Bicycle Mechanics - dependability

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I am really having problems here. I went 100's of miles early in the season with no problems. Since I have had 2 busted spokes and so many flats I have lost count. I am really good at not hitting chuckholes or bumps, I am very careful iwth it. I have a 2005 Raleigh Grand prix with 700c x 25 tires. I have been riding along on smooth road when the spokes popped. I keep it clean and well lubed. What else can I do. I pick up students next week and cannot be late to work anymore. I am just over 200 lbs and was up to 235 when I bought the bike. Does evey one have some problem about 1 or twice per week? Today my bike is parked in my office. Everything was fine about an hour ago. I change and get ready to leave and the damn tire is flat. I can change it and I even have a pump in my office but now I have to wait till someone calls me back so they know I am going to be late. Just dang frustrating.
bikeman715
08-19-08, 03:06 PM
I would true the wheels or take it yo your lbs and let them do it., and make sure the spoke tension is up to where it should be.check the spokes nibble so they are not cutting the rim tape or tube. I would also check the tires for somethings in them.(like broken glass, nails ,ect.).keep your air presser up too.
I would true the wheels or take it yo your lbs and let them do it., and make sure the spoke tension is up to where it should be.check the spokes nibble so they are not cutting the rim tape or tube. I would also check the tires for somethings in them.(like broken glass, nails ,ect.).keep your air presser up too.
thanks, we did all that again. This wrench spent several minutes searching for glass and inspecting the tube. I took it in to have the spokes trued up and just checked out, and a new liner over the spoke nipples. He did a great job so I decided to go head and buy a new wheel. I ordered a 36 spoke mavic and gator skin tire. Hopefully no more busted spokes and flat after flat. Even if I have problems I have a spare now. I get sick of riding to work in a car.
Nessism
08-19-08, 07:34 PM
Cloth rim tape like Velox is mandatory in my opinion if you want to avoid problems. Also, make sure the spokes are not loosening up while riding - get yourself a Park tension gauge and learn how to use it.
LarDasse74
08-20-08, 07:55 AM
thanks, we did all that again. This wrench spent several minutes searching for glass and inspecting the tube. I took it in to have the spokes trued up and just checked out, and a new liner over the spoke nipples. He did a great job so I decided to go head and buy a new wheel. I ordered a 36 spoke mavic and gator skin tire. Hopefully no more busted spokes and flat after flat. Even if I have problems I have a spare now. I get sick of riding to work in a car.
I have posted on this forum <100 times, and I bet half of my posts have contained this advice: "If a spoke breaks on your wheel, get all the spokes replaced" You have done the right thing by ordering a new wheel. Just be sure to check the tension (or take it back to the shop after a month or two of riding to make sure you have not lost spoke tension... low spoke tension is (ironically) why most wheels get broken spokes, and low spoke tension is often caused by not properly tensioning the wheel in the first place or by not stress relieving the spokes after building.
As for flats, I think replacing the tire and rimstrip will solve that problem. Even if there is not a foreign object in your tire, a tire with 100s of miles will be worn, (some will be worn a lot) and the thinner tread could be allowing tiny things to penetrate. Also! Make sure you check your tire pressure regularily with a guage! If your tire is a narrow road-bike style then do not ride with pressure below ~90PSI, if it is a bit wider (say ~30mm) then probably 65psi should be a minimum... 35mm and above, maybe 50psi on the road minimum. There is a reccomended pressure on the side of your tire and you should keep your tire inflated to this pressure. Buy a good floor pump with a pressure guage.
I have posted on this forum <100 times, and I bet half of my posts have contained this advice: "If a spoke breaks on your wheel, get all the spokes replaced" You have done the right thing by ordering a new wheel. Just be sure to check the tension (or take it back to the shop after a month or two of riding to make sure you have not lost spoke tension... low spoke tension is (ironically) why most wheels get broken spokes, and low spoke tension is often caused by not properly tensioning the wheel in the first place or by not stress relieving the spokes after building.
As for flats, I think replacing the tire and rimstrip will solve that problem. Even if there is not a foreign object in your tire, a tire with 100s of miles will be worn, (some will be worn a lot) and the thinner tread could be allowing tiny things to penetrate. Also! Make sure you check your tire pressure regularily with a guage! If your tire is a narrow road-bike style then do not ride with pressure below ~90PSI, if it is a bit wider (say ~30mm) then probably 65psi should be a minimum... 35mm and above, maybe 50psi on the road minimum. There is a reccomended pressure on the side of your tire and you should keep your tire inflated to this pressure. Buy a good floor pump with a pressure guage.
