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Old 06-17-2011, 11:47 AM   #20851
jocflier
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Quote:
Originally Posted by Ridge View Post
Yes.

And congrats on losing the weight. Keep it up and that will be better for you than swapping out any chain ring.
Thank you sir. You are a scholar and a gentlemen. Will just keep working.

Joc
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Old 06-17-2011, 12:47 PM   #20852
TheYeti
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[QUOTE=Gummee!;16186897]
Quote:
Originally Posted by TheYeti View Post
I'm not taking it personally. It ain't my bike or wallet. I've GOT cantis on my cross bike and while they're OK for cross, I'm looking at replacing em for the fall. Probably the brakes in the link below.

Mini v-s are a slightly different critter. Less powerful than regular v-brakes but more powerful than cantis.

If you're staying cantilever, get these

M
Mini v-s show me. link me.
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Old 06-17-2011, 02:56 PM   #20853
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Cool that you are losing weight. I'm hoping that is going to start someday for me.

I got a triple specifically because I have bad knees, (six times under the knife on the left one), and I live on a hill that pitches to 17%. Plus I am not racing I'm riding to lose weight, and gain fitness, and enjoy a little bit of that feeling I felt back in the days when I was still pretty much immortal.

The triple rocks as far as I'm concerned.
You can compare gear inches here:
CLICK: Sheldon Browns Gears

I am constantly catching onto the racers plodding along in the big ring while I spin away in the middle. Though last night the kid who spun up the big ring and lower part of his block was impressive. I did have to shift up twice before I was reminded of my age and lack of conditioning.
My bike runs:
52X39X30, and a 10-speed out back, 12-27, that 30 is amazing, oh, and 175mm cranks!
Mine:
113.9 | 85.4 | 65.7
105.1 | 78.8 | 60.6
97.6 | 73.2 | 56.3
91.1 | 68.3 | 52.6
85.4 | 64.1 | 49.3
80.4 | 60.3 | 46.4
71.9 | 53.9 | 41.5
65.1 | 48.8 | 37.5
56.9 | 42.7 | 32.9
50.6 | 38.0 | 29.2


Funny that I spend most of my time right in the middle in that 60 inch gear.

Assuming you have a late model bike with 175mm cranks as well,
Your 52/34:
113.9 | 74.5
105.1 | 68.7
97.6 | 63.8
91.1 | 59.6
85.4 | 55.8
80.4 | 52.6
71.9 | 47.0
65.1 | 42.5
56.9 | 37.2
50.6 | 33.1

52/33:
113.9 | 72.3
105.1 | 66.7
97.6 | 61.9
91.1 | 57.8
85.4 | 54.2
80.4 | 51.0
71.9 | 45.6
65.1 | 41.3
56.9 | 36.1
50.6 | 32.1


Quote:
Originally Posted by jocflier View Post
Chain ring question. I am currently running a 50/34 compact with a 12-27 out back. Old guy with a weight problem. Anyway with all the hill around the bay area, I was wondering if going to a 33 tooth ring would help the old knees. I was able to make it over Mt Eden last week, but paid for it for a few days.

I have been losing a ton of weight so that is helping, I guess my real question is should I get the 33 and use it for a while while losing weight and once the weight comes off go back to the 34, or just keeping working my ass off and deal with the 34.

thanks

Joc
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Old 06-17-2011, 03:11 PM   #20854
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[QUOTE=TheYeti;16190194]
Quote:
Originally Posted by Gummee! View Post

Mini v-s show me. link me.
Your google fu is weak young paduan

AFA 33 ring in the front: I'm not sure that they make one for a 110mm BCD ring. For gear inches/ratios ya gotta remember one simple saying: 1 in the back is worth 3 in the front. So... if you HAVE to have the bigger gears, go with a mtn setup and a 32t big cog.

I know a guy running XX with mtn cassettes and I've heard about Apex having the same ratios.

HTH

M

edited to add: after I typed up 'they don't make a 33t ring, I went and did some googling of my own. They evidently DO make one. Whoda thunk it?!
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Old 06-17-2011, 03:24 PM   #20855
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Quote:
Originally Posted by YakSpout View Post
Car bumps cyclist twice at a red light.

Cyclist flashes badge (she's a D.C. cop) and car takes off.

