Just thought I`d post the question for general discussion.
I`m not a frame builder myself but have built a number of bikes up for a small Canadian company that had some titanium frames custom made to their specs using a mix of round and oval tubing and specific geometry specs.
The supplier is a Chinese company that interestingly enough, apparently also supplies titanium frames for a number of well none companies in the USA that claim to be marketing their own frames but I guess are just rebranding them.
The reason for the post is that three frames were ordered with a BB30 configuration and NONE of those three met the tolerance specs for BB30 bearings. The possible issues were discussed at length with the `supplier` ahead of time who assured us that they had done this previously and it wouldn`t be an issue. Supsequently, of course, the claim was that had been no previous complaints.
Understandably, titanium can be a little tricky to machine, but in my opinion any frame should be QC`d for quality control before being shipped. Also understandably - the group is currently negotiating with a Canadian supplier.
So I`m curious - anyone else making and/or having difficulties with BB30 dimemsioning? This is being pushed as a `new and better system`, but it`ll only be new and better if built to spec.
The threaded bottom brackets weren`t an issue, although there were some other details (again tolerance related) that I would personally consider unacceptable on a frame that a supplier is charging about $1,000 to put together.
Cheap labor obviously isn`t the answer to everything. Particularly if you don`t get what was specified.
Thoughts? Experiences? Is this the right forum to post this kind of thing?