Thanks for the advice, I am meticulous about maintaining the pressure but I never thought bout taking my new wheel in after a month or so.
Well I am getting ready to ride home. I am afraid to see if I have air in my tires etc. Oh well here goes.
G piny parnas
08-20-08, 02:46 PM
what does a spoke nibble?
G piny parnas
08-20-08, 02:50 PM
I truly sympathize with your frustration--- I just pushed myself to be a wheel truing gold metalist and a 3 min tire changer-- I got mad and pushed myself to do it and learn--- the more problems you have the smarter you get---- get dirty---
what does a spoke nibble?
nipple?
I know about the learning the hard way thing, I can change a flat in about 5 minutes. But I am getting tired of working on it instead of riding it. The LBS has waht sounds like really good wrench classes. I will do that this winter.
Oh yea, made it home no problem. Nice ride, thought it was kinda hot, sure enought it was 86 degrees when I got home. Where did all these dang scooters come from?
cdalefan
08-21-08, 06:18 AM
what does a spoke nibble?
Apparently tubes!
Just busted another spoke. Just over a week without a breakdown. I ordered a new wheel over a week ago. A Mavic my LBS says will be very dependable. No bumps nuthin. Just snapped, wheel is so out of true it was hard to get it home.
I truly sympathize with your frustration--- I just pushed myself to be a wheel truing gold metalist and a 3 min tire changer-- I got mad and pushed myself to do it and learn--- the more problems you have the smarter you get---- get dirty---
I am gonna learn how to do that this winter. But right now i have to come up with something dependable enough to make it 30 miles per day 3 or 4 days aweek till it snows.
speedlever
08-31-08, 11:28 AM
I admire your persistence in the face of your maintenance issues. Although I would like to know how to true wheels, etc., I hope I don't have to learn by necessity.
Just curious.. how much weight do you plan to lose? 35lb loss is excellent.
mechBgon
08-31-08, 12:57 PM
Just busted another spoke. Just over a week without a breakdown. I ordered a new wheel over a week ago. A Mavic my LBS says will be very dependable. No bumps nuthin. Just snapped, wheel is so out of true it was hard to get it home.
Mavic, shmavic. What brand are the spokes? That's the starting point, if you want to fix spoke breakage: high-quality spokes such as DT Swiss or Wheelsmith. In this situation, consider having the wheel rebuilt by hand using DT Swiss 14-15ga. double-butted spokes, by someone who's decent at building wheels.
gosmsgo
08-31-08, 12:59 PM
You need to have someone build you a wheel with some heavy stainless steel spokes. I used to break spokes all the time on the stock wheel that came on my trek 7.3fx while pulling 300#'s on a bikesatwork trailer.
Now that I have my new wheel that does not happen.
My recommendation is to also buy some schwalbe marathon plus tires. You will not get a puncture ever again. I've never known of someone who has flatted while riding these. I personally only have 3,000 miles on mine but have not had a flat yet.
I admire your persistence in the face of your maintenance issues. Although I would like to know how to true wheels, etc., I hope I don't have to learn by necessity.
Just curious.. how much weight do you plan to lose? 35lb loss is excellent.
I want to get to less than 180. so 20 more lbs. Wonder how many miles that is?
Mavic, shmavic. What brand are the spokes? That's the starting point, if you want to fix spoke breakage: high-quality spokes such as DT Swiss or Wheelsmith. In this situation, consider having the wheel rebuilt by hand using DT Swiss 14-15ga. double-butted spokes, by someone who's decent at building wheels.
Are you saying i did not really need the Mavic new wheel? Just new spokes. If I sink 300 bucks on a wheel will the guy use good spokes? I hate just not knowing stuff.
gosmsgo
08-31-08, 01:11 PM
I want to get to less than 180. so 20 more lbs. Wonder how many miles that is?
About 1750 miles assuming you eat exactly what your body needs if you were not riding and no more. Thats the hard part. Its easy to go ride a century and come back and eat that much food.
Its also hard to diet and ride hard as your body will send you signals that you need to eat more.
Its all about staying strong and ignoring your hunger. Tough to do....thats why most people are so fat.
About 1750 miles assuming you eat exactly what your body needs if you were not riding and no more. Thats the hard part. Its easy to go ride a century and come back and eat that much food.
Its also hard to diet and ride hard as your body will send you signals that you need to eat more.
Its all about staying strong and ignoring your hunger. Tough to do....thats why most people are so fat.
