inutile

While replacing my brake levers I had to remove my bar end shifters to get the clamps (for the brake levers) off.

For no other reason than my stupidity, I think I tightened the mounting screw (that resides inside the handle bars, which the shift lever screws into) way too tight. It's in the handle bar now. Deep.

Park Tool set me straight, i.e. turning counter-clockwise is tightening. However I can turn all day long and it won't come back out.

Am I missing something, or is the bolt just stripped? In my screwing, did I really screw myself?

If it IS stripped, does shimano just sell the mounting components, or am I buying whole new levers?

Torchy McFlux

I've seen cross-threaded bar-end shifters, but never heard of stripped ones. The threads are pretty large and have lots of surface area, so it would be very difficult to do.
I've never seen small parts for bar-end shifters offered from Shimano.

marcusbandito

If the threads on the compression wedge dis-engaged from the shifter body's screw it can be hard to get get the dang thing out. I usually have to fish it out of the bar with the end of a spoke or other grabby tool.

HillRider

Are you using the correct size allen wrench? If the bolt requires a 6 mm wrench and you are using a 5 mm, you will indeed turn all day long to no effect.

j. hughes

Maybe the OP rounded it out. I did that on one and still can't get the shifter out.

rmfnla

I've seen several that were rounded out.

Sometimes you can remove them by putting a small screwdiver through the pivot bolt holes and turning the shifter body counter-clockwise.

If this fails, you can remove the allen bolt by driving in a flat screwdriver whose blade is slightly wider than the hole. Pound it in with a hammer and make sure to back it out in the correct direction. This is a distructive technique and I, too, have never seen replacement parts, but it will get them out.

inutile

Yeah, it's probably rounded out. I can turn all day in EITHER direction and it won't budge.

rmfnla: what do you mean by "pivot bolt holes"? and wouldn't turning it counter-clockwise tighten it?

rmfnla

I mean the holes in the aluminum shift body where the shift lever pivot bolt goes through.

You take the shift lever out by removing the cross bolt; you put the screwdriver through the holes that the bolt goes through.

Counter-clockwise tightens the bolt; you are turning the body so it goes in the opposite direction.

inutile

Yeah that method will not work.

Taking it to the bike shop this morning to either have it impacted out (with a slim, slim, slim chance of saving it), or drilling it out. Most likely getting new shift levers.

Maybe I'll go back to downtube....

rmfnla

Bummer.

The reverse-thread design means you can't use a normal screw extractor.

Downtube is looking better all the time...

inutile

Ended up buying another shifter set. Pounded down the mount further into the handlebar so when I inserted the new one they wouldn't touch/interact/****meover. Pretty penny, but lesson learned, and at least I have spare parts for everything else.

Mounts are on nice and tight. I took off the handlebars and just brought them to the shop, so when I get back home reassembling continues. Ehhh... =/

j. hughes

Thought I'd give barcon with the rounded out allen bolt another try. I just tried the screwdriver through the pivot bolt holes method and the metal around said pivot bolt holes snapped and now the entire body just spins freely, not just the rounded out part. So, now I just need to get this damn thing out and save the handlebars as I will obviously need another shifter anyways.

ginsoakedboy

I've heard - although no personal experience - that these generic mounts that Rivendell sells will work with the Shimano barcons.

https://www.rivbike.com/products/list...product=17-068

inutile

yeah i saw that AFTER i purchased a replacement shifter set. oh well.