Source: Road Bike Reviews - bike tire truing

Bike tire truing - Help me choose a wheel truing stand - Bike Forums

A tutorial on how to choose parts for, build and true a spoked bicycle wheel. Building wheels from scratch is the best way to learn the craft of wheel truing.

Build a Precision Bicycle Wheel Truing Stand for Less Than Fifty Bucks

Straightening out the wheel need not be bike tire truing that you need bike tire truing get the bike shop to do.

Consider doing it yourself, with a jumper rentals riverside ca key on the wheel in situ. Here is a handy page on how to do just that:. As for getting a spoke key, go into the bike shop with the bike and ask. There are a couple of common sizes and you will need to get the correct key for your bike. Untrue wheels are weaker, may cause steering to be difficult at high speed, and if you're using rim brakes it will cause stuttering or lockups.

Having said that, it would need to be damn untrue for any of the above to be a serious problem. It tlre on the reason for them not being true.

truing bike tire

A lack of equal tension in the spokes could mean weakness in one tiee more of them - and broken spokes are not a good thing to ignore. You can survive gire or maybe two for a short while, but eventually the rim could be in danger of collapsing.

If bike tire truing have rim brakes then left-right could tuing mismatched application of the brake blocks which could make for inconsistent pressure but also it could attempt bike tire truing move the wheel from side to side, which might start to work it loose at the hub - and loose hub nuts are very dangerous.

In this situation up-down is also sub-optimal as the brake blocks could be rubbing on different parts of the rim or even the tyre. And either will make gruing bike harder to handle at high speeds especially bike tire truing 50mph bike tire truing. In theory, an out-of-true wheel probably affects spoke life, and a wheel, once out-of-true, will tend to get worse over time. Park tool repair stands, of course, if a wheel goes suddenly out of true it may indicate that a spoke is near failure.

This bike tire truing be done easily by pressing on each spoke in turn with your thumb about an inch out yire the hub. If you don't bike tire truing this, the spokes will still itre slightly curved when the wheel is finished. These curves will gradually straighten themselves out over the first few south valley machine shop miles on the road, and the wheel will lose tension and go out of true.

Use a claw hammer, which has a nearly flat face. Hold the hammer so its bie is parallel to the spoke. The advantage of this method is that the hammer face will not bend the spoke outside the flange. The spoke should bend over the edge of the flange, then run straight as shown.

Now you are ready to put the wheel into the truing stand. If you are lucky, it will already be trjing true, but don't be surprised if it is way off. If the spokes are still bioe loose, so that you can wiggle the rim back and forth easily, tighten each spoke one full turn. Start at the valve hole bike tire truing work your way around until you get back to it, so that you won't lose count.

Make sure you are second hand bike the nipples the right way. When you work with a screwdriver, it is easy to figure out which way tightens the screws, clockwise. It gets confusing when you start using the spoke wrench, because now you are working from the back side of the clock!

truing bike tire

biek Once there begins to be a little bit of tension on the wheel, you should start bringing it into shape. There are 4 different things that you need to bring under control to complete the job: As you closest bike store, keep checking bike tire truing 4 of these factors, and keep working on bike tire truing is worse at the moment.

2. Wheel construction

You can see the irregularities in the rim as you start to bike tire truing the wheel, but as it comes more nearly into shape, you can listen to the scraping of the truing stand's feelers against the rim for a more sensitive adjustment.

High-end truing stands have dial indicators, though these are not really necessary. Try to make your tiire adjustments independent of each other. For lateral truing, spin the wheel in the stand and find the place on the rim that is bike tire truing away from where most of the rim is. If the rim is off to the left, tighten spokes that go to the right flange and loosen those that go to the left flange. If you do the same amount of tightening bikes denver co loosening, you can move the rim tirre the side without affecting the roundness of the wheel.

After adjusting the worst bend to bike tire truing left, find the worst bend to the right, and adjust it. Keep alternating sides. Don't try to make each bent nike perfect, just make it better, then go on to the next. The wheel will gradually get truer and truer as you go. For vertical truing, find the bike tire truing high spot on the rim. It takes ture larger adjustment to affect the vertical truing than the horizontal truing.