OOOOh you are so right. But also, if I am riding I am not eating. 1750 is probably 100 more spokes too. There I go whining again.:roflmao2:
Thanks for figuring out how many miles, that is motivation.
mechBgon
09-01-08, 12:12 AM
Are you saying i did not really need the Mavic new wheel? Just new spokes. If I sink 300 bucks on a wheel will the guy use good spokes? I hate just not knowing stuff.
Well, I don't know what you had to start with, so I really can't answer that. But if you tell a wheelbuilder what type of spokes you want in your wheel, then you don't have to wonder if you'll get good spokes or not, because you made that choice yourself.
What particular Mavic rim did they sell you, anyway (look at the label)? What kind of hub, and how many spokes?
Regarding weight loss, I'm not an expert in sports physiology, but many people will lose fat best by riding at low intensity, keeping their heart rate down around 50% of their maximum heart rate (or less). At such easy intensity levels, the body can keep up with your energy needs by burning fat, instead of switching to "fast-burning" fuel. You might not feel like you're getting a very good workout at such a low intensity, but you can add some harder days for that purpose. Or maybe ride a long, easy route to work for your fat-burning session, then take a harder, faster ride back home afterwards for your cardiovascular workout.
Sixty Fiver
09-01-08, 12:48 AM
I've had 2 flats in the past 20,000 km and have never broken a spoke... part of that is because I'm a lightweight and the guy who builds and tunes my wheels (me) seems to know what he's doing.
The stock wheel on the Raleigh may have been poorly built and now, after 100's of miles is starting to exhibit problems that may relate to being improperly tensioned or not being adequately stress relieved during their initial build.
Schwalbe Marathons are always a good idea if you are looking for virtually flat proof tyres that will also handle some extreme mileage.
bjtesch
09-01-08, 12:56 AM
I'm about 220 pounds these days. I have 2 different bikes to ride. One of them has wheels that I built myself about 20 years ago, the other one I bought used 17 years ago so I don't know who built those wheels. I have not had a broken spoke on either one.
As for flats, I might have a couple of flats a year, or I might go several years without flats. Its just a matter of luck I guess.
I still dont have my new wheel. I called yesterday and the LBS at first said my hub wasnt in. They told me last week it was. I ordered it in Mid August, I have busted more spokes and take my old wheel in and the wrench just drops everything and fixes it, i am not mad but is it unreasonable to expect a little better service? I am not sure what kind of Mavic it is, I could have sworn i responded to that eairler but must not have. sorry mechbgon, did not mean to be rude I appreciate the advice.
wayne_imhoff
09-06-08, 06:20 AM
I'm suprised somebody didn't suggest having your current wheel respoked. I bought a new bike this spring, rode it about 750 miles and started breaking spokes. My LBS rebuilt the wheel with DT spokes as a warranty fix. Not a single problem 2000 miles later!!!
P.S. I weighed 255 when I bought my bike, now I weigh 220!!! .... the hills are much easier to climb now.:)
I'm suprised somebody didn't suggest having your current wheel respoked. I bought a new bike this spring, rode it about 750 miles and started breaking spokes. My LBS rebuilt the wheel with DT spokes as a warranty fix. Not a single problem 2000 miles later!!!
P.S. I weighed 255 when I bought my bike, now I weigh 220!!! .... the hills are much easier to climb now.:)
I cant get a LBS to do anything. heck I dont bicker on price or anything I just want a dependable wheel and tires. I think I was thinking at least I would have something to ride while I was waiting for a new wheel then get the old one rebuilt. Are there any pre built commuter wheels that I can just buy?
Ok here is what I just went out and picked up. it was not done yet so I waited for an hour and he had a wheel with spokes but nothing else.
I ordered a Mavic open with 36 spokes, gator skin tires, new gears and tube. The idea was if I bust something my wife can throw the other back wheel in the trunck, bring it to me and I can keep riding. This is what the wrench gave me today.
14ga spokes
105 hub
DT swiss R 1.1
red liner
tube
tiagra cassette
ultra gator skin
all for a bit less than $300.
My questions:
Is DT swiss R 1.1 as good a wheel as the Mavic Open, the one he sold me?
What is the difference betweed an ultrega rear hub and a 105?
I am kinda suspicious, but I dont want to be unreasonable. I just dont know.
oh yea, and a bad omen. He put the tire tube and liner on. While we were standing there it popped.
