I've not noticed any problem, I usually make sure that they're good and hard before I set off though. That being said the Marathons' do have exceptionally hard side walls; which is one the issues I will be addressing in the upgrades.
Which leads me neatly to my next list:
Problems I've found
The bars aren't compact enough.
The transition between the levers and bars isn't flat enough so hurts my wrist.
Levers are still a bit narrow my my taste.
With my hands on the tops of the levers I'm over stretched.
Seatpost is cheap crap.
Mudguards are a bit flimsy and the mounts are poor.
Tyres, which very tough, give quite a hard ride thanks to the inflexible sidewalls.
Its quite a long reach down to the gear shifters.
Brakes are fine until you've got a heavy load, then they become much to flexy.
The rack needs some kind of light mount to use with full bags.
I've not noticed any problem, I usually make sure that they're good and hard before I set off though. That being said the Marathons' do have exceptionally hard side walls; which is one the issues I will be addressing in the upgrades.
Which leads me neatly to my next list:
Problems I've found