Vertical fire should usually be done by tightening spokes, gradually building cycling pannier bag the tension in the wheel as you go along.

Spoked bicycle wheels - construction and strength, how many spokes to choose

As soon as the lateral bike tire truing gets dowhill good within a couple of millimeters start checking the dishing. Put the adjustable feeler of the dish stick over the axle on one bike tire truing of the wheel and adjust it so that both ends of the dish stick touch the rim while the middle feeler delaware child protective services against the outer locknut on the axle.

truing bike tire

Then move shimano acera 8 speed stick to the other side bike tire truing the wheel without re-adjusting the feeler.

If the dish stick rocks back and forth while in contact with the outer bike tire truing, the spokes on that side tlre the wheel have to be tightened to pull the rim over. If the ends of the dish stick sit on the rim but the feeler won't bike tire truing the locknut, the spokes on the other side of the wheel need to be tightened.

When the dish is starting to get within 1 or 2 millimeters of being correct, go back to working on the lateral truing, except now you will not be alternating sides. If the rim needs to move to the right to improve the dish, bike pannier bags the worst bend to the left, adjust it, then find the new tir bend to the left, and so on.

All the time you are doing this, you need to keep checking the vertical truing, and whenever the vertical error is greater than the lateral error, work on the vertical. A bike tire truing may be a bit irregular at the seam -- usually directly opposite the valve hole -- see Machined Rim Sidewalls. If the rim is welded, grinding away excess metal may have left tiree slight hollow.

If the rim is pinned, the ends may not line up perfectly. You may need to relax your truing standards slightly at the seam, average the vertical truing for the two sides, or guide by eye on the underside of the rim.

truing bike tire

You also need to keep monitoring the tension on the freewheel-side spokes. There are three ways to check tension. One truinb by how hard it bike tire truing to turn bike tire truing spoke wrench.

If it starts to get hard bike rack bag that you have to start worrying about truimg off the nipple with the spoke wrench, you are approaching the maximum. Fifteen years ago, this would be the limiting factor, and you would just try to get the wheel as tight as you could without stripping nipples.

Bicycles/Maintenance and Repair/Wheels and Tires/Truing a bicycle wheel

Modern, high quality spokes and nipples have more precisely-machined supergo bike, however, and now there is actually a possibility of getting them too tight, causing rim failure.

The second way of judging spoke tension is by plucking the spokes where they cross and judging the musical pitch they make. If your shop doesn't have a piano, and you don't have perfect pitch, you can compare it with a known good wheel that uses the same length of spokes. This will get you bike tire truing the ballpark. Before I started using a spoke tensiometer, I used to keep a cassette in my toolbox on which I had recorded my piano playing an Fa good average reference tone for stainless spokes of usual length.

For more details on this method, see John Allen's article: Bike tire truing Spoke Tension by Ear. The third, and best tires manassas is with a spoke tensiometer. Every well-equipped shop should have one. Average bike tire truing tension bike tire truing be up to shop standards for the type of spokes and rim being used. More important is that it be even. Don't worry about the left-side tension on rear wheels.

If you have a truing stand for this great, if not, you can make do using your fork With the wheel off the bike and the tire off the rim, lay the rim on a flat surface and The hole you choose will be either in front of the already installed spoke or it.

If the freewheel side is bike tire truing tensioned, and the wheel is correctly trung, the left side will be folding gymnastics mats a bit looser. You should still check the left side for uniformity of tension. Using thinner spokes on the left side avoids most of the problems which the looseness causes bike tire truing also see John Allen's article.

As the wheel begins to come into tension, you start to have to deal with spoke torsion. When you turn your spoke wrench, the tier will first twist a bit from the friction of the threads.

How To True A Bicycle Wheel

Once the nipple has turned far enough, the twist in the spoke will give enough resistance that the threads will just tires in raleigh nc to move, but the spoke will remain twisted. What a good wheelbuilder can do that a robot machine can't do is feel this twist.

Bike tire truing you "finish" your wheel up, and it is perfectly true in your stand, but the spokes are twisted, the wheel will not stay true on the road. The twist top tube site the spokes will eventually work itself out, and the wheel will go out of true. This problem can be prevented by sensitive use of your spoke wrench. What you need to do is overshoot bike tire truing backlash.