The DT RR 1.1 is a great rim but very light, not a typical commuter rim. The MAVIC Open Pro is also a good rim, light but not as light as the RR 1.1. I would not recommend either for a heavier rider to use on a cummuter.
I use Velox rim tape on all rims. Its only weakness is water, not good for a wheel that gets seriously wet often because the cotton tape retains water. But it's still the best for most riders.
Avoiding flats is not about how fast you can fix a flat. If you want to have fewer flats take whatever time is necessary to figure out exactly what caused the flat, analyze. It is critical to know the position of the hole in the tube. A tube that blows shortly after mounting the tire was most likely damaged by the person mounting the tire, another reason to not get in a rush.
Al
so you think the DT RR 1.1 is a good rim and I probably did not get screwed. I just want to have a little faith in my LBS but switching brands like that kinda made me suspicious. Think I got an ok deal or not?
Well got about 200 miles or more on the old rim before a spoke broke, I felt 3 pop today but I could only find 2 busted. Time to put on the new wheel.
so you think the DT RR 1.1 is a good rim and I probably did not get screwed. I just want to have a little faith in my LBS but switching brands like that kinda made me suspicious. Think I got an ok deal or not?
You don't say how many spokes the hub (and rim) have. Obviously 36 holes is going to be stronger for a commuter. My new training bike has DT Swiss RR 1.1 36 hole rims laced to Dura Ace 7700 hubs. I weigh #260 currently. I did have to take the rear wheel in at 100 miles in order to have the spokes re-tensioned. DT Swiss makes a single eyelet RR 1.1 rim and a slightly heavier double eyelet one that is believe is the exact same weight as the Mavic Open Pro. I've heard tales of the single eyelet rim failing by splitting apart at the spoke holes.
I believe that double eyelet RR 1.1 is perfectly strong and if you wheelbuilder used good spokes in a sensible lacing pattern, you should be able to abuse this wheel quite a bit. If you plan to do heavy potholes, coarse gravel, some dirt roads, etc... I would suggest using 700x25 or better yet 700x28 tires of a durable design if your frame has sufficient clearance. Most people rave about the Continental Gatorskin Ultra tires or the Michelin Krylion Carbon in the 700x25 size.
Could you post a pic of your old wheel? This might help explain the multiple flats and the chronic spoke breakage. Also could you list the individual components in your old wheel? Which hub? How many spoke holes, which rim, which spokes, and which lacing pattern. Which tire, tube and rimstrip were you using?
You don't say how many spokes the hub (and rim) have. Obviously 36 holes is going to be stronger for a commuter. My new training bike has DT Swiss RR 1.1 36 hole rims laced to Dura Ace 7700 hubs. I weigh #260 currently. I did have to take the rear wheel in at 100 miles in order to have the spokes re-tensioned. DT Swiss makes a single eyelet RR 1.1 rim and a slightly heavier double eyelet one that is believe is the exact same weight as the Mavic Open Pro. I've heard tales of the single eyelet rim failing by splitting apart at the spoke holes.
I believe that double eyelet RR 1.1 is perfectly strong and if you wheelbuilder used good spokes in a sensible lacing pattern, you should be able to abuse this wheel quite a bit. If you plan to do heavy potholes, coarse gravel, some dirt roads, etc... I would suggest using 700x25 or better yet 700x28 tires of a durable design if your frame has sufficient clearance. Most people rave about the Continental Gatorskin Ultra tires or the Michelin Krylion Carbon in the 700x25 size.
Could you post a pic of your old wheel? This might help explain the multiple flats and the chronic spoke breakage. Also could you list the individual components in your old wheel? Which hub? How many spoke holes, which rim, which spokes, and which lacing pattern. Which tire, tube and rimstrip were you using?
I will get back with you on that tommrow, I was just getting ready to hit the rack. The new one i know is 36 hole. I am more curious now than anything. I really dont abuse it or anything. Gotta go, the wife just turned out the lights.
Retro Grouch
09-11-08, 07:34 PM
Cloth rim tape like Velox is mandatory in my opinion if you want to avoid problems. Also, make sure the spokes are not loosening up while riding - get yourself a Park tension gauge and learn how to use it.
Velox rim tape. That's what I think too.
You mentioned popped spokes. Then you had the broken spokes replaced - right? That means that your old rim strip had to be removed and replaced. When it was replaced I'm betting that a tiny crescent of spoke hole was left exposed. That's both easy to do and fairly common. If that's the case, it'll cause repeated flats.
If you still have them available, check your old punctured tubes. If I'm right, the puncture holes will be on the inside circumference.
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