i dont want to jump in with both feet, not knowing anything of the history of the whole thing, but surely this is user error? there been many occasion where for no particular reason ive checked a mates qr's and they have needed tightening up.

ive never had a problem with qr but i now use a bolt thru both front and rear, and i wont be going back to quick release.

How you getting on with your rear bolt thru CGD. I've found mine a little slack on two occasions.

thus far no problems jimmy, but im notorious for tightening things up pretty damn tight! now youve mentioned it ill keep a closer eye on em.

a cnc'd lever with a bit of laser etching would have been better than the plastic lever with a sticker on it, i much prefer them than a qr though..

Big rotors reduce the ejection force and hence the risk.

Oh yeah, I remember now John... there was a classic BM thread on it as I recall..

I feel sorry for the guy, but surely we all ride MTB knowing that we risk serious injury or death everytime we go out and ride.

I will not comment on this case however, I'm pretty sure of the thousands of riders who had the same combo of QR's and Forks this is a one off accident?

It's pretty unfortunate, however if the guy's wheel came off but he landed in the dirt (instead of on rocks) and maybe broke his wrist I don't think we'd see this in the High Court.

People would just consider it "one of those things" imo.  

Big rotors reduce the ejection force and hence the risk.

Surely it's the distance from the brake pad to the drop out not just the size of the disc?

Milfredo.. sorry can't find the thread off hand but have a dig about and ye shall find (possibly).

People would just consider it "one of those things" imo.

But landing on rocks IS just one of those things, everytime you get on your mountain bike you risk fucking yourself up good and proper.

Yes, I agree BHB. I land on rocks all the f00kin time

Is just the level of severity of this guys injuries that has caused it to gain such exposure imo.

Did you hear Tara Llanes taking it to the high court? did she fuck she mtfu and became an ambassador for life rolls on.

grumble grumble mumble etc

if this wheel loosening effect does happen due to frequent braking then yes it needs to go to court,  these products are designed to be used on a mountain bike, where these conditions are very real, manufactures have warnings to check wheels are tight before rides etc, not that you may need to stop during a decent and check your wheels, if they did i am sure most people here would not be buying that combination of fork / QR.

the reason why this has gone to court is bacause of the injurys involved, if you had broken your wrist you would go, stuipd me, but i will heal. Russ will not heal.

if designers went for skinny M3 bolts with thin walled edges that tore out resulting in brake calipers flying off, and you were injured you would sue.

Russ was very unlucky, but vertical drop outs on forks are rubish and i have had my hope QRs loosen on me, with the only thing holding them in is the drop out on the forks, if they were flush the wheel would have come off, i have now stopped using those QRs,

if its bad design then it needs to go to court.

The issue here is not the quick release mechanism, they have and will be used on road bikes for a lot of years.

The problem is that the use of a disk brake sat behind the fork, it causes a change in the rotational centre of the wheel from the axle to the disk where it contacts the rotor. When the brake is locked out the wheels rotational force tries to pull the wheel out of the forks. If the disk brake was mounted on the front of the fork the effect would be to pull the axle up into the drop outs.

The problem doesnt exist with the rear wheel because the disk mount does pull the axle up into the dropots.

If a QR isnt done up correctly then it can loosen over a period of time and if the design of the fork dropouts is such that it allows the wheel to come out easilythen going downhill and braking hard ends up with the accident that happened to Russ Pinder.

As a foot note hope he does get some help with the cost this accident has had and if anyone feels inclined support these people I do.

I would have thought they would increase it due to more leverage??

Nope. Bigger distance between pad and axle (as would happen with bigger rotors) = less leverage on axle. The force is being applied at the contact patch between wheel and ground. However, bigger rotors also = more force on caliper mounts and fork leg, which is why forks have maximum warrantable rotor sizes.

I still don't understand why he thinks that he has a case against Fox, but not Hope?

Well, one possible reason could be that if what is alleged to have happened actually did happen, then had the dropout been at a different angle, then any skewer, however incompetent, would have been fine. 

If this, and i believe it is, the action that is being contested, then moving the pads away from the axle increases the leverage on the axle.

Quote

*There seems to be an effect from the disc brake which causes the quick release to loosen. Since this disc bike was used with the same skewer for over a year with no adjustment, it is apparent that this effect only occurs if the skewer is not tight enough. There is a certain critical limit. Below this limit, the skewer can loosen. Above this limit, it won’t. The limit is dependent on skewer design and rider weight.'

SO make sure your skewers are tightened correctly