BMW K bikes (Bricks)


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1Back to top Go down   Tire valve stems Empty Tire valve stems Wed Oct 31, 2018 4:43 pm

BooG

BooG
Platinum member
Platinum member
Tubeless BT45 on front is letting air by through the stem on my K75.
Can I get a tire shop to do a stem replacement? 
DIY?

    

2Back to top Go down   Tire valve stems Empty Re: Tire valve stems Wed Oct 31, 2018 5:13 pm

nobbylon

nobbylon
Silver member
Silver member
get a new stem fitted or replace the stem inner yourself


__________________________________________________
R1100GS Feb 1995
K100RS July 1989
R90s June 1975
R75/6 Feb 1976
F650GD May 2001
    

3Back to top Go down   Tire valve stems Empty Re: Tire valve stems Wed Oct 31, 2018 5:21 pm

MartinW

MartinW
Life time member
Life time member
Yes, but if you are using right angle valve stems use the metal bolt in ones. The rubber pull through right angle ones can fail where they go into the rim. The reason that they split is that when you inflate or check the pressure you are pushing on them and it can eventually cause them to tear and leak. I've had a front one rapidly deflate at highway speed.

Regards Martin.


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1992 K75s
    

4Back to top Go down   Tire valve stems Empty Re: Tire valve stems Wed Oct 31, 2018 5:29 pm

duck

duck
Life time member
Life time member
If you're still running the original factory stems you are trusting your life and well-being to 30 year old rubber.

I run metal valve stems on all of my bikes. Best done when installing new tires.


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
98 Taxi Cab K1200RS
14 K1600GT
http://www.ClassicKBikes.com
    

5Back to top Go down   Tire valve stems Empty Re: Tire valve stems Wed Oct 31, 2018 8:09 pm

mike d

avatar
Life time member
Life time member
Tubeless BT45 on front is letting air by through the stem on my K75.

I had this on the front BT45 tyre of my K1100 a month or so ago. Took it to a local bike shop that has wheel changing facilities and they chopped off the old rubber valve, removed the tyre, fitted a new valve.

Total charge - absolutely free. his comment was it's only a valve. I have bought and had tyres fitted there before, for both my K1100 and R1150 RT (to loose wheels). Very clean workshop and careful working procedure.

Obviously going back when I need new tyres.

Mike

    

6Back to top Go down   Tire valve stems Empty Re: Tire valve stems Wed Oct 31, 2018 8:47 pm

Two Wheels Better

Two Wheels Better
Moderator
Moderator
I keep a small supply of 15mm base BMW rubber stems and replace them every other tyre change, and have the lever tool that pulls the stem through the rim. It's a good idea to have your own simple core removal tool in your kit as well so you can replace the sometimes dodgy odd one yourself.

Metal stems are da biz too, but since I keep 'em fresh....


__________________________________________________
"Politics is the entertainment division of the military industrial complex."
- Frank Zappa
1977 R75/7-100, '93 K11/K12 Big Block, '93 K1100RS, '95 R100 Mystic, '96 K1100RS, 2 x '98 K1200RS, '06 K1200R & '09 K1300GT
    

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