Originally Posted by
Doge
On the market >5 years and I have seen year to year model changes.
other than the fact that the venge hasn't changed (save for paint), i agree.
Originally Posted by doge
Nothing happened and yesterday - they had never heard of it.
maybe they were like
"does this guy know you have to clamp the skewer?"
Originally Posted by
Doge
The bike is not here, but there is a basic design flaw. If you draw force vectors/or show a string tangent to the chain ring and to the axle you can see the angle of dropout slot to string. If the up side of that string/dropout angle is acute, the chain pules the axle into the dropout. If it is obtuse, the chain tension will pull the wheel out and clamping tension matters.
Of course two extremes are the old slotted dropouts where wheels had to stay in place near 100% based on clamping pressure and track/TT slots where the wheel could slide, but was never going to come out.
So long ago I made a video to test this using un-clamped skewers. Venge - wheel pulls out. This is as unscientific as my wheel testing videos but it does confirm that the wheels needs that clamping force to stay in. I assume they did this for wheel change benefits.
https://vimeo.com/127089488
can't believe i'm responding, but you're commenting on a bike that's been in production for >5 years, is used by tons and tons of riders from the world tour on down to amateur ranks, and yet you think there is some design flaw because a wheel pulls out when you pedal and it is not clamped?
you realize that skewers have cams that create tension for a reason, right?
internal cam skewers (shimano and campy) are much more secure designs and less prone to slipping/operator error.
anyway.... i definitely know the right people there and could ask again, but that you are reporting an issue with a mature design that no one else has.... did you ever ask yourself
"could it be me?"