where on a bike is there the most stress

[BIGHAIRYDUDE]

just wondering, if you had a normal v frame front suspension mountain bike what joints/welds/general areas take the most amount of weight and are most important structurally

 

[Gizmo]

Seat tube and down tube just above the bottom bracket. All kinds of torsional and bending stresses. Next would be the joints of the top tube and down tube where they meet the head tube.
Gizmo

 

[clamdigger]

My guess would be the point at which the rear dropouts connect to the rear triangle.

 

[B607]

These days, I think the rider has the most stress. Gary

 

[BIGHAIRYDUDE]

Seat tube and down tube just above the bottom bracket. All kinds of torsional and bending stresses. Next would be the joints of the top tube and down tube where they meet the head tube.
Gizmo

thanks

 

[socal_jack]

Most of the frame breaks I've seen people post on mtbr were either at the head tube where the down tube connects or at the seat tube usually where the suspension connects to, especially on a segmented seat tube.

 

[deorman]

The crown and both ends of the down tube are normally the most stressed, followed by the upper seat stay joints. Front suspension reduces both quite a bit. :| If you get big air 8) or run head on into something solid :shock: the dynamics change somewhat. :mrgreen:

 

[Uncle Stretch]

The most spots I have seen rewelded on old frames is where the seatpost hooks to the BB.

 

[iven]

The most spots I have seen rewelded on old frames is where the seatpost hooks to the BB.

heres a good proof of that..

not broken i dont think, cut for somereason, stuck with it now... till i can fix it :|