Tyre Widths ?

[Randochap]

Above all, a bicycle with narrow tires is much easier to accelerate because the rotating mass of the wheels is lower and the bicycle is much more agile.

Why is there always someone who can say something better than I can?

It's fairly succinct, isn't it. But the even simpler concept to take in is that this will benefit, I'm guessing, not a single person reading this, unless you're interested in nosing out Mario Cipollini in a line sprint.

And as I've said here before, neither will the miniscule aero advantage either, unless you are consistently riding your bike at 50 km/h.

At the risk of repeating myself, what will benefit the overwhelming majority of bicyclists is the added comfort of wider tyres, run at lower psi. This can be had at no significant cost in speed.

 

[marinyork]

I think that's because I'm tending to stay in the one gear and spin on both bikes. Have relented a bit and use the gears for the 'big hill' but it's only 1/2 a mile long. I've come to the conclusion that, though I'll continue to get stronger, the big improvements will come from weight loss. As I'm still hauling 40lbs too much, I think losing that'll make a tremendous difference, especially when climbing.

Since starting I've been gradually upping the gears used, ie never leave middle ring now. But have been static, gearwise, for about a month now. Think I need to look at upping the gear choice again as I'm now spinning out, and freewheeling, too often again. Even on my marathon ride last weekend I only hit the granny ring 3 times, but boy did I need it then Still never used the big ring yet though.

Hmmm just sounds remarkably consistent. On my training loop an average loop is 12mph, a very good loop 13mph (increasingly often), a superhuman loop with broken speedometer is a shade below 14mph and a very crap day <11mph. I've taken the racebike round extrapolating speeds and on a day when I felt very rough it practically walked round the circuit at what was probably 16.5mph (minimum 14.5mph). The limited data I have suggests the bike is 3-5mph faster than the old one with that 2mph band of variation on top. It's certainly less comfortable in some ways though.

 

[MacB]

Hmmm just sounds remarkably consistent. On my training loop an average loop is 12mph, a very good loop 13mph (increasingly often), a superhuman loop with broken speedometer is a shade below 14mph and a very crap day <11mph. I've taken the racebike round extrapolating speeds and on a day when I felt very rough it practically walked round the circuit at what was probably 16.5mph (minimum 14.5mph). The limited data I have suggests the bike is 3-5mph faster than the old one with that 2mph band of variation on top. It's certainly less comfortable in some ways though.

ah, neither is a race bike, the half carbon is a Giant CRS Alliance hybrid and the commuter a Surly Crosscheck, both have butterfly bars.

 

[marinyork]

ah, neither is a race bike, the half carbon is a Giant CRS Alliance hybrid and the commuter a Surly Crosscheck, both have butterfly bars.

Nutter .

 

[Angelfishsolo]

There is nought wrong with butterfly bars - they are awesome

Nutter .