Anne asked:
>Wait just one gol durned minute! Why am I changing tires to save four
>or five grams? The tubes won't save any weight, 'cause they're the
>same tubes. Is the rolling resistance any different? Should I just put
>the Jack Browns back on?
I would. After wearing out a pair of the highly
Changing trail by 1.69mm has almost as much impact on handling as
changing the color of a bike. Piloting a bike with a fade is just
inconceivable!
Seriously, if you make the tire larger/taller, then the distance from
the contact patch of the tire to steering axis intersection with the
ground also
Can you expand on your thoughts? Explain how a wider tire increases trail
and what that does to the handling of the bike?
René
On Thu, May 27, 2010 at 12:35 PM, William wrote:
> If a Roly Poly is 27.79mm in diameter, and if a Jack Brown is 33.333mm
> in diameter, that's a difference of 5.54mm o
On May 27, 7:06 pm, PATRICK MOORE wrote:
> Didn't Jan find that some light, racing 23s were the fastest rollers?
yes. these are the "skinny" challenge tires i referred to above.
they measure closer to 25mm. i find them to be very fast and
comfortable, but i wouldn't want to do any MTB on them.
Re: Maxy Fasty - I think of the M-F as a JB Green cut down to 584, but
mine weigh 340-350 gm, and I'd think they should be lighter than a JB
if they had the same construction.
For a nice rolling, not-too-expensive 28, I like the Vittoria Rubino
Pro a bit better than the Roly Poly. Haven't ridden
On May 27, 4:28 pm, stevep33 wrote:
> Parigi-Roubaix are as reliable/sturdy as the JB's in my experience.
> JB's are fast, but I find that Parigi-Roubaix are definitely faster by
> a 1 or 2 mph. Maybe it's the placebo effect of wanting a these
> expensive and snazzy tires to be special. Whatever
Parigi-Roubaix are as reliable/sturdy as the JB's in my experience.
JB's are fast, but I find that Parigi-Roubaix are definitely faster by
a 1 or 2 mph. Maybe it's the placebo effect of wanting a these
expensive and snazzy tires to be special. Whatever the case, I prefer
the PR's to JB's.
True,
Fairly sturdy. At least as sturdy as the RP and JB greens have been
for me. I've gotten maybe 4 flats on them over something in the
neighborhood of 1500-2000 miles. I've even ridden them on fire trails
and gravel a few times without any punctures or (visible) sidewall
damage.
By now, the tread has
On Thu, May 27, 2010 at 11:59 AM, Anne Paulson wrote:
> When I got my Roadeo, it had Jack Browns on it. I thought, hmm, this
> is a gofast bike, I'll mount 28mm tires instead. So I bought some Roly
> Polys. I just took off the Jack Browns (used maybe 100 miles) and was
> about to put on the Roly P
On Thu, 2010-05-27 at 12:57 -0700, Aaron Thomas wrote:
> Anne, if you want a 28mm tire that weighs a bit less than the RP, try
> the Challenge Parigi-Roubaix. On my digital scale there was a bit of
> variance between my tires, but they came in between 265 and 280g each.
> My RPs, by contrast, were
Anne, if you want a 28mm tire that weighs a bit less than the RP, try
the Challenge Parigi-Roubaix. On my digital scale there was a bit of
variance between my tires, but they came in between 265 and 280g each.
My RPs, by contrast, were about 320g (despite the official label of
290g).
In my experie
If a Roly Poly is 27.79mm in diameter, and if a Jack Brown is 33.333mm
in diameter, that's a difference of 5.54mm or so. With a head tube
angle of 73 degrees, that means you'll be reducing your trail by
1.69mm
I think that should make the decision obvious.
One reason? Bah! More like 1.69 reaso
On May 27, 11:59 am, Anne Paulson wrote:
> When I got my Roadeo, it had Jack Browns on it. I thought, hmm, this
> is a gofast bike, I'll mount 28mm tires instead. So I bought some Roly
> Polys. I just took off the Jack Browns (used maybe 100 miles) and was
> about to put on the Roly Polys, but I
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