Singlespeed & Fixed Gear - Chopping Drop Bars

I was going to use the saerch function, but why do that when i can pester you guys.

What is the best method and tools to use when chopping your drop bars into bullhorns. the bars i'm chopping are just the aluminum stock ones off of my kilo tt. Thanks in advance for your help.

Go to the hardware store and get a pipe cutter. It will leave a nice smooth edge and is very precise. Just get the small one, like $8 or so.

Pipe cutter. I even see them at big boxes.

Problem with a pipe cutter is that it only works on a straight flat section of pipe, so I think you will either have to use a hacksaw or bandsaw.

Problem with a pipe cutter is that it only works on a straight flat section of pipe, so I think you will either have to use a hacksaw or bandsaw.

Not true, I've used them on all types of bars, the small ones dont have a large enough footprint to be effected by the bars curvature. USE A PIPE CUTTER!

Hacksaw= Uneven cut and time consuming + needs to be sanded or filed afterwards

Bandsaw= Hard to get the right angle on a curved bar, also they are expensive or hard to get ahold of if you dont already have one.

Not true, I've used them on all types of bars, the small ones dont have a large enough footprint to be effected by the bars curvature. USE A PIPE CUTTER!

Agreed

hacksaw.
the trick to getting a straight cut is to clamp the bars so they don't move and work slowly. You'll be surprised how fast a hacksaw with metal cutting blade will go through aluminum tubes.

Hacksaw method is not time consuming dude. Push harder.

I can get through a handlebar, both sides, with a pipe cutter in less than 1 minute, and there is no cleanup after. I dont need any clamp or any other tools except a sharpie to mark my cuts. There is no way you are chopping a bar with a hacksaw and cleaning the edges in less than 15 minutes.

BTW, you are not supposed to "push" any saw through any medium, what shop class did you attend.

Whatever dude. The point is that a hacksaw will work fine. Who gives a crap if it takes you 2 minutes or 20? If you already have a hacksaw on hand (which more people will than a pipe cutter), then the time difference is completely negated.

Anyway, everyone know they're called flop n chop because you're supposed to do it with an axe.

Ironpuppy13 here is the original post from OP



What is the best method and tools to use when chopping your drop bars into bullhorns. the bars i'm chopping are just the aluminum stock ones off of my kilo tt. Thanks in advance for your help.

He wanted to know the BEST METHOD. If he doesnt care how it looks afterwards then he can use a cutco knife from his kitchen drawer or a cutting torch or a file or any other tool that can cut its way through aluminum, but the BEST method is with a pipe cutter.

Anyway, everyone know they're called flop n chop because you're supposed to do it with an axe.


Finaly someones talking sense in here

The only pipe cutter I have looks like it's from the 1800s, weighs about 15 lbs, and leaves edges like a razor blade. Whatever man, I'm not here to argue.

If you do go with a pipe cutter I would advise making sure it is on there 90 degrees to the pipe, I do known a bmx kid at our little flop house a while back destroyed some new bars trying to cut them down with a pipe cutter.

my $.02.

Any bar with indent for cable routing under bar tape will require a saw.

A pipe cutter designed for copper water pipe may not cut deep enough for some aluminum bars.

A hacksaw cut can be sloppy or neat, depending on your patience.

A sawzall will cut a bar in seconds.

Filing the sharp ends is a must.

Measure 3 times, cut once.

@wounedknee
They make pipe cutters that are like 3 inches long and weigh less than 1/2 pound for small diameter copper pipes. If the blade is sharp it leaves a perfectly smooth edge.

@cZa
Yeah of course with any tool you need to use it correctly, you are just as likely(if not more likely) to ruin a pair of drops with a hacksaw if you are not carefull. Can a hacksaw be used, of course, its just not the best tool for the job.

Guys, a pipe cutter is a purpose built tool designed to CUT PIPES. Pipes are tubes made of metal(sometimes plastic). Handlebars are also tubes made of metal, in other words they are pipes that have been bent into shape for use on bikes. A Pipe cutter is the proper tool for the job, unless you are talking about CF handlebars.

OP- take whatever advice you like.

@ianjk

Your advise is pretty good. Better than most of the others here.

