now, why couldn't they have put a barrel adjuster on the eco? seems a trivial thing and could still remain more "eco" than the ti version
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I'll let the repressed retired manufacturing engineer in me speak for a second - Note that the stop on the ECO is formed from the same piece of metal that the parallelogram arm is made from. Other than the original expense in fabricating the forming dies, no added cost. The Ti version, on the other hand, has three additional components, a riveting operation and (likely) manual assembly of the spring and barrel adjustor. Definite increase in production cost.
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perhaps. otoh, instead of bending the metal over to form the cable stops, leave it flat and drill a hole using the same barrel adjuster as the ti. moreover, use the same basic design/die for the eco as the ti, just make it all steel as they did. one die...two different materials. save even more over having two dies (i'm no engineer, but i'll mildly play the devil's advocate, here ;) )
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That component part in steel cost pennies, even with the cost of tooling amortized. The cost of assembling the barrel adjustor, if it had been in the factory where I worked, would have been more than a dollar. Not to mention the cost of the three additional parts.
I don't have enough experience with titanium to know whether the same dies could be used - off hand, I'd guess no, since the design of the die includes compensation for how much a particular metal "springs back" after forming. |
my point is really, daka, it would still be more economical than the ti. and, ultimately, i'm just finding something pointless to gripe about...lol. i do have the idea, however, to see if i can add a barrel adjuster to mine as the suntour downtube cable stop doesn't have them. may not be doable, but i'm gonna see...dang it! :)
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Point taken. The real cost difference in manufacturing is likely the more expensive raw material, the finishing and the absence of economies of scale. As to the adjustor, before indexing many derailleurs didn't have them. It only became important when fine-tuning the lateral position of the derailleur to correspond to an indexed position at the shifter was required. BITD, you'd only use the barrel adjustor, if you had one, to take up slack in the cable.
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Originally Posted by daka
(Post 22032213)
Point taken. The real cost difference in manufacturing is likely the more expensive raw material, the finishing and the absence of economies of scale. As to the adjustor, before indexing many derailleurs didn't have them. It only became important when fine-tuning the lateral position of the derailleur to correspond to an indexed position at the shifter was required. BITD, you'd only use the barrel adjustor, if you had one, to take up slack in the cable.
none of my cyclone derailleurs have one, but ironically the "lesser" BL does. i like having one back there for more convenient installation and adjusting as cables stretch...ie. not having to fuss so much with the pinch bolt |
Originally Posted by thook
(Post 22032188)
my point is really, daka, it would still be more economical than the ti. and, ultimately, i'm just finding something pointless to gripe about...lol. i do have the idea, however, to see if i can add a barrel adjuster to mine as the suntour downtube cable stop doesn't have them. may not be doable, but i'm gonna see...dang it! :)
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Originally Posted by Cycle Tourist
(Post 22033097)
I Think there was probably no incentive to add an adjustable barrel to bikes being used with friction derailleurs. It looks to me like a properly sized barrel adjuster screw and nut would fit and give you the adjustment your looking for. It's a little unglamorous so I'd use the adjustable down tube hardware. They will screw into frame lugs or, if none are available, into an old clamp on style derailleur minus the levers. Understand that the screws that come with the hardware may or may not work on the old clamp-on. Sometimes the screws that came with the levers are perfect and add a touch of class to the set up.
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Originally Posted by thook
(Post 22033121)
what i have is a suntour clamp on downtube cable stop. i don't think barrel adjusters will work on it. i could give it a go if there's enough clearance from the frame to spin the barrels. otherwise, i have a late 70's 600 rear derailleur with an adjuster that looks like it might work on the duopar. i'm juggling honda work, little home repairs, and another bike build. but, i should squeeze in 15 min's tomorrow to look at the logistics for the adjusters
It looks like this: https://cimg4.ibsrv.net/gimg/bikefor...7f18c0e63f.jpg |
Originally Posted by bicyclegirl1961
(Post 22030656)
I didn't like that my 1986 Royce Union 12 speed was all black when I bought it new so I went to a bike shop and bought Peugeot decals.
https://f.eu1.jwwb.nl/public/x/f/i/t...2847072640.jpg |
Originally Posted by Cycle Tourist
(Post 22035388)
I was referring to adding a new adjustable mech. to an old set of down tube clamp on levers. I'm a fan of barend shifters for touring bikes. Sometimes I forget that not everyone has a box of old shift levers.🤗
It looks like this: https://cimg4.ibsrv.net/gimg/bikefor...7f18c0e63f.jpg |
84 Motobecane CT2 650b with some vintage/modern components upgrades.
not the lightest frame I have but un breakable and reliable! https://cimg7.ibsrv.net/gimg/bikefor...daf143cf7.jpeg |
Originally Posted by GeoffroyFromLux
(Post 22035773)
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Thx :)
Yes it is indexed; 7 speed |
Originally Posted by Cycle Tourist
(Post 22035388)
I was referring to adding a new adjustable mech. to an old set of down tube clamp on levers. I'm a fan of barend shifters for touring bikes. Sometimes I forget that not everyone has a box of old shift levers.🤗
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Run, don't walk...https://www.facebook.com/marketplace...4625428360275/
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1985 Trek 620 Cirrus
https://cimg2.ibsrv.net/gimg/bikefor...eab7b419f.jpeg
Just acquired this fine steed. |
By automotive standards I think my '97 T900 is technically a year away from being 'classic', but close.....
https://cimg8.ibsrv.net/gimg/bikefor...83405426e4.jpg 1997 Cannondale T900 |
Originally Posted by ehcoplex
(Post 22245003)
By automotive standards I think my '97 T900 is technically a year away from being 'classic', but close.....
1997 Cannondale T900 Looks great! Love to see more pix of it! |
Originally Posted by The Golden Boy
(Post 22246376)
Level top tube, silver components... "classic."
Looks great! Love to see more pix of it! |
I got this 1973 Fuji Special Road racer at a online auction cheap last week.
https://cimg9.ibsrv.net/gimg/bikefor...6e9fe1925.jpeg |
https://cimg7.ibsrv.net/gimg/bikefor...2ce66de6d.jpeg
Frame bag upgrade for this summer on my Fuji Touring Series V and the Mountech FD (seized from road salt) replaced with a Cyclone |
ZudeJammer love it!! :) and, where'd you get that frame bag?? can't quite make out the brand tag on there
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Originally Posted by thook
(Post 22246731)
ZudeJammer love it!! :) and, where'd you get that frame bag?? can't quite make out the brand tag on there
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