Originally Posted by
fietsbob
If you cannot find an opening by peeling the rubber grip back, toss the whole thing.
they were made only for OEM installation and never to be serviced, but cheaper..
if you want it to click the brand of the shifter and the RD have to match
and have the same "speed" number.
There are no rubber bits.. it's all hard plastic. I was afraid it wasn't going to be serviceable after spending 1/2 an hour trying to figure out how to open it. Then I walked over to my Trek and peeled back the rubber bit I was looking for.
The Wal-Mart bike (a free parts bike) I have appears to be the same thing, but I can probably use the cables that are already in the shifter. They're both 6 speed rear freewheels, but one is a kids suspension bike with 20" tires, and the other is an adult mountain bike with 26" tires. Maybe the derailleur will swap out..
I guess it doesn't hurt to try swapping things, otherwise I'm out the $20 I spent for the bike. I guess it didn't occur to me that it wouldn't be replaceable. I suppose some thumb shifters wouldn't hurt as a last resort.