Ryan Cousineau said:In article <[email hidden]>,
SMS said:[email hidden] wrote:
Quoted message said:Quoted message said:I dunno, cause I'm also confused about only the very strongest riders
being the ones who don't want triples. I don't want a triple and I'm
hardly among the very strongest riders.
Quoted message said:Not sure of the terrain where you are, but in my area there are many
good road rides that a lot of riders, including you (and me), could
probably not do without the low gearing enabled by the small chain ring.
I'd be doing a lot of walking the bike.
I've got a triple on my mountain bike and I have a triple (by choice)
on my primary road bike.
The race bike (secondhand) came with a triple and that's the first
thing I plan to change when I have the time/money/inclination.
I can think of a total of _three_ paved places in the province where I
must use the small ring. There are still a handful of paved roads
that I haven't been on but even the places that were King of the
Mountains classifications during the Tour de don't require the small
ring. I can choose to go at a more relaxed pace because I have the
triple but it's hardly required.
In fact, since I have a mountain bike 11-28 cassette on the back I
suspect that the gear ratios I use when I've got the 30 tooth small
ring matched to third (or fourth) on the back are more or less the
same as what I had when I only had a double and matched 40 to 28. I
should check a gear calculator.
Let's see (thank you Sheldon)
raw data
-----53 / 39 / 30
11/ 126.6 / 93.2 / 71.7
12/ 116.1 / 85.4 / 65.7
14/ 99.5 / 73.2 / 56.3
16/ 87.1 / 64.1 / 49.3
18/ 77.4 / 56.9 / 43.8
21/ 66.3 / 48.8 / 37.5
24/ 58.0 / 42.7 / 32.9
28/ 49.7 / 36.6 / 28.2
----- 50 / 40
11/ 119.5 / 95.6
12/ 109.5 / 87.6
14/ 93.9 / 75.1
16/ 82.1 / 65.7
18/ 73.0 / 58.4
21/ 62.6 / 50.1
24/ 54.8 / 43.8
28/ 46.9 / 37.5
What do you know, perfect match 37.5 gear inches when I am in the the
preferred 30/21 combo on the current set up as when I was in 40/28 on
the old set up. And the 43.8 gear inches that I might use in the
30/18 combo before switching up to a middle 39/21 and 48.8 inches or
down to the aforementioned 37.5 is also exactly the same as the 40/24
I used to have.
Since I'm not indexed on the front I now have to pay more attention
when shifting but, in return, I got two extra bail-out gears of 32.9
and 28.2. I've actually used them. But not much and only on insanely
steep mountains. The kind that I have problems walking up. I also
get a higher high and although I'm not very likely to go into the
53/12 (let alone the 53/11) the 53/14 at 99.5 gear inches is nicely
sandwiched between the old 50/12 (109.5) and the old 50/14 (93.9) and
my most likely middle ring combos are nicely placed in the middle of
the cassette.
All in all I'm quite pleased with my triple but it's a mountain
optimized luggage carrying bike that I'm thinking will eventually get
v-brakes and wide tires so it can also do cyclocross.
I haven't had my race bike long enough yet to have the slightest clue
what's gear combos I have but I haven't used the granny even once and
I don't plan to. As far as I'm concerned it not only makes my
shifting more complicated (even though it is indexed) and is
uneccessary weight that I've got no real reason to carry around.
Quoted message said:Quoted message said:10-14% or so doesn't sound so steep, but it is.
Quoted message said:"http://www.paloaltobicycles.com/gradeslocal.html"
Hm. 10% is the average grade on the 1 km climb I ride to work. With a
pannier on. In the middle ring on my commuter bike.
I'm good, but I'm not that good. I have ridden up actual mountains for
40+ minutes at a time in a 39/25. Okay, I really wanted a 26, but still.
I'm not even going to make wild guesses at what was on last year's
road bike or what the road bike had before I started ambitiously
changing everything on it but I've also ridden up actual mountains for
fractions of time approaching an hour in far worse shape than I am now
with an even higher gear ratio than that. I didn't like it much but
the punishment and pain were all worth it when the downhill came and I
never needed to walk. (Well hardly ever.)
Quoted message said:Quoted message said:I'd not buy the Fuji Team if I lived in an area where many of the best
road rides go up into surrounding mountains, unless I was a very strong
rider.
Lots and lots of people ride around mountainous terrain with perfectly
ordinary double gearing, not even compact.
Including relatively new cyclists like yours truly was when I came up
with the brilliant plan to ride to Vietnam (mountainous terrain,
double gearing, and luggage). AND I DIDN'T WALK.
Quoted message said:Triples have their uses, and for lots of people, they're a great option.
My father (who is old enough to be my father, naturally enough) is glad
for a triple when riding a hill similar to mine on his commute, but I
don't think undertrained 60-somethings (sorry, Dad) on their way to work
are very close to the median rider, and certainly not in this group.
I'm very fond of the triple on my road bike. Because of it I can go
laden without dismounting the most ridiculous slopes and ride down the
same mountains at speeds that really aren't that clever considering
the state of emergency medical care in this country. One of these
days the road bike with the triple will have wide slicks and v-brakes
and a front rack and that triple is going to help me ride my bike to
Lhasa. But I don't see triples as having much use in the median world
of the median rider.
-M