The reason i have suggested a pipe cutter is that I know for a fact that it is the perfect tool having cut upwards of 20 handlebars of every type both alloy AND steel with one over the years, I've cut through 1/4 inch walled alloy bars w/o problems. The benefit to the pipe cutter is that it cuts a perfect cross section to the bar there is very little "cleanup" needed afterwards, and it is very hard to screw it up.

Pipe cutter is the best method, and not IMO, it is just the truth.

Superiority of a pipecutter:
- Cuts in under 30 seconds per side
- Straight edge, no need to file
- Far less effort required compared to hacksaw
- No metal shavings everywhere, like a hacksaw would create

Some cons:
- You'll need a good pipe cutter to achieve the above mentioned results. (I spent $20 at home depot)
- The cheaper the pipe cutter, the longer it takes to cut
- More expensive than a hacksaw
- Cannot cut bars where there is cable routing curvature.

Proper cutting technique with a pipe cutter:
1. Begin by attaching the pipe cutter at the appropriate length on the handlebars.
2. Screw the blade into the bars, but not too deep or you'll break the blade or the whole pipe cutter.
3. Turn the entire pipe cutter around the handlebar until the bar gives little resistance and then screw in the blade soem more. Repeat the turning of the pipe cutter around the handlebar until it gives little resistance. Repeat until the bar is clean off.
4. Use the cut out piece as a template to mark the spot you want to cut off on the other side.

Okay, now that you've learned the techniques, go forth and show everyone your masterful handlebar cutting skillzzz!!!!

THANK YOU SHUBONKER! +9999999

Finally someone who knows what they are talking about has responded here.

I offer the simplest solution of all.

buy cheap bull horn bars from 8inch, rather than chop drop bars. :innocent:

@wounedknee


@cZa
Yeah of course with any tool you need to use it correctly, you are just as likely(if not more likely) to ruin a pair of drops with a hacksaw if you are not carefull. Can a hacksaw be used, of course, its just not the best tool for the job.

.

Right I have plenty of experience using pipe cutters at work I know how to use it, just knew this kid didn't do it right so just cautioning. I still can't figure how someone would mess it up. it's rather straight forward.

I cut mine with a hack saw.

Proper cutting technique with a hack saw
1. Use a guide. An automotive hose clamp will help you get a nice square cut.
2. Use a vice to hold the handlebar while you cut.
3. Deburr your cut. I used the wire brush in my bench grinder.

Is it better than a pipe cutter? I don't own a pipe cutter but I have a hack saw so that's what I used. For me it was cheaper and quicker because I didn't have to buy anything. If you can't cut an aluminum handlebar in less than 30 seconds per side with a hack saw you're doing something wrong. I took more time deciding where to cut than I did cutting. I'm thinking the end result would be equal.

I offer the simplest solution of all.

buy cheap bull horn bars from 8inch, rather than chop drop bars. :innocent:

I guess it would be even simpler to buy a whole new bike that comes with the kind of handlebars you want, but that defeats the whole idea of doing it yourself.

That kid must be kinda dodo if he has trouble chopping the STRAIGHT bar end off a bmx bar with a pipe cutter.

@ Retro Grouch
Not that your method doesnt work, there is simply more room for error with a hacksaw.

@ OP
bet you didnt think this simple question would spark such a debate!:P

I guess it would be even simpler to buy a whole new bike that comes with the kind of handlebars you want, but that defeats the whole idea of doing it yourself.

how do you plug the ends or use reverse levers if the bars were grooved for cables? doesn't the inner diameter and curvature change enough to cause problems with the plugs?

or am I missing something?

I will have to assume he was either a massive dodo or a little to altered in mind or a combo of both.
Not my friend but the roommates
but know I know there are people who can screw that up

how do you plug the ends or use reverse levers if the bars were grooved for cables? doesn't the inner diameter and curvature change enough to cause problems with the plugs?

or am I missing something?

My guess is its a ghetto flop-chop fixie bar for scenester points, no brakes or plugs needed.

-hey why not just chop it to an 8 inch flat bar to be extra cool.

Anyway, everyone know they're called flop n chop because you're supposed to do it with an axe.

This, I like.

I've cut bars with both a hack saw and a pipe cutter, but my preferred method is to just spend $20 on a new set of bars.

