Broke spoke on mavic kyserium sl can't ride bike, miles from home

Either trust your local shop, or call one of the e-bay or Amazon vendors, such as Nigara, Bike Wagon.

a common problem is to have a spoke nipple or some carbon flash that is loose inside the rim.

Take off the tire and rim strip,
and hold the wheel with the valve hole at the bottom.
shake and rattle the piece, until it falls out of the valve hole.

Another option is to squirt some spray foam into the rim,
and shake the wheel until the piece sticks in the foam.

Use very little foam,
as the more you use, the more off balance the wheel can become
and you can fill spoke or valve holes, making service difficult.

I believe you'll have to undo the spoke at the rim end (Mavic uses a torx style head on the nipple). With the hub end of the spoke, looks like a ball but with two flat sides. When the spoke is tensioned it seats the ball end into the straight pull flange. This style is used in pretty much all of Mavic's high end wheel sets (Road or Mountain). Some have a plastic clip-on type cover. This can be removed with a flat head screwdriver. Good Luck!

They are for sale on e-bay .

It's hard to believe a shop can't deal with what sounds like loosening spokes. OTOH, we Clydesdales are tougher on wheels than the lil guys. I used to break a lot of spokes under high torque demands, especially on several sets of Spinergy Spox wheels, then I bought a Park spoke tension gauge and meticulously trued and tensioned all the wheels on all my bikes. Haven't had a spoke issue since then.

Or you could get an old set of Spinergy Rev-X like I did a long time ago before I figured out the tension thing. If you can break or bend them you are not human.

http://www.tech-mavic.com/tech-mavic/uk/sources/Produits/Piste/Ellipse/Spoke_Replacement.pdf

Googled it in 2 seconds

Too take the Freehub off of the hub body is fairly simple on Mavic. You will need either Mavic Mineral oil, a lightweight mineral oil or other very light lubricant when you are done with cleaning. This can be tricky to find and you may need to enlist the help of your local bike shop to get some or the equivelant.

Here is the direct link to the Mavic service instructions with nice clear pictures and "how-to's".

A new spoke should be around $1.00 +/-. It's better to replace it, as it sounds like the spoke nipple might be stripped, or at least compromised. It's an easy job, just follow the interweaving pattern of the other spokes. If you take the old one to the bike store, they can match it up exactly.

Floss the spoke crossings at each hub interface with clean rag...DONE!!!