Titanium frame issue

[Liberace]

Originally Posted by chiasticon

RIGHT!?! why would one do this...?

The original brakes were Hayes and the owner bought a pre-bled kit. He hacksawed the cable guides to install.

[SlowPokePete]

Originally Posted by Liberace

The original brakes were Hayes and the owner bought a pre-bled kit. He hacksawed the cable guides to install.

I wonder what other stuff he felt qualified to modify.

SPP™

[Peter P.]

Originally Posted by chiasticon

RIGHT!?! why would one do this...?

I agree with Liberace. My guess is the frame was built for cable actuated brakes. By opening up the stops and removing the stop at one end, the bike was essentially modified for hydraulic cable routing.

Get some replacement guides welded on.

[mjb266]

cut them off, file them close to smooth, scotchbrite, then buy some double zip ties (dual-mount cable ties)

There are tons of interesting fixturing solutions. Grab a McMaster catalog and get creative.

Or...JB weld, duct tape, electrical tape, bubble gum

[eddief]

Flexroute:

https://bikerumor.com/2015/04/03/fle...-rub-mounting/

https://www.aircraftspruce.com/catal...RoCAQwQAvD_BwE

or:

https://www.ebay.com.au/itm/Origin8-...-/263937353314

[seanile]

file em off, sand em smooth as others said.
but then buy some of the mitered cable guides for use with zipties from here that match the tube size, https://www.paragonmachineworks.com/...062auaa1f7ltq6

figure out what epoxy firefly uses gluing their carbon into their titanium lugsets and use that to glue the cable stops on.

[Jeff N.]

Ahem...disregard what I said earlier about sending it to Seven.

[old fat man]

Back in the stone age, seven used closed loop guides for people running hydro on mtbs. It was common to have to cut lines to the right size and thread through the loops. Stupid, but common.

Sounds like you bought a bike that was one step from the dumpster. If you can, sand them smooth and fit the modern hydro line in, then zip tie or use pliers to bend the ti back around the hydro line.

Geometry of that thing is probably optimized for a 63 or 80mm fork too.

[Mikej]

Originally Posted by old fat man

Back in the stone age, seven used closed loop guides for people running hydro on mtbs. It was common to have to cut lines to the right size and thread through the loops. Stupid, but common.

Sounds like you bought a bike that was one step from the dumpster. If you can, sand them smooth and fit the modern hydro line in, then zip tie or use pliers to bend the ti back around the hydro line.

Geometry of that thing is probably optimized for a 63 or 80mm fork too.

Not really "stupid" - I much prefer the through hose guides vs. zip ties. But, I understand a lot of cyclists are not keen on how easy it is to cut a hose at the lever, unscrew the fitting, cut hose to fit, then install a new olive and tighten down fitting, top off fluid and done. Pre bled systems have always required hose shortening, even if you have zip ties.

[Liberace]

Thanks for all the feedback. The bike was well under $200 and is a project.

I think cutting them and using zip ties will be the most cost-effective solution.

[slowgoing]

Ti Cycles in Portland. Ti fabricators and repair. Call em after NAHBS if you want a quote.

[merlinmurph]

Uh, file/cut/sand?
This is ti. What kind of tooling is needed to do this?

[Mikej]

Originally Posted by merlinmurph

Uh, file/cut/sand?
This is ti. What kind of tooling is needed to do this?

Ti is easy to file and sand, it’s almost soft. Machining it is different, it’s chewy and it pulls.

[merlinmurph]

Originally Posted by Mikej

Ti is easy to file and sand, it’s almost soft. Machining it is different, it’s chewy and it pulls.

Seriously? 3/2.5 ti?
I remember reading about building ti frames years ago and how it just ate up tools - grinders, etc.
I've never worked with it, so I have no idea. This was the just the impression I had.
Thanks!

[Butch]

If you cut and file, take you time and be careful. I have seen quite a few of these go badly. Once a shop cut right into the seatstay, got to see the inside of the tube. Easy to gouge the ti with a slip