Andrew R Stewart
Join Date: Feb 2012
Location: Rochester, NY
Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Raleigh Pro, Trek Cycle Cross, Mongoose tomac ATB, GT Bravado ATB, JCP Folder
Some thoughts from a non TI hobby guy.
- Light weight VS stiff- Choose one.
- Failure mode- TI has a slow crack propagration mode. Chances the crack was there long before you noticed. This is good! No one wants a quick failure unless you buy Aluminum or Carbon...
- Increased stress elsewhere- Has the flexibility of the frame increased a lot? If not then the crack has not made the stresses fall on the other joints by a lot. If so then the other joints are carrying the stresses and because of their distance from the crack the amount of flex is greater.
- As long as the other joints are in good condition (cracks, bucklings and such) it is very doubtful that there is a concern with any potential added loads they carried.
- Warranties- This is the real issue as i see it. When you purchase a product you enter into an agreement. That means there is some expectation of acceptance on both sides as defined by the written warranty. Part of this is the understanding that life and man made stuff is not perfect but most all the time "good enough". If this is not acceptible then you need to have a different discussion with the next builder... The investment that the builder has in your frame far exceeds your cost to purchase it. Unless he is the exception, he is trying to balance refunding your purchase (which might be limited to only a portion of the total cost, components and wear possibilities), the reputation he has had so far and the intregrity of the frame.
- Unless you have any compelling information i'd go with what your builder has offered. If things go bad a year from now you can always trash him by name then. Andy.