[crux]

I’ve been thinking about getting a new frame built up and was considering having the CS transition into the Top tube effectively having a dual top tube design. The seat tube would be tied in of course, but was thinking if having the CS placed wide clearing the ST would interfere with the rider when the bike is leaning back and forth on a climb. Or if there could be any additional negative side effects with a twin top tube design.

Looking for honest opinions and input here.

 

[jocko]

I've been thinking about getting a new frame built up and was considering having the CS transition into the Top tube effectively having a dual top tube design. The seat tube would be tied in of course, but was thinking if having the CS placed wide clearing the ST would interfere with the rider when the bike is leaning back and forth on a climb. Or if there could be any additional negative side effects with a twin top tube design.

Looking for honest opinions and input here.

Do you mean seat stays? Like a Retrotec? http://ingliscycles.com/bikes/retro_twin.php

 

[crux]

Do you mean seat stays? Like a Retrotec? http://ingliscycles.com/bikes/retro_twin.php

Yep that pretty much nails it.

 

[Walt]

Neato

Positives:
-Cool look.
-Easier fabrication in some cases

Negatives:
-Heavier (probably not noticeable)
-Arguably flexier (again, not something you'd probably notice)
-Possibility of banging your knees on the TT more

I'm about to start working on one for a friend/customer/geek, we'll see how it goes. Of course, it's also a 36er, so it won't be super comparable to a "conventional" bike.

-Walt

 

[vulture]

Oops gotcher seatstays mixed up with yer chainstays. I did some like this.

good luck, Walt hit the pros and cons on the noggin.

 

[D.F.L.]

Increases likelihood of failure at the HT.

 

[Evil4bc]

Easier to route suspension linkage also

 

[j-ro]

Valid question and I wondered the same thing but I have had absolutely no issues with the set up I built for myself.

 

[Vlad]

Those Sunn DH bikes were so b!tchin'.

 

[Evil4bc]

Yea there the sickest :thumbsup: , I was trying to find a pic of the older steel versions darn google made it almost impossible to find even that one.

 

[Vlad]

I saw one at a Team Southridge DH race in Fontana 10-12 years ago. It was nice, dark navy blue. Easily one of the coolest bikes I've ever seen.

 

[Walt]

Now THAT...

...is what I call a DH chainring!

-W

 

[crux]

Oops gotcher seatstays mixed up with yer chainstays. I did some like this.

good luck, Walt hit the pros and cons on the noggin.

Doh! your exactly correct. Glad everyone knew what I was thinking and not what I was typing. Was thinking Seat Stays not Chain Stays.

Really nice work on that frame. Any feedback on how it rides???

 

[Brad Bedell]

Oops gotcher seatstays mixed up with yer chainstays. I did some like this. https://farm3.static.flickr.com/2432/3995171091_13e07fb9ac_b.jpg
good luck, Walt hit the pros and cons on the noggin.

Nice work!:thumbsup: .

 

[Joe Nation]

Increases likelihood of failure at the HT.

[citation needed]