BMW K bikes (Bricks)

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1Back to top Go down   Rear Shock Empty Rear Shock on Tue Oct 31, 2017 2:54 pm

tagaz

tagaz
Silver member
Silver member
Pardon me if this should be posted elsewhere.

What is the knurled knob on the bottom of this shock.

TIA for any and all replies,

Troy

Rear Shock 20171011

    

2Back to top Go down   Rear Shock Empty Re: Rear Shock on Tue Oct 31, 2017 4:52 pm

BobT

BobT
Life time member
Life time member
Rebound damping adjustment.

    

3Back to top Go down   Rear Shock Empty Re: Rear Shock on Tue Oct 31, 2017 4:52 pm

WoodyAUK75

WoodyAUK75
Silver member
Silver member
Judging by its position, I would say it is for draining or adding oil.

    

4Back to top Go down   Rear Shock Empty Re: Rear Shock on Tue Oct 31, 2017 6:40 pm

BobT

BobT
Life time member
Life time member
@WoodyAUK75 wrote:Judging by its position, I would say it is for draining or adding oil.
No definitely an adjustable damping knob. Not possible to add oil to the bottom of a shock.

    

5Back to top Go down   Rear Shock Empty Re: Rear Shock on Tue Oct 31, 2017 7:19 pm

Dai

Dai
Life time member
Life time member
Bob's right.


__________________________________________________
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
    

6Back to top Go down   Rear Shock Empty Re: Rear Shock on Tue Oct 31, 2017 10:34 pm

JR_K100RS

JR_K100RS
Life time member
Life time member
has it been mounted upside down ? , my aftermarket shock is the other way around , remembering all that logic about unsprung weight etc , fix the heavier moving part to the frame , the lighter moving part to the wheel

John Re

Melbourne Australia


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

7Back to top Go down   Rear Shock Empty Re: Rear Shock on Wed Nov 01, 2017 1:29 am

Laitch

Laitch
Life time member
Life time member
@JR_K100RS wrote:has it been mounted upside down ?
Different brands of shocks have differing mounting positions. A Progressive 465 gets mounted piston upward. The K75 riders manual shows the stock shock mounted piston downward.


__________________________________________________
1995 K75 81,000 miles
Rear Shock Usa-lo10
    

8Back to top Go down   Rear Shock Empty Re: Rear Shock on Wed Nov 01, 2017 4:36 am

BobT

BobT
Life time member
Life time member
Unsprung weight! Your'e having a laugh. This is a BMW K100 with a wheel that weighs in at twice what my Ducati does, and a shaft drive that might as well be made of cast iron.
The popular RAM shock is almost identical to the one in the picture and is mounted that way up.

    

9Back to top Go down   Rear Shock Empty Thank you for the replies on Wed Nov 01, 2017 2:04 pm

tagaz

tagaz
Silver member
Silver member
Thanks to all who have replied.

I believe Bob is correct on this one.

I will experiment with turning it a bit each way and see what effect it has.

First must find the source of the fluid leak from the fd.

Regards,

Troy

    

10Back to top Go down   Rear Shock Empty Re: Rear Shock on Wed Nov 01, 2017 4:18 pm

Point-Seven-five

Point-Seven-five
Life time member
Life time member
@BobT wrote:Unsprung weight! Your'e having a laugh. This is a BMW K100 with a wheel that weighs in at twice what my Ducati does, and a shaft drive that might as well be made of cast iron.
Exactly!!!


__________________________________________________
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   Rear Shock Empty Re: Rear Shock on Wed Nov 01, 2017 6:55 pm

JR_K100RS

JR_K100RS
Life time member
Life time member
Ouch ! , er yup I was having a laugh ! Embarassed

John Re

Melbourne Australia


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

12Back to top Go down   Rear Shock Empty Re: Rear Shock on Sun Nov 26, 2017 5:10 pm

Two Wheels Better

Two Wheels Better
Moderator
Moderator
@tagaz wrote:I will experiment with turning it a bit each way and see what effect it has.
Troy
I think you will find that turning the knurled knob to the left (anti-clockwise) will deliver a slightly softer or slower feel to the ride and to the right a firmer, or quicker response. I usually make a large adjustment rather than small steps so I can more accurately gage what changes my adjustment has rendered. With small steps you might not feel much change at all.


__________________________________________________

“Some people see things that are and ask, ‘Why?’. Some people dream of things that never were and ask, ‘Why not?’. Some people have to go to work...

~George Carlin

1970 R60/5, OZ '77 R75/7-R100, '85 K100'87 K75C, OZ '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-Polizei  - Beemers owned still or sold.

    

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