The reason for this is Speedplay's attitude of a schoolyard bully who threatens anyone who does anything which doesn't meet their approval.
They go out of their way to harass anyone who sells any product that remotely touches their own, regardless of whether or not they have any legal basis in doing so or not. Someone selling a rebuild kit on Ebay? Speedplay's lawyers send them a threatening letter. Post rebuild instruction on a discussion forum? Speedplay's lawyers send them a threatening letter. See a pattern here?
Take this as an example:
Apparently, someone in the top management of Speedplay has a very small penis (probably impotent as well), and takes out his frustrations on their loyal customer base. Or what would have been their loyal customer base, had Speedplay not tried to stick their tiny, flaccid corporate penis into other people's business.
Now, I can understand a company choosing to protect its brand name, and asking vendors selling after-market products to not use their name in the product. I can also understand a company not providing warranty support for any after-market modifications made to their product - after all, they cannot control what has been done.
However, for a company to use its lawyers to browbeat their customers into not discussing any modification of their product is the lowest form of bullying I can think of. This is fundamentally equivalent to a car manufacturer threatening to sue you for sharing instructions on how to change the oil yourself, or a wheel manufacturer threatening to sue you for changing out a broken spoke by yourself. There is no legal basis for this, just a bunch of conceited, self-impressed assholes throwing their weight around.
So for starters, I am going to recommend BeBop pedals as an alternative to Speedplay.
Second, just for the sake of sharing knowledge, I would like to post up some notes I came across on the Internet on how to service Speedplay pedals. I haven't tried it, and so I cannot state whether or not this would work, but am putting it up here for discussion - if anyone has any experience with this re-build, do post your experience here.
Obviously, if you try doing what is written below, your pedals will snap, you will hurt yourself, possibly fatally, and zombies will eat your brain. So dont try this at home. This is just for the sake of academic discussion, ok?
Anyway, here goes:
Now, as it turns out, I have a very good friend who is a cyclist and a partner at a law firm where Speedplay's lawyers would likely give their left nut to be working, but where they have no odds of even having their resumes accepted for review. He has agreed to come up with an appropriate response and escalation to any bullying tactics Speedplay might try - pro bono too (he didn't like their attitude either). I am willing to bet that he and his firm can eat up Speedplay's company lawyers - and Speedplay itself - for breakfast. So, with that in mind and since I don't particularly like Speedplay's bullying tactics, I am going to call them out on this one.
Bring it on, bitches.