The rest of the story:

http://girlonabicycle.blogspot.com/2...y-sort-of.html

Looks like that rat bastard bit off more than he could chew!!
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Old 06-17-2011, 03:36 PM   #20856
TheYeti
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[QUOTE=Gummee!;16191294][QUOTE=TheYeti;16190194]Your google fu is weak young paduan


HTH

M

I know ,I'm so ashamed, Thanks for the info. Now I've got to see what changes I've got to make with the levers etc.
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Old 06-17-2011, 04:03 PM   #20857
jocflier
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Joined: Jul 2001
Location: Menlo Park, California
Oddometer: 2,419
The bike is a 08 Look 566 with 175mm crank. I guess I should have done some more homework on the gearing. The bike came with 12-25 which at that time, I could not use. Just too fat and every time I when out, I just knew I was going to have a heart attack. Change to a my current 12-27 without having to go to a longer cage. Really works great, but even with the weight lost ( 50lbs so far), I am still around 230Lbs.

I to have had 3 trip under the knife with my knees. ( football, baseball, dirt bike riding, ect.) rode hard and put away wet as they say. I keep looking at gear ratio like a motorcycle. One tooth in the front equals 3 in the back, but based on your numbers, it is not quite the same. Was just trying to take a little more strain off the knees. I do use the big ring a lot more now on the flat and small hills, so maybe not is all lost.

No reason to spend the bucks for such a small amount. But then again, I spend more than that to change out the cassette. Based on the numbers and how I am riding now, I may run out of gearing on the flats with the small ring. Oh well live and learn.

Thank you for your help

Joc


Gummee. Yep they do make a 33. Not cheap and made only of Ti. I am not that big of a weight wienie. Using Ti on my bike is like taking a sun chair off the Queen Mary and bragging about how much lighter it is.

Quote:
Originally Posted by Mr Head View Post
Cool that you are losing weight. I'm hoping that is going to start someday for me.

I got a triple specifically because I have bad knees, (six times under the knife on the left one), and I live on a hill that pitches to 17%. Plus I am not racing I'm riding to lose weight, and gain fitness, and enjoy a little bit of that feeling I felt back in the days when I was still pretty much immortal.

The triple rocks as far as I'm concerned.
You can compare gear inches here:
CLICK: Sheldon Browns Gears

I am constantly catching onto the racers plodding along in the big ring while I spin away in the middle. Though last night the kid who spun up the big ring and lower part of his block was impressive. I did have to shift up twice before I was reminded of my age and lack of conditioning.
My bike runs:
52X39X30, and a 10-speed out back, 12-27, that 30 is amazing, oh, and 175mm cranks!
Mine:
113.9 | 85.4 | 65.7
105.1 | 78.8 | 60.6
97.6 | 73.2 | 56.3
91.1 | 68.3 | 52.6
85.4 | 64.1 | 49.3
80.4 | 60.3 | 46.4
71.9 | 53.9 | 41.5
65.1 | 48.8 | 37.5
56.9 | 42.7 | 32.9
50.6 | 38.0 | 29.2


Funny that I spend most of my time right in the middle in that 60 inch gear.

Assuming you have a late model bike with 175mm cranks as well,
Your 52/34:
113.9 | 74.5
105.1 | 68.7
97.6 | 63.8
91.1 | 59.6
85.4 | 55.8
80.4 | 52.6
71.9 | 47.0
65.1 | 42.5
56.9 | 37.2
50.6 | 33.1

52/33:
113.9 | 72.3
105.1 | 66.7
97.6 | 61.9
91.1 | 57.8
85.4 | 54.2
80.4 | 51.0
71.9 | 45.6
65.1 | 41.3
56.9 | 36.1
50.6 | 32.1
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Old 06-17-2011, 06:12 PM   #20858
Gummee!
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Joined: May 2004
Location: NoVA for now...
Oddometer: 27,434
Quote:
Originally Posted by jocflier View Post
The bike is a 08 Look 566 with 175mm crank. I guess I should have done some more homework on the gearing. The bike came with 12-25 which at that time, I could not use. Just too fat and every time I when out, I just knew I was going to have a heart attack. Change to a my current 12-27 without having to go to a longer cage. Really works great, but even with the weight lost ( 50lbs so far), I am still around 230Lbs.

I to have had 3 trip under the knife with my knees. ( football, baseball, dirt bike riding, ect.) rode hard and put away wet as they say. I keep looking at gear ratio like a motorcycle. One tooth in the front equals 3 in the back, but based on your numbers, it is not quite the same. Was just trying to take a little more strain off the knees. I do use the big ring a lot more now on the flat and small hills, so maybe not is all lost.

No reason to spend the bucks for such a small amount. But then again, I spend more than that to change out the cassette. Based on the numbers and how I am riding now, I may run out of gearing on the flats with the small ring. Oh well live and learn.

