Titanium - does it improve or worsen performance - does it improve comfort?
12-14-11, 09:27 AM
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the titanium beam is indeed springy, but so would be a steel tube .... carbon contraption or else....
its in the design parameters to be springy ....
that however doesnt mean that a titanium triangle is springy ...more than a steel or alloy triangle.... its all in the design of the tubes....
It does mean however that if you design a rear end with bend stays and maybe a lot of flex in one or more directions than titanium is a good material to start out with as it has great memory ( to spring back ) and low breakage ( compare to alluminum ....in that aplication)
thor
its in the design parameters to be springy ....
that however doesnt mean that a titanium triangle is springy ...more than a steel or alloy triangle.... its all in the design of the tubes....
It does mean however that if you design a rear end with bend stays and maybe a lot of flex in one or more directions than titanium is a good material to start out with as it has great memory ( to spring back ) and low breakage ( compare to alluminum ....in that aplication)
thor
12-14-11, 09:28 PM
#27
my nice bike is at home
thor
"who is lusting for a 20 inch titanium folding/take apart bike"[/QUOTE]
Who MAKES a 20 inch Titanium folding bike? Besides that Brompton rear triangle...
"who is lusting for a 20 inch titanium folding/take apart bike"[/QUOTE]
Who MAKES a 20 inch Titanium folding bike? Besides that Brompton rear triangle...
12-14-11, 09:51 PM
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Who MAKES a 20 inch Titanium folding bike? Besides that Brompton rear triangle...[/QUOTE]
I think brompton now offers titanium for the seat post, rear triangle, fork and frame.
I think brompton now offers titanium for the seat post, rear triangle, fork and frame.
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Food for thought: if you aren't dead by 2050, you and your entire family will be within a few years from starvation. Now that is a cruel gift to leave for your offspring. ;)
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Food for thought: if you aren't dead by 2050, you and your entire family will be within a few years from starvation. Now that is a cruel gift to leave for your offspring. ;)
https://sanfrancisco.ibtimes.com/arti...ger-photos.htm
12-14-11, 10:07 PM
#29
Banned
some one mentioned a Ti Minibike, but It didn't fold..
perhaps an S&S retrofit?
Tom Richey has a Breakaway coupled Ti/Carbon race travel 700c bike.
I believe Brompton has made a Russian sub contract for the back portion,
a China firm makes their forks.
perhaps an S&S retrofit?
Tom Richey has a Breakaway coupled Ti/Carbon race travel 700c bike.
I believe Brompton has made a Russian sub contract for the back portion,
a China firm makes their forks.
Last edited by fietsbob; 12-14-11 at 10:10 PM.
12-15-11, 08:34 AM
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12-15-11, 08:52 AM
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there was an english? marketed ( russian made ??) Titanium bike with S@S couplers a while back.)( 2 years)??? They did however never answered to emails after the Interbike show in Vegas ...At the show they were somehow indifferent about things to say the least, might just be me or bad timiming when I visited them, but I dont loose the feeling it was a couple folks who enjoyed a biz trip to vegas more than the bike they were supposed to sell .... happens
12-15-11, 09:17 AM
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there was an english? marketed ( russian made ??) Titanium bike with S@S couplers a while back.)( 2 years)??? They did however never answered to emails after the Interbike show in Vegas ...At the show they were somehow indifferent about things to say the least, might just be me or bad timiming when I visited them, but I dont loose the feeling it was a couple folks who enjoyed a biz trip to vegas more than the bike they were supposed to sell .... happens
https://www.qoroz.co.uk/bikes/
They have a travelling bike listed, but don't seem to have the 20" wheeler that i saw at the London Cycle show.
12-15-11, 12:21 PM
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That would be:-
https://www.qoroz.co.uk/bikes/
They have a travelling bike listed, but don't seem to have the 20" wheeler that i saw at the London Cycle show.
https://www.qoroz.co.uk/bikes/
They have a travelling bike listed, but don't seem to have the 20" wheeler that i saw at the London Cycle show.
thor
p.s. If I recall there were some finishing touches missing on the 20 inch bike
12-15-11, 12:36 PM
#34
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At the show they were somehow indifferent about things to say the least,
They had not gotten the customer service rapport thing much, yet, in 1991..
12-19-11, 04:39 PM
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FYI was looking through my past postings, one thing I complained about was a Brompton when loaded with camping gear, a combination of top-heavy on the bike due to the camping gear, and the springiness below from the Ti meant it was not a good feeling riding a loaded Ti fork/triangle, and I wrote at the time that it would be better to have on a steel frame. Funny how I forget stuff.... In my last touring trip I used a steel frame and didn't experience the top-heavy skittish steering issue.
So I've got all I need to know, a touring type context really needs steel frame, a light commuting type context benefits from the Ti for carrying ease, this nothing really do with with the weight difference but the springiness difference.
That then finalizes all I needed to figure out.
So I've got all I need to know, a touring type context really needs steel frame, a light commuting type context benefits from the Ti for carrying ease, this nothing really do with with the weight difference but the springiness difference.
That then finalizes all I needed to figure out.
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