BMW K bikes (Bricks)

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1Back to top Go down   Rear shock replacement  Empty Rear shock replacement Mon Sep 06, 2021 9:25 am

jjfishing

jjfishing
active member
active member
I'm hoping to lower my 87 k100 about 1" to 2". I'm 5'8" and have a hard time balancing it on my tiptoes. The current rear shock isn't stock and measures 14" from mid bolt to mid bolt. Is this as simple as replacing it with a 12" or 12.5" rear shock? Is there anything I would have to do to the front to "balance" it out? I've attached a picture of the current shock in case someone knows a way of adjusting or lowering it.Rear shock replacement  20210611

    

2Back to top Go down   Rear shock replacement  Empty Re: Rear shock replacement Mon Sep 06, 2021 11:04 am

Two Wheels Better

Two Wheels Better
Moderator
Moderator
My recommendation: when in need the search window on the Forum main page will reveal much about previous threads on most any K topic. I've just typed in 'shorter shock' and turned over many rocks to this very subject.

Typically folks loosen the triple clamp screws to allow the fork tubes to slide up - or triple clamps to slide down - but this is not scientific so guess work is required. Also, there's handlebars to whack into should the desired 'level' be further than can be accommodated.

Some years back, and maybe still, Progressive made an approx. 1" shorter shockie for K & Airheads. Your favourite motorbike shop should have a Tucker Powersports catalogue - also online - to peruse. There are other, better, brands out there of course.


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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-P  - Beemers owned still or sold.

~We all believe what we want to believe in - Rob Dickinson
    

3Back to top Go down   Rear shock replacement  Empty Re: Rear shock replacement Mon Sep 06, 2021 11:13 am

moriarti

moriarti
Life time member
Life time member
others have made the point that lowering the rear makes it RAMBO task to put the bike on centre stand. There is a Seat Lowering Kit available but a bit pricey.  At 5,8 myself iv developed the, move you posterior from side to side to gain foot hold Technik. Very Happy Very Happy Elton John type boots can be considered as well Shocked


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1984 k100 rs red/black VIN  0004449
    

4Back to top Go down   Rear shock replacement  Empty Re: Rear shock replacement Mon Sep 06, 2021 11:28 am

92KK 84WW Olaf

avatar
Life time member
Life time member
14" shock sounds too long.

Rear tyre go to 70 profile instead of 80 or 90.

Pull stanchions up 15mm.

Low seat kit option.


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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 37,190 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
    

5Back to top Go down   Rear shock replacement  Empty Re: Rear shock replacement Mon Sep 06, 2021 5:17 pm

MartinW

MartinW
Life time member
Life time member
YSS will do you a custom shorter by 1" shock for a reasonable price. You will have to modify your centre stand legs, the later straight leg stand is easier to shorten. The side stand will have to have it's rubber buffer modified if the side scrapes on cornering.  The side stand lean angle will be reduced so you will have to be careful where you park it on slopes. As per TWB drop the front forks through the trees. As well as thicker soled boots you can add boot lifts. However not all boots will accommodate lifts, try the lifts in boots you intend purchasing. You can have the nose of your OEM seat shaved which allow your legs to move closer together. You can have your OEM seat lowered.
Regards Martin.


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K75s Hybrid
    

6Back to top Go down   Rear shock replacement  Empty Re: Rear shock replacement Mon Sep 13, 2021 1:22 pm

Snod Blatter

Snod Blatter
Life time member
Life time member
I've only been able to drop the yokes down the stanchions about 10mm before the handlebars get in the way, is this a special feature of the RS bars only?


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1989 K100RS SE ABS 8v  VIN: 0149214
Others: 1.5 x Honda CBX250RS-E, '94 CB250, '95 TRX850, '16 Z250SL
http://justbikethings.blogspot.co.uk/
    

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