Fastback Seat Stays
#51
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Anybody got a Ron Cooper? Back in the 80's, that was the prototypical fastback stay.
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If someone tells you that you have enough bicycles and you don't need any more, stop talking to them. You don't need that kind of negativity in your life.
If someone tells you that you have enough bicycles and you don't need any more, stop talking to them. You don't need that kind of negativity in your life.
#52
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Raleigh Pro's had them in about 1970,... there were many others, too. Post #4 in this thread shows that design.
Post #18 shows a version from 1917.
Last edited by Bad Lag; 09-12-15 at 10:07 PM.
#53
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Yeah, but in the 80's, Ron Cooper was the example to be followed.
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If someone tells you that you have enough bicycles and you don't need any more, stop talking to them. You don't need that kind of negativity in your life.
If someone tells you that you have enough bicycles and you don't need any more, stop talking to them. You don't need that kind of negativity in your life.
Likes For poprad:
#57
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#58
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Thanks GoMango, it is the finest steed in the stable. I've upgraded recently to the new TRP HYRD cable actuated hydraulic disc brakes, now the brakes match the rest in quality and function. These units are a really cool upgrade, and a mechanic's best friend. No bleeding lines!
[IMG]
Vanilla with HYRD brakes by Mark, on Flickr[/IMG]
[IMG]
Vanilla with HYRD brakes by Mark, on Flickr[/IMG]
[IMG]
Vanilla with HYRD brakes by Mark, on Flickr[/IMG]
[IMG]

[IMG]

[IMG]

Last edited by poprad; 09-13-15 at 06:46 AM.
#59
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#60
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Really a gorgeous bike.
I'll have to keep those brakes in mind when I am doing builds this winter.
Thanks for sharing.
I'll have to keep those brakes in mind when I am doing builds this winter.
Thanks for sharing.

Thanks GoMango, it is the finest steed in the stable. I've upgraded recently to the new TRP HYRD cable actuated hydraulic disc brakes, now the brakes match the rest in quality and function. These units are a really cool upgrade, and a mechanic's best friend. No bleeding lines!
[IMG]
Vanilla with HYRD brakes by Mark, on Flickr[/IMG]
[IMG]
Vanilla with HYRD brakes by Mark, on Flickr[/IMG]
[IMG]
Vanilla with HYRD brakes by Mark, on Flickr[/IMG]
[IMG]

[IMG]

[IMG]

#62
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I love 'em. The biggest diff btwn disc and caliper type brakes is really the modulation. The "gray area" between barely draggging and full-on is much wider with discs, which gives you a lot more confidence on long and twisting descents. The other obvious bennies of not cleaning the brake track on the rim and no wet fade are nice too, but really side issues in my opinion. The HYRD ones are the best of both worlds to me, super easy setup, mechanically very cool and interesting, and stop like a brick hitting the sidewalk from a 10 story drop.
** edit; sorry, just realized I kinda hijacked this thread. My bad.
More seat clusters goodness:
[IMG]
Future Chesini 020 by Mark, on Flickr[/IMG]
** edit; sorry, just realized I kinda hijacked this thread. My bad.
More seat clusters goodness:
[IMG]

#63
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I've used them quite a bit.
For general use around town, it's still hard to beat a Chorus or Record caliper with Kool Stops.
In the wet and gravel, I prefer discs. In fact, we ride in the Bavarian Alps when we visit family and I could really see discs being useful there as well. Long descents get pads overheated. They fade like crazy after a few miles. I could see the discs being helpful.
Up at our cabin, I ride my Fargo constantly and recently upgraded to Spyre discs from BB5s. What a nice surprise.
On my Niner, I have hydraulic 785s and they are outstanding as well.
For general use around town, it's still hard to beat a Chorus or Record caliper with Kool Stops.
In the wet and gravel, I prefer discs. In fact, we ride in the Bavarian Alps when we visit family and I could really see discs being useful there as well. Long descents get pads overheated. They fade like crazy after a few miles. I could see the discs being helpful.
Up at our cabin, I ride my Fargo constantly and recently upgraded to Spyre discs from BB5s. What a nice surprise.
On my Niner, I have hydraulic 785s and they are outstanding as well.
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#68
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The Kirk Terraplane seat stays have a reverse curve on the dropout end.
This is a stainless Terraplane.
This is a stainless Terraplane.

#70
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I dismiss that as largely marketing, but Kirk is really one of the 5 guys I'd consider if I ever got another custom. Regardless of function, it is beautiful and different...and I really appreciate Mr. Kirk's approach.
#71
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Did you look at Dave's patent?
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That's what confuses me. Why make the claims in the first place? What's wrong with just beautiful and different? Are buyers of Kirk that insecure about their bike's "performance"? How often are they attacking corners in a high speed descent? Does it matter if they exit the corner a couple of mph slower?
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Dave was head of research & development at Serotta, and had access to some very fancy simulation test equipment.
Did you look at Dave's patent?
Did you look at Dave's patent?
I wouldn't deny the truthyness of the claims. But to what end? Seems to me it is just to gin up sales. Again, nothing wrong with that either, guy has got to eat. But is he really that hard up for sales he needs to pitch the "performance" route? Seems an odd choice for a custom steel builder. I don't think he can compete against the monster carbon manufacturers. Why bother?
#74
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If the claims can be proven empirically, why not include them in your marketing?
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He's been in business for a long time. I'd guess his customers are not impulse buyers but people who have thought long and hard about their custom bike. I just don't see puffery appealing to that customer.