AXAxel wrote: a lateral stiffness of 108 Nm/degree for a size L/56
Hi Nils, how is that measured? I.e. is is the stiffness between the fork dropouts and the rear dropouts, or head tube to rear dropouts, or ??
How does it compare with other frames?
Moderator: robbosmans
AXAxel wrote: a lateral stiffness of 108 Nm/degree for a size L/56
eric wrote:It would seem that too much lateral stiffness would be bad for cornering. MotoGP discovered that a while back. When leaned over the frame needs to flex a certain amount to allow the wheels to move when they go over bumps. I have no idea what the ideal amount would be, but as a tall but light person I expect it'd be lower for me than for the average rider on my size frame.
This (the desired flex when leaning the bike) actually also is the very point why we do not favour one-piece composite wheels with laminated spokes: Whilst it indeed is a big advantage for lateral stiffness the wheels in effect will also be very stiff vertically (both as the spoke is not adequately able to suspend as well as to "move into" the rim) which will drastically reduce cornering grip and worsen rolling characteristics.
tharmor wrote:Ok, I'm impressed!
If the decision is made to make a disc brake variant of this frame, it will rise to the top of my list. I genuinely hope it is seriously being considered. (I suggest that you allow the inner-German in each of you to come out. Once this has happened, you all will realize that disc brakes are the most German thing you could do )
Mario Jr. wrote:This (the desired flex when leaning the bike) actually also is the very point why we do not favour one-piece composite wheels with laminated spokes: Whilst it indeed is a big advantage for lateral stiffness the wheels in effect will also be very stiff vertically (both as the spoke is not adequately able to suspend as well as to "move into" the rim) which will drastically reduce cornering grip and worsen rolling characteristics.
While I agree to a certain point that under certain circumstances it can be beneficial with a frames being able to flex a bit, I call BS on that argument. The amount of vertical flex in wheels is to tiny that it can't have any practical effect on cornering. If you read any study of wheel flex, you can see that any wheel in fact has very little vertical flex. And if the spoke moves into the rim, you are either riding a wheel underbuilt for your size or facing a big problem as you have just hit a major hole in the road. OR, that the rim itself is too soft...
To me it seems like an unneccesary and incorrect lash out to your competitors on the wheel side, LW.
spytech wrote:Does the Vial evo have enough space for 28mm tires?
spytech wrote:The SRT 28 rim, will be sold as rim also like the SRT 24 and the clincher MTB rim?