I will have to assume he was either a massive dodo or a little to altered in mind or a combo of both.
Not my friend but the roommates
but know I know there are people who can screw that up

Well if he was altered in mind then he was by default at least temporarily a dodo.

I've cut bars with both a hack saw and a pipe cutter, but my preferred method is to just spend $20 on a new set of bars.

just thought about this:

If this guy wants to chop drops then he is probably a poor college kid looking for an easy/cheap way to get the "look" He should just use a crappy hacksaw with an old blade, preferably in his dominant hand so he can drink a PBR out of his other hand at the same time.

I've cut bars with both a hack saw and a pipe cutter, but my preferred method is to just spend $20 on a new set of bars.

I mainly cut riser bars, but i have cut one or two drops to turn them into bullhorns.

just thought about this:

If this guy wants to chop drops then he is probably a poor college kid looking for an easy/cheap way to get the "look" He should just use a crappy hacksaw with an old blade, preferably in his dominant hand so he can drink a PBR out of his other hand at the same time.

Ah the good old days. ... But wait, I couldn't afford a hacksaw. I mean a six-pack was a real expense back then.

Not true, I've used them on all types of bars, the small ones dont have a large enough footprint to be effected by the bars curvature. USE A PIPE CUTTER!

Hacksaw= Uneven cut and time consuming + needs to be sanded or filed afterwards

Bandsaw= Hard to get the right angle on a curved bar, also they are expensive or hard to get ahold of if you dont already have one.

Jesus H Christ, if you can't get a smooth, even cut with a hacksaw blade you need to re-evaluate whether you should be riding a bike without the aid of training wheels.

Throw a wrap of tape around the bar to act as a guide. 5 minutes tops, another minute to run a file around the edige.

chopped horns < real horns

I can get through a handlebar, both sides, with a pipe cutter in less than 1 minute, and there is no cleanup after. I dont need any clamp or any other tools except a sharpie to mark my cuts. There is no way you are chopping a bar with a hacksaw and cleaning the edges in less than 15 minutes.

BTW, you are not supposed to "push" any saw through any medium, what shop class did you attend.


Japanese saws are pull saws, European based saws are almost always push saws.

Get a pipe cutter.

http://www.fanboy.com/archive-images/hello-kitty-cat-clothing-01.jpg

...

I can get through a handlebar, both sides, with a pipe cutter in less than 1 minute, and there is no cleanup after. I dont need any clamp or any other tools except a sharpie to mark my cuts. There is no way you are chopping a bar with a hacksaw and cleaning the edges in less than 15 minutes.

BTW, you are not supposed to "push" any saw through any medium, what shop class did you attend.

Such a short post. So many points to quibble with.

I offer the simplest solution of all.

buy cheap bull horn bars from 8inch, rather than chop drop bars. :innocent:

i prefer chop bars due to the short length of them. if i wanted to buy cheap bull horns, i would use a pair of bullhorns i have laying around.

@to whom it may concern

I ended up doing it with a hacksaw. took me like 30 minutes total including re-wrapping the bars. did a fine job.

cons: getting metal shavings in your mouth

just thought about this:

If this guy wants to chop drops then he is probably a poor college kid looking for an easy/cheap way to get the "look" He should just use a crappy hacksaw with an old blade, preferably in his dominant hand so he can drink a PBR out of his other hand at the same time.

actually that's exactly how i did it!

cons: getting metal shavings in your mouth

Dude, you're not supposed to clean the shavings out of the bar ends with your tongue!

i accidentally breathed them in.

and also not only did i drink a pbr while i did it, i did it in my white v neck/flannel combo right after grooming my mustache and cutting holes in my scenester girls jeans. i was just mostly bummed that i got my vegan toms dirty.

oh, yeah, where a protective mask when working with aluminum dust.
it's not healthy to inhale that.

I think your advice came just a bit late for this fellow. But then again, he was probably already half brain-dead from the pbr.

wooo pbr. and yes i definitely should have had a mask on, but i don't think i actually inhaled any, just got it in my mouth while breathing in.... you notice aluminum dust entering your mouth real quick. luckily that pbr was there to wash out my mouth. wooo pbr.