Frame Crack

[JJDT]

Refer to my topic regarding the shifting, now I have an even bigger problem.

 

Yesterday afternoon while cleaning my bike saw this crack on the frame.

 

Can it be repaired?

 

Was this basically the weakest point on the frame?

[shaper]

How old the frame, maybe still under warranty? What material the frame?

[Flowta]

Eina!

 

Have to ask, how deep is the seatpost into the seatube?

[Falco]

That frame is toast.

[rouxtjie]

Eina!

 

Have to ask, how deep is the seatpost into the seatube?

That frame is toast.

That and that

 

Frame moertoe....post wasnt deep enough into the frame.

[MrJacques]

Alu is difficult to repair - welding will usually undo the hardening / heat treatment on the frame and it will break again. Better to get another frame.

[Generaal Gert]

That is the exact same place I cracked my frame last week...

[Aaron_B]

If you're the original owner GT offers a lifetime warranty on the frame. Worth investigating.

[Steven Knoetze (sk27)]

What do you guys think about repairing a crack like that if you wanted to use the frame for a SS/commuter build?

[Vetseun]

Eina!

 

Have to ask, how deep is the seatpost into the seatube?

Agreed

[Pappa Bear]

What do you guys think about repairing a crack like that if you wanted to use the frame for a SS/commuter build?

 

can be done - I have on a previos occasion beefed up a cracked frame, with another piece of 6000 series aluminium before.......

[JJDT]

Seatpost is about 1/2 way out, first thing I checked when I saw the crack.

@Aaron_B no I'm not the original owner, bought the bike about two years ago privately.

[Pappa Bear]

Seatpost is about 1/2 way out, first thing I checked when I saw the crack.

@Aaron_B no I'm not the original owner, bought the bike about two years ago privately.

 

Try and repair it as follows (worth a shot):

1) Drill 1mm holes at the end of the cracks - this will prevent the crack from "growing"

2) Weld the crack closed - obviosly take it to somebody that can weld aluminium

3) See if you can get a piece of alumium that is the same as your bike (should be 6000 or 7000 series aluminium) and beef your frame up by welding it in to that small triangle between the upper, down and sea tubes.

4) Have your frame powdercoated afterwards - the baking of the frame - part of powdercoating - would allow for "aging" of the aluminium welds

[Pappa Bear]

Try and repair it as follows (worth a shot):

1) Drill 1mm holes at the end of the cracks - this will prevent the crack from "growing"

2) Weld the crack closed - obviosly take it to somebody that can weld aluminium

3) See if you can get a piece of alumium that is the same as your bike (should be 6000 or 7000 series aluminium) and beef your frame up by welding it in to that small triangle between the upper, down and sea tubes.

4) Have your frame powdercoated afterwards - the baking of the frame - part of powdercoating - would allow for "aging" of the aluminium welds

 

forgot to add.........

 

once done get stickers from Tyrone!

[Guest Smimby]

There was someone here on the hub that advertised their services to weld alu frames.

 

Apparently they do heat treatment etc.

[Guest Smimby]

https://community.bikehub.co.za/topic/138920-aluminium-welding-specialist/page__hl__welding