The New And Improved Unofficial R65 Forum V2

Technical Discussion => BMW Technical Q&A, Primarily R65 => Topic started by: tvrla on August 23, 2013, 08:43:21 PM

Title: Tubeless LS
Post by: tvrla on August 23, 2013, 08:43:21 PM
Don't worry about warning of the dangers of tubeless on these wheels. I know for a fact they work very well that way!

But my question is what valve stems any of you have run in them. I've seen aluminum stems for sale - but want something stronger like brass or stainless. Definitely not the rubber ones!!!

And where can I get some?
Title: Re: Tubeless LS
Post by: Bob_Roller on August 23, 2013, 09:33:27 PM
Usually motorcycle dealers have them .

I got a set at a Guzzi dealer when I had new tires mounted on my '87 Guzzi .

Call around to see who has them, the metal ones are around $15 each .
Title: Re: Tubeless LS
Post by: montmil on August 24, 2013, 06:54:48 AM
I bought the "angled" tubeless tire stems from an on-line MC vendor. Been too long ago to remember where.

What I like about the angled stem is the ease of access for your tire gauge and air chuck. I've heard the BMW placed the snowflake's stem hole close to a spoke to increase rim integrity and strength... or just to annoy owners. Y'all choose... ;)


BTW, I've run tubeless on one of my R65s for years without any issue. The tires hold air pressure over several weeks better than any tubed-tire does.
Title: Re: Tubeless LS
Post by: tvrla on August 25, 2013, 01:54:47 PM
I've also run tubeless in snow flakes besides the LS wheels, which do have the tubeless hump to retain the bead missing from non tubeless rims.

There are arguments for and against, that pretty much balance each other out. One good one is that if the rim gets bent badly enough, a tube will still keep the tire on the rim and hard, where all air would be lost running tubeless. But frankly, that's not an argument for or against tubeless rims - more of an argument for tubes.

It's time for a new rear, and if I recall correctly, the last time I replaced it I left out the tube but didn't have a proper valve, so modified one from an old tube. It works, but besides being a little bit short, loses a few pounds over a month's time. I'd like to find the proper valve stem.
Title: Re: Tubeless LS
Post by: 2wheeltraveler on August 25, 2013, 08:48:57 PM
Hello, new to the forum.  

Having recently purchased my first LS and replaced the existing tubed tires with new tubed tires I wondered about going tubeless, these rims seem a natural.  They are thicker than normal though,  I don't think standard valve stems will work.  As is there is not a lot of stem showing on mine.  Thanks this forum I now know it is possible. Now begins my search for long valve stems.

Cheers
Title: Re: Tubeless LS
Post by: wilcom on August 25, 2013, 11:31:28 PM
The last time I re-tired I thought of going tubeless and would of, except it seems that the inside of the rim didn't look like it would seal a tubeless stem. I remember thinking that I would have to get a boss machined to do it properly.... anybody run into that or am I remembering a lil fuzzy ( it happens)