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-   -   CNC machined handlebars? (https://www.bikeforums.net/mountain-biking/449391-cnc-machined-handlebars.html)

WheresWaldo 08-07-08 12:01 PM

Funny, no mention of durability until post 23, you did say:
i have no valid reason for wanting this other than knowing that it is exactly what i want.
in your original post. You also said:
enough to have that pretty look....

You did take some offense when others suggested that you should not pick components solely for looks or style. Take their advise and look for functional, durable, safe components where they are necessary by design/function. You need to remember "Its a tool, not a jewel!"

fatigoworld 08-07-08 12:10 PM

if you read back through the posts youll see that a mentioned "durability" in relation to why i use MTB parts on my road bike. along with style because i like how MTB components look. i have MTB hubs, derailleur, BB, cassette and chain......i picked them all for their durability and looks. as far as durability for handlebars....i am on the road all day in the city, its not like im doing freeride. actually im barely out of the saddle most of the time. i do not need my bars to be tanks and i never insinuated that durability is an issue for the bars that i want.....i didnt mention that at all.....youre completely taking what i said out of context.

scrublover 08-07-08 02:05 PM

Either way, all the blathering about style or whatever aside, you're not going to find any CNC bars.

So unless you want to pay an obscene amount of money to have someone custom make you a set, pay up for the bars of your choice. Somebody alluded to some that were made for moto use; only CNC bars I've ever heard of.

This place: http://www.universalcycles.com/

has an ungodly selection of bars. Flat, riser, 25.4mm, 31.8mm. Knock yourself out.

womble 08-07-08 08:26 PM

Fatigo, most people can see very good reasons not to use CNC for this part, but if you're convinced it's for you, give these guys a call and they can probably sort you out for a price: http://www.purelycustom.com/

Hezz 08-08-08 01:37 PM


Originally Posted by dminor (Post 7225617)
If you were truly after "durability," I doubt that you would be trying so hard to find CNCd bars. Bars are forged or drawn for a reason - - part of which is to alter the metal at a molecular level by something called grain-aligning. Metal that has been formed in such ways is actually stronger than the parent-metal it originated from, because the process of manipulating it actually realigns the "grain" of the metal to impart more strength in the directions of most stress.

With a CNCd piece, you can only rely on the ambient strength of the parent-metal because all you are doing is shaving away portions of it to achieve the shape you want.

Well put. Because something is CNC machined does not make it the strongest or best manufacturing process for every kind of part. A forged or drawn tube will be a lot stronger than one machined out of standard material. It could be done but for what purpose? To make a bar that looks the same but costs 30-100 times the cost and is not as strong?

A bar stem or seat post can lend itself a little better to CNC machining but to get the stongest CNC parts you still have to forge the general shape as accurately as possible through a set of steps that align the metal crystals in the proper direction. Then remove as little material as possible to just get the tolerances you need.

If you want some strong handle bars. Get some Downhill mountain bike handlebars. They are pretty much designed for heavy use and are much stronger than standard bars but they also weigh more. But I can't see the point for urban commuting as a standard grade inexpensive Nashbar handlebar is pretty strong. It's just not as light as a good XC bar.

dminor 08-08-08 02:15 PM

Another thought: If you want something truly unique and MTB-ish, look for a set of Redline Forklifter bars. They're actually a BMX bar but came in a low-rise (at least for BMX) 3.5" version and are kinda cool looking. 4-pice bar with fat bulges in bead-blast tapering down to polished, normal diameter at the control ends. They look like a flatter version of these and came in some cool ano colors:

http://americancycle.com/merchant/13...ftersilver.jpg

fatigoworld 08-08-08 03:34 PM

i like those but not entirely what im after. after realizing that what i want doesnt exist i am looking into either a steel integrated bar/stem combo (aluminum if i could find it but dont think that exists either) or just sticking with what i have. thanks to those that helped!

fatigoworld 08-08-08 03:39 PM


Originally Posted by Hezz (Post 7233891)
Well put. Because something is CNC machined does not make it the strongest or best manufacturing process for every kind of part. A forged or drawn tube will be a lot stronger than one machined out of standard material. It could be done but for what purpose? To make a bar that looks the same but costs 30-100 times the cost and is not as strong?

A bar stem or seat post can lend itself a little better to CNC machining but to get the stongest CNC parts you still have to forge the general shape as accurately as possible through a set of steps that align the metal crystals in the proper direction. Then remove as little material as possible to just get the tolerances you need.

If you want some strong handle bars. Get some Downhill mountain bike handlebars. They are pretty much designed for heavy use and are much stronger than standard bars but they also weigh more. But I can't see the point for urban commuting as a standard grade inexpensive Nashbar handlebar is pretty strong. It's just not as light as a good XC bar.

also my derailleur, hubs, stem, and seatpost were all CNC machined and didnt cost 30-100 times the cost. thats such a bizarre number to come up with. anyway, they dont make the bars which is why i asked.

and please read through the thread, i never said anything about being into CNC parts for a gain in durability......i hope i dont have to explain that for a 3rd time....

this reminds me of another thread i am participating in where the OP is asking for a complete bike reccomendation for under 1000 bucks. ALMOST EVERY person is reccomending companies where frame only is 1500+. please read the threads...

scrublover 08-08-08 06:35 PM


Originally Posted by fatigoworld (Post 7234721)
also my derailleur, hubs, stem, and seatpost were all CNC machined and didnt cost 30-100 times the cost. thats such a bizarre number to come up with. anyway, they dont make the bars which is why i asked.

No it really isn't. Maybe 30-100x is a bit arbitrarily high, but it would still be way, way more expensive than alternatives out there already. The company would have to design and tool up to CNC the bar from scratch, to do a run of one bar. That's going to cost a lot of money. Unless you could convince them they would be able to sell enough to make a large run worthwhile in order to bring costs down.

Check into some custom frame companies. If you're sure of the rise/length/everything else about your bar and stem combo, you could have a custom ti or steel one made up that would likely still cost less than trying to have a custom CNC version made.

fatigoworld 08-08-08 09:59 PM


Originally Posted by scrublover (Post 7235596)
No it really isn't. Maybe 30-100x is a bit arbitrarily high, but it would still be way, way more expensive than alternatives out there already. The company would have to design and tool up to CNC the bar from scratch, to do a run of one bar. That's going to cost a lot of money. Unless you could convince them they would be able to sell enough to make a large run worthwhile in order to bring costs down.

Check into some custom frame companies. If you're sure of the rise/length/everything else about your bar and stem combo, you could have a custom ti or steel one made up that would likely still cost less than trying to have a custom CNC version made.

never mentioned anything about going custom , i just didnt know if they were manufactured or not. i dont believe most companies would even consider doing custom CNC machining, its not worth the effort for them to go through all of the trouble for one product...

i am going to look into those bar/stem combos, thanks....

scrublover 08-08-08 10:22 PM


Originally Posted by fatigoworld (Post 7236550)
never mentioned anything about going custom , i just didnt know if they were manufactured or not. i dont believe most companies would even consider doing custom CNC machining, its not worth the effort for them to go through all of the trouble for one product...

Which is what I tried to tell you several replies back...your only option was likely to be custom, and more money than you'd likely want to spend. I know you didn't ask about custom. But since it's the only way you're likely to ever get a CNC bar setup...Only way a company would is if they knew they'd be able to sell enough to make it worth their effort. Highly unlikely.

i am going to look into those bar/stem combos, thanks....

Obviously if you go that route, just be really damn sure what size/length/width/rise/etc. you want before having it made. :thumb:


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