019 4:15 am

nino

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Hello Martin, do you have any reccomendation for rear brake cylinder? Link maybe?

    

13Back to top Go down   New shock from Aliexpress Empty Re: New shock from Aliexpress on Thu Dec 19, 2019 5:08 am

Woodie

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This looks like the one a bunch of us have been using.  Looks like you can get powder coated in black which saves you the time of painting it black to match the original.


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1985 K100RT
52667
"Keep your stick on the ice.  We're all in this together."  Red Green
    

14Back to top Go down   New shock from Aliexpress Empty Re: New shock from Aliexpress on Thu Dec 19, 2019 5:10 am

tinyspuds

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https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fulk%2Fitm%2F323868836265

I’ve been using one like this about 5k miles. Very pleased. NB. You need the one with slotted mounting holes.

I also got a barbed reducer to splice the hoses and reuse oem reservoir.


__________________________________________________
1985 BMW K100RT + Hedingham HUB and LL’s. VIN 0028106. (Not blind to the irony of an April 1 production date).
1954 Royal Enfield 350 Bullet. Original.
    

15Back to top Go down   New shock from Aliexpress Empty Re: New shock from Aliexpress on Thu Dec 19, 2019 5:34 am

nino

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How did you connect to foot pedal?

    

16Back to top Go down   New shock from Aliexpress Empty Re: New shock from Aliexpress on Thu Dec 19, 2019 5:36 am

tinyspuds

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Nino There are a few threads on here called chinese master cylinder or similar and a few different ways to do it. Here’s mine.

https://www.k100-forum.com/t15108-replacing-rear-master-cylinder-with-a-chineese-one#176855

In order to get the correct amount of travel on the push rod the double locknut was a bad idea. It needed too long a pushrod which then ended up binding the brake. I now use a single nut, the oem adjustor bolt, and a depression drilled in the push rod end.

It was super easy, but you must get the push rod length right, and have freeplay at the pedal as per the manual.


__________________________________________________
1985 BMW K100RT + Hedingham HUB and LL’s. VIN 0028106. (Not blind to the irony of an April 1 production date).
1954 Royal Enfield 350 Bullet. Original.
    

17Back to top Go down   New shock from Aliexpress Empty Re: New shock from Aliexpress on Thu Dec 19, 2019 6:28 am

MartinW

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Do not use the Chinese supplied reservoir hose, it is not rated for brake fluid. I was doing a check over before a long ride, I saw that the supply hose was moist on the surface. As I gently wiped it the supply hose disintegrated dumping fluid over the floor. If it had done so while I was on my ride,it would have dumped the fluid over my back tyre, with dire consequences.
Regards Martin.New shock from Aliexpress Reserv12
New shock from Aliexpress Reserv13  
Regards Martin


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K75s Hybrid
    

18Back to top Go down   New shock from Aliexpress Empty Re: New shock from Aliexpress on Thu Dec 19, 2019 7:06 am

tinyspuds

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Good catch Martin Thanks


__________________________________________________
1985 BMW K100RT + Hedingham HUB and LL’s. VIN 0028106. (Not blind to the irony of an April 1 production date).
1954 Royal Enfield 350 Bullet. Original.
    

19Back to top Go down   New shock from Aliexpress Empty Re: New shock from Aliexpress on Thu Dec 19, 2019 9:57 am

nino

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Absolutely clear. Thanks.
Few words about new chinese shock. What I like most is much improved steering. By the way in front fork are Wurth Progressive spring. With New shock on the rear bike is much better in every way. No shimmie at 80 kmh and faster in curves.
Its only ten days experience but I am very content.
Best regards

    

20Back to top Go down   New shock from Aliexpress Empty Re: New shock from Aliexpress on Thu Dec 19, 2019 2:31 pm

MartinW

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K75s Hybrid
    

21Back to top Go down   New shock from Aliexpress Empty Re: New shock from Aliexpress on Thu Dec 19, 2019 2:47 pm

Point-Seven-five

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Reply #32 of this thread starts a sequence of posts that show how I put the ChiCom master cylinder on my K75RT. Since then I have put them on three more bikes.  That K75T now has well over 20,000 totally trouble free miles on the master cylinder shown in the thread.

BTW, The modification of the ChiCom cylinder is a lot easier than trying to clean up the bore of the crap Magura master cylinder that came with the bike.

http://www.motobrick.com/index.php/topic,9364.25.html

Boy, I wish I knew about the black powder coat sooner.


__________________________________________________
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
    

22Back to top Go down   New shock from Aliexpress Empty Re: New shock from Aliexpress on Thu Dec 19, 2019 3:20 pm

MartinW

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Because of the location of the rear master cylinder it is subjected to a lot of water spray and crap, as well as salt in countries where they salt roads in winter. Even though I am running a Chicom master cylinder I still have my OEM one in still great condition. In order to keep the cylinder from corroding under the boot, I pack the area under the boot with heavy silicon grease. It stops the ingress of water and crap and prolongs the life of the boot. Even in Qld I've seen rear master cylinders corroded, some with split boots and some with intact boots. Checking the condition of your boot should be part of your service procedures.
Regards Martin.


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K75s Hybrid
    

23Back to top Go down   New shock from Aliexpress Empty Re: New shock from Aliexpress on Tue Apr 14, 2020 11:42 pm

lion1453

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forget the shit its very poor :S

    

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