John_Roger

Has anybody cut these ugly bastards off before? They don't seem to be brazed on, i just hope i dont have to try and patch the holes when i'm done.


80's Schwinn Prelude

JohnDThompson 

Don't do it. You will gain nothing by removing them and risk damaging the most heavily loaded tube on the frame.

FKMTB07

Just put a button-head bolt (the ones that come with downtube-mounted cable guides are nice) or some heat-shrink, or something on there to avoid damaging the braze-on or yourself when you crash, and call it a day.

John_Roger

So ugly though! Is there a hole under them? If there isn't, i'm grinding them off.

ianjk

What kind of frame?

ichitz

DT shifters are hot, what r u talking about?

John_Roger

No gears on the bike, its a 80's Schwinn Prelude.

monsterkidz

Even if you remove the shift bosses from the frame it will still be a conversion. Honestly, it's not worth the trouble or risk of destroying the frame. Just leave them on there and deal with it.

milkcratebasket

+1

ADSR

You can get cable guides that fit right on. Your frame will still have something on the tube, but at least it will be a nice, smooth bump the is chrome in color. Sure beats stressing your frame like that

https://harriscyclery.net/product/shi...osses-1737.htm

Just take the barrel adjusters off. Voilà!

fuzz2050

any time you take a grinding wheel to a frame, your doing something wrong. Mount a bell to one of them.

leed

Get a set of these buggers:

https://aebike.com/page.cfm?action=de...=30&SKU=FS0900

LoRoK

Put some gears there, then man up and get a track bike.

JohnDThompson 

If you don't like how they look, save your pennies for a real fixed gear bike. But don't castrate the frame you have.

adamzee

I've never seen those before, nice!

Six jours

I'll answer the question, because an 80's Schwinn Prelude is a spectacularly unimportant bike and destroying one isn't going to make a difference in the universe.

There is no hole under the bosses. Just tubing.

They are brazed on, with brass. They can be unbrazed, but that will wreck the paint for several inches, and it takes more heat to unbraze them than it did to braze them in the first place. This is not good for the tubing.

They can be ground off. A carefully wielded angle grinder or Dremel tool can be used to remove the bulk of it, but you should not kid yourself that you have the skill to do the whole job with one. Nobody has the skill to do that: the underlying tubing is no more than one mm thick, and removing any of it will substantially weaken it. There was another member of this subforum who proudly showed us pics of his angle grinding job and it looked as though the bike had been attacked by a rabid beaver. That's a frame that is going to fail sooner or later. So use the power tools for most of the work and finish the job with a hand file. I'd use an 8" double cut.

John_Roger

I have no interest in a "real" fixed gear bike.

carbondated

Use the shifter bosses to mount small animal skulls from the roadkill you find out riding.

People are finding fashionable uses for roadkill all the time these days, it is an actual trend.

tdot-miele

man you can barely notice them half the time anyways

TofuPowered

pretty much sums it up, doesn't it? so you're doing this for fashion and you're going to make a perfectly good bike doomed to rot once you've realized that this "fad" is done? awesome. thanx.

Deshi

+1

Brian

If he's asking, he probably doesn't have the skills necessary to remove them without creating some stress risers, or a weak spot.

Dental insurance.

Six jours

"...perfectly good bike..."

Well...

carleton

I'll bet a dollar to a dime that he does it anyway.

kringle

80's Schwinn Preludes can be decent rides.