I seem to have a problem with my Klein Quantum with rear triangle flex.
It does this to such an extent that on steep climbs (I working in the
South of France this year - lots of BIG hills) - the tyre can rub
This is not good - not good at all. It hard enough for me - 6'3" and
to get up this ***y hills as it is - without having this additional
I've had a similiar problem with my Bontrager mountain bike where the
wheel moves and the tyre rubs ... the fix seems to be to tighten the QR
_very_ tight ... overly so I think.
I've not noticed the problem with the Klein previously - cos I normally
live in Dallas - a place where there are no hills ... so never need to
get out of the saddle and stomp on the pedals.
I'm running 25mm tires .... I could go thinner - then the problem is
them onto my MA40s. I tried 23mm tires - and could not get them onto the
Sound silly huh ... somewhat embarrassed I took them back to the shop -
they couldn't fit the tires .... I'm not joking ... we couldn't even get
half on. This is why I stick with fat 25s.
Would I have this flex problem with other frame materials .... I'm
bring a European bike back to the States .... non aluminium. I don't
really want carbon - too uncomfortable ... and they're aren't really an
titanium made bikes here (the best ones come from the States) so it'll
to be steel I guess.
Sorry for the rambling ...