Advice on "float"

I have been gradually clocking up some km's and on the first real steep hill I have been down I certainly experienced what seemed like floating sensation of my wheels, kinda as if I were on rollers. The thought of this occuring over a stray stone or loose ashphalt was a worry.

Anything to be concerned about? Is a thing with tubs? or do most track/fixed bikes esperience this down hills?

I was going pretty fast and trying to ensure my pedal stroke was as smooth as possible to prevent it form getting outta hand but I certainly was aware of the movement and had to keep it in check....

BTW, no brakes, not an urban route at all, no other cyclists aorund, high vis and 1/2 a lane to ride in during 95% of my time on this ride...

tyres at the right pressure?

thnaks lpg. could be the case, the front was 90ish and the rear on hundred, I really should have head em higher, was like resistance really!!

do the wheels rock from side to side when you move them by hand?

90ish and the rear on hundred.

That's low for clinchers and very low for tubs.

Yeah it think that's a little low. I normally have 120 on the rear and 100 on the front.

Floaters are a problem.

Yeah it think that's a little low. I normally have 120 on the rear and 100 on the front.

. . . and that is just his trousers.

90psi is actually almost touring tyres pressure, defintely a little more boost in the tyres.

yeah thanks guys, going up the lbs now to use their pump, the one i packed for the trip home is substandard. My good pump is 7 weeks away in the container!!!

LPG - no the cones are all sweet

note - yep 80 in fornt 100 in back, bit dodgy to say the least, 115 and 120 now see how that runs on same hill

90/100psi isn't particularly low (especially on clinchers). If anything, running high pressures cause the bike to feel more skittish on fast descents - less compliance, so road irregularities cause 'mini-air' moments. There's usually a happy medium with tyre pressure, based on the characteristics of a ride e.g. bad road surfaces, wet road surfaces, rider weight/speed, loaded/unloaded bike.

I know tubs are usually run at higher pressures, but you can also get away with lower ones (compared to clinchers) without the tyre deforming weirdly.

If you're 'floating', I'd say that's a good thing; if you're 'bouncing' in a very squishy fashion - i.e. not just due to poor pedalling form - that's the time to increase pressure a little.

They are where I work, someone is seemingly incapable of using the flush, it's disgusting.

Floaters are a problem.

What tyre size are you running? I run 25c at 95/105 (I'm 145lbs) - much below this it feels too soft (comfy though), much above this and the bike feels too jumpy/unstable on pothole-ridden descents.

I've got some advice for you, Dan...

Stop poncing around down under and come back to a proper country...

(any offence to Aussies/Kiwis is not intended, unless they're Dayno)

They are where I work, someone is seemingly incapable of using the flush, it's disgusting.

yeah WTF is that all about - always some wierdo forgots to flush or sts all over the place in an office as well >.< , or the best ive encountered so far a fe*king floater with the remainder of a steak slice packet next to the bowl --- like wtf eating thier lunch whilst having a st...

ok rant over, it just gets really on my t*t's people's lack of toilet skills.

a fe*king floater with the remainder of a steak slice packet next to the bowl --- like wtf eating thier lunch whilst having a s**t...

I have to admire the efficiency... chuck it down, extract the nutrients then sh!t it out in the space of a few minutes. Class.

Ugh that's horrible. I've never seen anything that bad. If find there's always one in every office though.