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1Back to top Go down   Fitting Bigger Tyres Empty Fitting Bigger Tyres Thu Feb 07, 2013 11:08 am

twincarb

twincarb
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I am currently running 130/90 17 on My rear.... and a 100/90 18 on the front....

It's time to get a larger rear going up to the 140/80 17 my question is can I keep the front as stock as it's got more meat on it than a Rib Eye Steak so don't want to bin it yet....

forgot to mention I am using BT45's at the moment...


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BMW K100LT 1988 Matt Black Peugeot Electra Blue (ELX) Colour is now confirmed...
Yamaha Thundercat
Triumph Spitfire (not a bike but hell it's British chaps)
Fitting Bigger Tyres 169042 Fitting Bigger Tyres 169034
    

2Back to top Go down   Fitting Bigger Tyres Empty Re: Fitting Bigger Tyres Thu Feb 07, 2013 12:56 pm

charlie99

charlie99
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i have tried both the 130 and the 140 options twincarb ....same brand of tyre to the front and both were great i think im doing better with the 140 this time around, but still only about 7000 ks up yet

looks to me that i got a long way to go before it gets down to thinking about a change

btw i have the 110 on the front


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3Back to top Go down   Fitting Bigger Tyres Empty Re: Fitting Bigger Tyres Thu Feb 07, 2013 1:24 pm

japuentes

japuentes
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Hi there, I´ve been running 110/80 at front during the last 12000Km, I think you can not fit nothing wider there, at least on mine. At rear I had run 140/80 and now 150/70, the last being the limit for both wide clearances and rim size.
Best regards
JAP


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Fitting Bigger Tyres 2854237993 1988 K100RS SE/ABS
    

4Back to top Go down   Fitting Bigger Tyres Empty Re: Fitting Bigger Tyres Thu Feb 07, 2013 6:31 pm

Themason

Themason
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110/80-18 front and 140/80-17 rear works fine on the stock wheels. A shop once made an error and put a 120/7ZR18 front tire on my bike instead of the 110/80ZR-18 I thought I was buying and it fit fine. The difference in steering feel made me look at the tire sidewall and that is when I noticed the size was wrong, but it didn't rub anything. The shop was apologetic and replaced the tire with the size I wanted. If you are ever in a bind and need a tire right now, it is something to keep in mind.


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I live in a parallel universe but have a vacation home in reality :arrow:

1984 K-100RS Alaska Blue w/Parelever and 16V wheels.

1984 K-100RS Metallic Madison stock

1986 R-80G/S w/1000 cc engine

2007 Harley Davidson Street Rod Mirage Orange w/XR1200 wheels, Race Tech, True Track, Works Performance shocks

2007 Harley Davidson Street Rod Vivid Black stock

1993-ish K-100/1100RT/LT hemaphrodite frankenbike thingy to be painted satin black from a rattle can eventually
    

5Back to top Go down   Fitting Bigger Tyres Empty Re: Fitting Bigger Tyres Fri Feb 08, 2013 2:56 am

nino

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Hi, did anyone try wider tyres, 120 front, 160 rear? Is it possible on rear without modifications (spacers)?

    

6Back to top Go down   Fitting Bigger Tyres Empty Re: Fitting Bigger Tyres Fri Feb 08, 2013 4:54 pm

Themason

Themason
Platinum member
Platinum member
Nino, like I said above, a tire shop once put a 120/70ZR18 on the front and nothing rubbed. I made the shop replace it because I noticed the difference in steering feel, but it does fit.

You can put a 4.5X18 rear wheel and 160/60ZR18 tire on the back of an early K and it will fit except for the stock K100 muffler. If you use a muffler from a 16 valve bike or aftermarket exhaust the collector will clear the tire adequately where the stock collector will rub. You cannot put a 160 tire on the stock, narrow rear wheel.


