Ducati Sporting Club UK > Model Specific - Discussion, Technical Problems and Help > 999 / 749 > mono subframes ? made of cheese

[Gizmo]

As Pete points out the seat load is supported in front of the crack so its weight from behind, adding a set of panniers at 10 - 20 kg would load it quite a lot. From the ones i've seen its not just load related, its a flexed stress area and it looks like crack comes from the end of the weld, thats a fairly common one on mountain bike frames so we try and avoid welds ending like that. alloy tubing is thin, 1.2mm - 2mm being the norm.

[Wave]

Okay basically i wrote a big letter to ducati saying even though my bike is out of warrenty its unacceptable for the subframe to snap on a 2 year old bike etc etc

They got intouch with ProTwins in godstone who currently have the subframe, they told me today the subframe cannot be fixed and ducati are going to pay for a new one.

Good news

[mileypau]

Originally Posted by Wave

Okay basically i wrote a big letter to ducati saying even though my bike is out of warrenty its unacceptable for the subframe to snap on a 2 year old bike etc etc

They got intouch with ProTwins in godstone who currently have the subframe, they told me today the subframe cannot be fixed and ducati are going to pay for a new one.

Good news

Old thread...old problem....I got it.

2005 sub frame snapped both sides - never had panniers or extra load. Snapped behind where I sit. Noticed at track day today as exhaust moving around.Other 999s 749r owners put me in rigth direction.....let's see what Ducati say when I get in touch. 7 yr old bike !!

[gsxr7111000]

I snapped 2 in the last 3 years.
Ducati wont do anything anymore.

I had 4 new ones in stock, But sold them to a ducati breaker, If you want his number PM me.

Its the exhuast that splits them. I machined some larger rubber mounts for the sub frame, Problem sorted