Ezee Sprint Frame failed

[aaannndddyyy]

This morning I was out for a morning ride and what felt a bit like an under inflated rear tyre turned out to be a crack in the frame down tube(seat tube) .
Any one out there able to help solve this problem. The only things I can think of is ether another frame, or finding a steel tube that will fit inside what’s left of the down tube and makeing a very long seat post.
[IMG][/IMG] [IMG][/IMG]

[Rod Tibbs]

Crikey! How did you manage to do that?

If you have the bit that broke off it should be possible to get a local engineering firm to weld it back on. The puzzle is how it came to break and how likely is it that it might go somethere else on the frame.

Good luck,

Rod

[flecc]

You threw me there with down tube, it's the seat tube that's failed.

Ideally a welder who can tackle alloy, not just welding it but adding a reinforcing blade as an extension of the blade that supports the rear A frame tube loop where it goes around the seat tube.

Your alternative is cheaper if you can find the appropriate size though, but it won't leave much room for seatpost adjustment.

I know that a number of Sprint frames were known to be suspect and were changed under warranty as a recall, but no way of knowing if your one bought second hand was an affected one. Also this is your souped up Sprint as I recall, capable of truly scary speeds and living up to it's name!
.

[aaannndddyyy]

Originally Posted by Rod Tibbs

Crikey! How did you manage to do that?



Rod

I think a combination of the bike being a step though (so no top tube bracing) and the step angle of the frame seat tube a lot steeper than my Daughters wisper which isn’t far off from being vertical, and a longer than standard seat post to accommodate my 34” inside leg all combined to put to much stress at that point of the frame .
The extra toque and top end speed might have had something to do with it, now running at 28 amps and 55 volts, instead of the standard 16 amp 36 volts.
Thank God and Flecc I still have my trusty Giant Lafree to keep me Emobile.