How to make your own DIY tubeless tire valve stems!

With tubeless wheels and tires becoming increasingly popular in mountain biking for the added benefits of running lower air pressures, puncture resistance and a more supple ride, the need to know how to properly set-up and maintain your tubeless system becomes  essential for the do-it-yourself bike mechanic.

One important component of the tubeless tire system is the valve stems, which are often sold for overpriced prices for what are essentially very simple components! This guide shows you how to very easily make your own tubeless valve stems using things that you will probably already have: inner tubes and a cutting tool!

Things you will need:


1- Inner tube (Presta or schrader valve depends on your preference and your rim valve drilling. This guide shows a presta valve). Any old/new or punctured tube will work as long as the valve area is intact. I find it better to use a tube that has a longer presta valve stem (like the the one in this guide, which is around 42mm long) for a better valve-pump interface with deep rims and with a removable core for ease of adding tire sealant, but any functioning valve should work.

2- Sharp utility or exacto knife.

Thats all you need!

How to make the valve stem:

Step 1: Lay your tube flat with the valve stem area up on a workbench or a surface suitable for safely cutting on. There is a small circle of thicker rubber around the valve.

Step 2: Using your utility knife, cut the tube on either side of the tube as shown.

Step 3: You will now be left with the valve stem section of tube as shown in the picture. Cut the section open from right below the valve stem to flatten out the rubber as shown in the next step.

Step 4: Place the flattened out section of tube on the workbench as shown, and proceed to Step 5.

Step 5: Trim the rest of the rubber from around the valve stem area while being careful not to damage the rubber right underneath the valve. You want it thin enough so as not to block the rim bead hook when mounting your tires.

Step 5: And here is the finished product!

MTB Egypt’s rider of the month: August 2013

Name: Eissa Allam

Age: 31

Where are you from?: Maadi, Cairo , Egypt

What do you do for a living?
I work in the Oil & Gas field as an Instrumentation & control Engineer

When and why did you start cycling? I started cycling 2011 , Actually my childhood was almost spent on bikes, and it popped into my mind that I should be back especially when I joined MTBEgypt group on Facebook on 2010 , it was part of the motivation that I could be back on the bike.

Do you ride mountain bikes exclusively? I started riding both road and off-road, but I didn’t like road biking unless I use it for transportation inside maadi

Tell us about your bike(s)!: The first bike was Orbea Dakar 2011, I ride this bike for 8 months , then I switched to Specialized FSR XC 2009 that I bought from a colleage at work. I’ve made some good upgrades on the bike , I’ve upgraded the fork to Rockshox Reba RL 120mm travel and switched from V brakes to Shimano XT disk brakes which both made a huge difference in riding in the wadi.

Favorite ride(s): Short technical ones in general are my favorite in addition to Wadi Hof ride, which I really like.

Do you practice other sports?: Yeah , Jogging , Diving , used to play lots of squash but can’t find anyone anymore to join me 🙂

Tell us about your cycling-related injuries/accidents:
The most famous one was when I fell off that narrow steep descent before the balcony, I couldn’t raise my arm more than half the way for about 2 months , I had pain in my ribs and clavicle for 6 months.
I also crashed once after the final descent which made lots of bruises in my body till the moment but I was able to ride normally right after.

Anything else you want to tell us about yourself?
I love mountain biking and I love MTB Egypt riders.