__________________________________________________
I live in a parallel universe but have a vacation home in reality :arrow:

1984 K-100RS Alaska Blue w/Parelever and 16V wheels.

1984 K-100RS Metallic Madison stock

1986 R-80G/S w/1000 cc engine

2007 Harley Davidson Street Rod Mirage Orange w/XR1200 wheels, Race Tech, True Track, Works Performance shocks

2007 Harley Davidson Street Rod Vivid Black stock

1993-ish K-100/1100RT/LT hemaphrodite frankenbike thingy to be painted satin black from a rattle can eventually
    

7Back to top Go down   Fitting Bigger Tyres Empty Re: Fitting Bigger Tyres Fri Feb 08, 2013 5:14 pm

nino

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Tnx Themason, what about rear tyre of big enduros like GS 1200 150/70 17 on my old narrow rim?

    

8Back to top Go down   Fitting Bigger Tyres Empty Re: Fitting Bigger Tyres Fri Feb 08, 2013 7:05 pm

Two Wheels Better

Two Wheels Better
Moderator
Moderator
@nino wrote:Tnx Themason, what about rear tyre of big enduros like GS 1200 150/70 17 on my old narrow rim?

A five spoke wheel is 2.75x17 and therefore too small for a 150mm tyre. The proper width wheel would be 4" wide for that size. Maximum tyre width for your wheel is 140mm in an 80 series.


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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-Polizei  - Beemers owned still or sold.

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

9Back to top Go down   Fitting Bigger Tyres Empty Re: Fitting Bigger Tyres Mon Feb 11, 2013 1:55 pm

Themason

Themason
Platinum member
Platinum member
Dual sport tires on a K bike? That sound you just heard was my rectum slamming shut.


__________________________________________________
I live in a parallel universe but have a vacation home in reality :arrow:

1984 K-100RS Alaska Blue w/Parelever and 16V wheels.

1984 K-100RS Metallic Madison stock

1986 R-80G/S w/1000 cc engine

2007 Harley Davidson Street Rod Mirage Orange w/XR1200 wheels, Race Tech, True Track, Works Performance shocks

2007 Harley Davidson Street Rod Vivid Black stock

1993-ish K-100/1100RT/LT hemaphrodite frankenbike thingy to be painted satin black from a rattle can eventually
    

10Back to top Go down   Fitting Bigger Tyres Empty Re: Fitting Bigger Tyres Mon Feb 11, 2013 2:34 pm

twincarb

twincarb
Life time member
Life time member
Dual compound tyres would be the ideal!


__________________________________________________
BMW K100LT 1988 Matt Black Peugeot Electra Blue (ELX) Colour is now confirmed...
Yamaha Thundercat
Triumph Spitfire (not a bike but hell it's British chaps)
Fitting Bigger Tyres 169042 Fitting Bigger Tyres 169034
    

11Back to top Go down   Fitting Bigger Tyres Empty Re: Fitting Bigger Tyres Tue Feb 12, 2013 11:44 am

Themason

Themason
Platinum member
Platinum member
[quote="twincarb"]Dual compound tyres would be the ideal![/quote]

Lots of those from Dunlop and Avon.


__________________________________________________
I live in a parallel universe but have a vacation home in reality :arrow:

1984 K-100RS Alaska Blue w/Parelever and 16V wheels.

1984 K-100RS Metallic Madison stock

1986 R-80G/S w/1000 cc engine

2007 Harley Davidson Street Rod Mirage Orange w/XR1200 wheels, Race Tech, True Track, Works Performance shocks

2007 Harley Davidson Street Rod Vivid Black stock

1993-ish K-100/1100RT/LT hemaphrodite frankenbike thingy to be painted satin black from a rattle can eventually
    

12Back to top Go down   Fitting Bigger Tyres Empty Re: Fitting Bigger Tyres Tue Feb 12, 2013 5:39 pm

twincarb

twincarb
Life time member
Life time member
i guess in the 140 tyre range? my local place says they can't get any in the 130's...


__________________________________________________
BMW K100LT 1988 Matt Black Peugeot Electra Blue (ELX) Colour is now confirmed...
Yamaha Thundercat
Triumph Spitfire (not a bike but hell it's British chaps)
Fitting Bigger Tyres 169042 Fitting Bigger Tyres 169034
    

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