Thank you for your help

Joc


Gummee. Yep they do make a 33. Not cheap and made only of Ti. I am not that big of a weight wienie. Using Ti on my bike is like taking a sun chair off the Queen Mary and bragging about how much lighter it is.
1-tooth difference in the front is gonna get 'lost in the noise.' 1 tooth in the back will help more. Going to a 28t big cog isn't gonna mean new derailleurs unless ya want em. Bigger than that and you'll need mtn stuff. You *may* be able to get a mid-cage to go 30t, but I'm gonna bet that its iffy. I haven't tried it with my D/A 7700 9sp mid-cage rear derailleur...

Shimano? Wanna sell the 25t cassette? Trade for the derailleur (assuming you're running the big S)?

Re: mini v-s. The reason they went 'mini' is so you don't have to change out the road levers on yer cross bike. Nothing but the cantis get switched out. HTH

M
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Old 06-17-2011, 06:22 PM   #20859
jocflier
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Location: Menlo Park, California
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Sorry no. I have it mounted on the Fulcrum 7's that came with the bike. Hope to build a bike for the wife someday. Currently running the Wilson's 30x on the Look.

But thank you for the offer.

Joc
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Old 06-17-2011, 06:33 PM   #20860
TheYeti
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Re: mini v-s. The reason they went 'mini' is so you don't have to change out the road levers on yer cross bike. Nothing but the cantis get switched out. HTH

Thanks for the info.
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Old 06-17-2011, 07:31 PM   #20861
pierce
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Location: S'Cruz
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Quote:
Originally Posted by jocflier View Post
Chain ring question. I am currently running a 50/34 compact with a 12-27 out back. Old guy with a weight problem. Anyway with all the hill around the bay area, I was wondering if going to a 33 tooth ring would help the old knees. I was able to make it over Mt Eden last week, but paid for it for a few days.

I have been losing a ton of weight so that is helping, I guess my real question is should I get the 33 and use it for a while while losing weight and once the weight comes off go back to the 34, or just keeping working my ass off and deal with the 34.

thanks

Joc
33 vs 34 in the front is almost imperceptible. get a bigger cassette in the back and will make far more of a difference.

34/27 is 1.26:1
33/27 is 1.22:1

34:29 is 1.14:1
34:32 is 1.03:1

(29 and 32 being typical larger cassette lows)

do check your rear derailleurs max low gear and max difference... The max difference is (big front + big rear) - (small front + small rear), in your current case (50+27)-(34+12), or 31 teeth. You can often push these numbers a couple teeth but caveat emptor.
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Old 06-17-2011, 07:34 PM   #20862
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re that '1 in back is 3 in front', that works when your ratio is 3:1, but at the lower end of the ratios, its not nearly as accurate. with extreme granny gearing (less than 1:1) in fact the opposite is true.
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Old 06-17-2011, 09:20 PM   #20863
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Old buildings, a river and bridges, and a bicycle ride to boot. Very cool.

Quote:
Originally Posted by 2whl-hoop View Post
Managed to get rides in both days. On Saturday, I went east and took a ride on the country roads out here, 20.5 miles, maybe 30% gravel roads.



On Sunday, I went to the west and rode a 40 mile loop along the Mississippi river, almost entirely on paved paths or streets with designated bike lanes. I crossed the river on the I494 bridge, rode upriver to Ford Parkway, crossed back over, and rode down river back to home.

Overlook on the Ford Parkway bridge:


The Ford lock and dam on the Mighty Mississippi:


The bridge in the background is the Mendota Bridge over the Minnesota river. I crossed this a few miles earlier before crossing at Ford:


Robert Street lift bridge in downtown St. Paul:


This was my longest ride this year, so far, and I felt great. The only problem was I didn't think to bring any food or money with me, only a bottle of Cytomax and a bottle of plain water. I was getting pretty hungry towards the end and was actually worried I wouldn't make the climb out of the valley to get back home (about a mile long, 3%-10%). I made it, but went up verrry sloowwly. Fortunately, it was overcast and only in the low 60s for temps. Next time, I'll remember to throw an energy bar in my jersey....

(I also bought a small point and shoot camera that'll fit in a jersey pocket or jacket when I'm on a motorcycle, so I've been playing with that too. )
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Old 06-17-2011, 09:30 PM   #20864
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I didn't skip riding today.
But, I was a good boy and did not force anything funny deal is that I took it easy with the headwind today and made to my usual marker about the same time I always do. I turned around at 33 minutes figuring I'd get an hour in.

Got home in 54 total. And I stopped to put my floppy tire sock in my back pack because it was bugging me flopping around tied to the seat and seat post.

I don't feel too bad, so I'll ride tomorrow as well. Maybe get to sneak in a ride on Sunday too.
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Old 06-18-2011, 04:49 AM   #20865
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I'm headed out to meet some buddies. They wanna do 60-70 out in the foothills.

Wish me luck!

M
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