joesch

Is the frame all 6/4 TI which is more common larger tube designs?

I ask since I have a Litespeed customized by Douglass who stated the below:

The most advanced tube currently available is 6/4Al Titanium. This can
make a tube that is 30% stronger again, even compared to the best 3/2.5.
However 6/4 is notoriously hard to work with. It’s made into sheets, then
formed into tubes. As these don’t even have to start their life as
cylindrical, 6/4 is ideal for frame designs which demand a high degree of
unusual shaping.

Boerd

According to Passoni, the headtube, bottom bracket and dropout shells are Ti 5, the rest is Ti 9:

Tubes: Titanium grade 9 (3Al/2,5V) with different thicknesses, drawn and strengthened. Titanium grade 5 (6Al/4V) for head tube, bottom bracket shell and dropouts, CNC machined
Front triangle: round tubes, top tube Ø 36,4 mm, seat tube Ø 35 mm, down tube Ø 48 mm Bi-oval.
Rear triangle: seat stays taper Ø 19 mm. Oval chain stays taper 31x20 mm
Bottom bracket shell: titanium grade 5, CNC machined, Passoni engraved logo, BSA threading
Head tube: integrated conical Ø 56 mm, CNC machined, bearings Ø 1"1/8 upper – 1"1/2 lower
Dropouts: Passoni project, shell–shaped, titanium grade 5, CNC machined Ergal replaceable hanger
Seat post clamping device: seat clamp customized Passoni
Finishing / Graphics: tubes glazed by hand, graphics applied directly on the tube in titanium by sandblast
Colour: Pure Titanium
Fork: Columbus Futura Caliper, customized Passoni

joesch

Quite a work of frame building and architeching science and art. Love the finish work and the engraved badge. Must ride like a dream.

nycracer1986

why in gods name would you disgrace that wonderful Italian frame with SRAM group? Puke

tankist

I'm wondering the same. Campagnolo does have some beautiful wireless components, no?

Mackers

That were introduced only a few months ago.....

georges1

superb frame and bike the welds are magnifisicient. Thanks for sharing and enjoy your bike

nycracer1986

jokes aside, this is a beautiful frame. I’ve been considering getting one myself from Passoni or from Doriano de Rosa at Bixxis.

how does the Passoni ride? Which finishing did you do? Sandblasting of hand finishing?

joesch

Would have been nice to hear about the ride from OP Boerd who last posted on BF 6/22.
Would have been nice to hear how it compares to his Moots?
I love the ride on all my Ti bikes including classic Colnago Titanio which is a BiTitan model so quite diff frame design.

nycracer1986

do you have experience with modern steel frames? Considering a BIXXIS steel or Ti frame build. How does the ride quality compare steel vs. Ti? I’ve been told not much of a difference at all. Is this your experience?

vespasianus

Call me thick, but are you not the person who just spent $24,000 on a new Pinarello and are having problems?

joesch

There is a difference and the newer steel frames are closer to TI in performance, comfort and feel.
Even the latest AL frames were nice improvements over the vintage AL frames.
Same story for CF, the older lugged CF frames are not as stiff and light as the latest CF.

nycracer1986

in a comparison between a new modern Ti frame vs Modern Steel frame, is there a noticeable difference? I’m going to order a Bixxis made to measure from Doriano and still haven’t decided ti vs steel. He says that the two frames ride very similarly however Ti of course has the advantages of minor weight savings and will not rust or corrode with time. Evidently the ride quality is about the same between the two? Is that your experience or do have you experienced a difference in ride quality that is noticeable?

assuming it’s the exact same frame from same builder, differences just being the material (steel vs Ti)

joesch

The rides will be pretty close, not much diff.
If cost is a factor, go steel.
This link will support that choice: https://www.rodbikes.com/articles/st...-titanium.html

Atlas Shrugged

Given your recent experience with your $24K Pinarello, I hope you are choosing a different bike shop for this purchase. Bixxis uses Columbus Spirit which is very close to Stainless in corrosion resistance so that is not a deciding factor. Also the weight savings at this level are nonexistent for titanium. You should talk to the builder as well as the bike shop you have selected for this purchase and outline your particulars as well as use case.

nycracer1986

I’m not buying through a shop - I’m buying from Bixxis and I spoke to Doriano Derosa (the builder) as I said in my last post and as I mentioned he said they were of very similar ride quality. I was just curious if you guys had experience. Regarding the Pinnerallo that everyone keeps bringing up (thank you yes it’s a beauty) I’m not having major issues - I was just saying the wireless app connection wasn’t working properly so I couldn’t make the modifications it will allow like shift assist and shifting speed etc. Someone in that thread commented with the contact info for Campagnolo USA whom they said have helped them wirh a similar issue before so I look forward to doing that.

im likely going with TI on the Bixxis frame though - I was curious what the experience was here. I think I’m all set though thanks for the intel

nycracer1986

I’m not buying through a shop - I’m buying from Bixxis and I spoke to Doriano Derosa (the builder) as I said in my last post and as I mentioned he said they were of very similar ride quality. I was just curious if you guys had experience. Regarding the Pinnerallo that everyone keeps bringing up (thank you yes it’s a beauty) I’m not having major issues - I was just saying the wireless app connection wasn’t working properly so I couldn’t make the modifications it will allow like shift assist and shifting speed etc. Someone in that thread commented with the contact info for Campagnolo USA whom they said have helped them wirh a similar issue before so I look forward to doing that.

im likely going with TI on the Bixxis frame though - I was curious what the experience was here. I think I’m all set though thanks for the intel