Here's a new one

[Trashy]

My friend sent me this pic of his bike.

I've never seen this before, anyone have a theory what happened?

He is a cycling noob and needs to remove the front wheel to transport his bike. I suggested improper installation of the front wheel at some point.

He said there were no noises while riding though...

[117]

That looks like it was dropped on the fork at some stage - probably the only way that tongue will snap off. 

There's enough meat for the QR clamp system to still hold it while riding. Maybe not for redbull big end stuff, but certainly for the average rookie its not a problem.

I'm sure it was dropped then the wheel clamped on for a noob to be none the wiser

 

[droo]

Those dropouts are knackered. Finished. Deceased. Worn out. Joined the Choir Invisible.

There's a minimum thickness specced in the service manual, and those ones are well below, even just eyeballing from here. QR skewers were never designed with disc brakes in mind, so there's a fair amount of movement under braking which will eventually wear out the mating surfaces leading to failure.

[Steven Knoetze (sk27)]

Wheel removed and then dropped onto the fork leg would be my guess........

But Droo knows more, first I am hearing of minimum thickness, QR not intended for discs, etc........

[SwissVan]

Hope the bike was not dropped and then sold by ysteryeti Lionel Hennessy….

looks like a good excuse to upgrade to a thru axle 

[Trashy]

It was bought, used, 6 months ago. He does not ride anything technical.

Quite likely just long term wear and then a small drop to end them. I will share this thread with him and try source a cheap thru axle fork and front wheel for him.

[droo]

14 minutes ago, Trashy said:

It was bought, used, 6 months ago. He does not ride anything technical.

Quite likely just long term wear and then a small drop to end them. I will share this thread with him and try source a cheap thru axle fork and front wheel for him.

I should have lowers, not sure if I have useable QR ones though - what hub has he got?

[Headshot]

I wonder if running the QR a bit loose would contribute? I still have a couple of QR forks on the home fleet and none of them show much wear if any...

[Trashy]

2 hours ago, droo said:

I should have lowers, not sure if I have useable QR ones though - what hub has he got?

Thanks Droo!

He's away for the week and didn't end up taking the bike with him, so I will get back to you when he is home.

[mazambaan]

He took "removing the lawyer's lips" very seriously. Now where did that phrase come from; Johan Borman?