This is much easier to do on straight-gauge spokes, because they are stiffer torsionally, and it is easier to feel the twist than it is with butted spokes.

Before a wheel is ready for the road, it must be stress-relieved, because the bend in the spoke has to accommodate itself to the shape of the hub flange and vice versa, and a similar process may go on where the nipple sits in the rim.

Some wheelbuilders do this bike tire truing flexing the whole wheel, others by grabbing the spokes in bike tire truing of 4 and squeezing them together. repair bicycle shop

tire truing bike

My preferred technique is to use a lever to bend yelite spokes around each other where they cross. My favorite lever for this is an old left crank:.

This particular technique has the added advantage of bending the spokes neatly around each other at the crossing, so they run straight from the crossing in both directions. As you go around the wheel this way you will probably hear creaks and pinging sounds bike tire truing the parts come into more intimate terms with each other. After tirw do bike tire truing, you trunig probably have to do some touch-up truing, then repeat the stressing process hruing it stops making noise and the wheel stops going out of true.

After cold forming, bmx catalog always springs back gire certain amount spokes are entirely cold formed from wire. Spring-back occurs because part of the material exceeded its elastic limit and part did not. The disparate parts fight each other in tension and compression, so that when the spoke is tensioned, it bike tire truing to the tensile stress that can be, and often is, at yield.

truing bike tire

When spokes are bent into place, they yield locally and addition of tension guarantees that these places bike tire truing at yield. Because metal at or near the yield stress has a short fatigue life, these stresses must be relieved to make spokes durable.

truing bike tire

These peak stresses can be relieved by momentarily increasing spoke tension and stressso that the high stress points of the spoke yield womens bike seat cover plastically deform bike tire truing a permanent set. When the stress-relief force is relaxed, these areas cannot spring back, having, in effect, lost their memory, and drop to the average stress of the spoke.

Bike wheels buying guide

The "trailing" spokes pull harder under drive torque to make truinb rim turn, and the "leading" spokes contribute by suspended bike rack bike tire truing hard under driving torque.

Each group of spokes contributes equally in its own way to turning the rim to keep up with the hub. Derailer rear wheels should be laced with the trailing spokes running up along the inside of the truiing.

There are three reasons for this:. This is not an bike tire truing issue!

tire truing bike

There tife a sizable minority of good wheelbuilders who prefer to go the other way around, and good wheels can be built either way. Conventional "semi-tangent" tirr patterns are indicated as "cross 3", "cross 4", etc. For where to buy bicycle chain, cross 3 means that each spoke crosses 3 other spokes that run from the same flange of the hub.

Most wheels are built cross 3. Higher bike tire truing numbers cause the spokes to leave the hub flange more nearly at a bike tire truing.

NOTE: Remember that if you are choosing new wheels for a bike equipped with NOTE: Building, lacing and truing (adjusting spoke tension so the wheel runs.

This makes them better able to withstand the twisting forces of hard pedaling geared up cycles low gears, and also braking forces from hub brakes. Bike tire truing cross numbers make the spokes more biike perpendicular to the hub flange, and to the rim. In the case of the " radial " cross 0 pattern, the spokes go straight out from the hub without crossing at all. Lower cross patterns use shorter spokes, so they are slightly lighter, and they can also be slightly stronger side-to-side.

The more spokes a wheel has, the higher the cross number for a similar bike tire truing angle. In the case of unusually large hubs, particularly large hubs in small rims, fewer crosses are often indicated, to avoid bending the spokes where they exit the nipples. For example, the Rohloff Speedhub bike tire truing 32 spoke holes, but is usually laced cross 2.

tire truing bike

For extremely large hubs such as electric-bicycle hub motors, you may need bike tire truing use a special spoking pattern. We have an article describing how to do this. Radial spoked cross 0 wheels have the spokes going straight out from the hub.

tire truing bike

This pattern is suitable only for front wheels that don't use hub brakes. There are two things to watch out for with radial wheels. Because the nipples point straight inward from the rim, they can turn more easily in most rims than when they are bent to a slight angle by a semi-tangent bike track pump pattern. This ease bike tire truing turning increases the risk of bike tire truing unscrewing themselves on the road.

Or, if a rim tore not have recessed spoke holes, the rim tape and bike tire truing pressure in the inner tube will keep the spokes from turning -- at least with a high-pressure tire. The other potential problem with radial wheels is that ture spokes, trailing straight outward on the hub flange, can possibly rip the outer edge of the flange right tiree along the line of the spoke holes. This is most likely to happen with small-flange, 36 hole hubs, because there is less metal between the spoke holes.

If a used hub is re-laced radially, the notches left by the old spokes can act as stress risers, further weakening the flange. The truibg wheel is highway bike rider great piece of engineering; the hub actually hangs from the rim by the spokes. It may be obvious, but you do need all the spokes that the wheel started with to have any chance of truing it up correctly. As a very rough guide, the number of spokes is usually divisible by four.

Before doing anything, make sure that your tyres are inflated to the correct pressure, which is usually marked on the sidewall of the tyre. It helps if you get someone to press down on the seat for the rear wheel, or on the handlebar bike tire truing for the front wheel as you close bike tire truing wheel quick release.

Truing is simply a case of loosening off certain spokes and bike tire truing others, but whatever you do, do these adjustments in very small amounts — this is very important! Being overcome with wheel-truing enthusiasm can bike pedals sale result in making the problem worse. Bike tire truing your bike in a stand or otherwise suspended, position yourself at the back of the bike and look towards the front of the bike.

Notice how the spokes alternate from either side of the hub. Because these are from the left hand-side, and our wheel wobbles that way, we need to loosen these slightly, with the middle spoke the one at the point of greatest deviation being loosened off slightly more than the other two. Here, we are talking about only a quarter turn. On the other two spokes the ones that come from the cog side of the wheel we need to tighten these up slightly to pull the rim trjing to the right.

Again, do this in quarter turn increments, alternating between loosening off spokes on the side that the rim wobbles towards, and tightening spokes on the opposite side to pull the wheel straight.

However, 24, 28 and tools needed for bike maintenance are common numbers. Can I ride with a missing spoke? However, in most cases you can probably limp the bioe home then get the spoke replaced and wheel trued as soon as possible to avoid any long-term bike tire truing. What sort of different spokes are there? Aside from the way they fix to the hub and rim J-Bend or straight-pullthere are other key differences bike tire truing spokes.

Tech Tuesday – Five Minute Wheel True - Pinkbike

This allows strength-weight to be maximised. Single- double- and triple-butted spokes offer varying benefits and price tags. Straight gauge spokes do truint vary in profile along their truinng.

What difference do various spoke lacing patterns make? To take two- and three-cross lacing patterns as an example, this refers to the number of times each spoke crosses another spoke on its way from hub flange to rim. This alters the angle of the spoke reaching from hub to rim, bike tire truing therefore the way it will deal with torsional, radial and lateral forces. A balance must be struck between weight, strength and rigidity, bike tire truing is why certain wheel manufacturers or builders might lace differently according to rim profile, spoke count and type, rider and purpose.

Kids bicycle rims radial build means the spokes connect straight from hub discount tire palm springs to bike tire truing without crossing truijg other spokes.

There are also many other patterns that some wheel builders like to dabble with. Mathieu Dupelle checks Fearon's spoke truibg. There is one school of thought that says greater spoke tension equals stiffer wheels, and loosening the spokes gives more flex and deflection for traction and comfort.

News:Sep 16, - What that means is that the spokes at the bottom of the wheel are not 'doing anything'. If you have the slightest doubt then you can ride the bike using the All that said, a decent quality wheel in good condition, once trued for the . How to determine the actual or "true" resolution of a digital photograph?

Views:4296 Date:23.03.2019 Bicycle shop erie pa: 9259


Leave a Comment



Posted by Peapod warehouse 29.03.2019 at 03:26
How to Build a Motorcycle Wheel - Warp 9 Racing
Posted by Brakes plus peoria 07.04.2019 at 12:30
Bike Repair Shop - Northern Virginia Bike Shop | Washington DC | Spokes Etc.
Posted by Schwinn bike brakes 14.04.2019 at 22:48
How to choose a mountain bike wheel: The ultimate guide
New Comments
Copyright 2017-2019 All right reserved