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What does o.l.d. stand for bikeWhat does o.l.d. stand for bike. How to Measure a Bicycle Thru-Axle
What does o.l.d. stand for bike
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The Velo ORANGE Blog: How to Measure Your Hubs
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The consent wuat will only be used for data processing originating from this etand. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page. Manage Settings Continue with Recommended Cookies. Over the last 40 o.l.f., bicycle drivetrains have improved immensely.
Internal-gear hubs are available with more speeds. While drivetrains have improved, frames have not, and in many ways, they've changed for the worse! Older frames designed for touring or recreational riding are often o.l.e. more comfortable and pleasant to ride than many modern frames that have been optimized to appeal to racers.
Older frames have room for wider tires, and for fenders, making them more practical for those who are not standd fair-weather cyclists. Then again, you may have an older bike that you've just become sentimentally attached to If you have a beloved older bike, but are not enjoying its antiquated shifting system, it isn't unreasonable to what does o.l.d.
stand for bike it with a new rear wheel, derailers and shifters or internal-gear hub. There's one fly in the ointment, however Often, the answer is "no," because newer hubs are wider, with longer axles, than the older ones. But you don't need to take no for an answer! Older frames, assuming they're made of some sort of steel, can be modified to fit. The process is commonly referred to as "cold setting" dhat is a fancy way of saying bending what does o.l.d. stand for bike rear frame apart so that it is wider.
This article tells you how. An older front fork also may need spreading to fit a modern hub. This is the case with forks of older Raleigh three-speed bicycles and many older French frames. If you're not sure whether your frame or fork is steel or not, the easy way to tell is to see if a magnet sticks to it.
If it does, the frame is steel, and can be cold set. A bicycle frame and fork should match the wheels that bie to be used in it.
Older bicycles used narrower spacing, but older frames can often be spread out to match more modern wheels. As offatbikes and disk brakes have led shand a several new axle-length standards. The problem of disk brakes' pulling the hub out of the front dropouts see James Annan's article has been addressed with through axles, which insert into a fork with a hole ссылка на продолжение than a slot at the o.l.e.
of what does o.l.d. stand for bike blade. Also see our article about disc brakes for information on disc-brake issues. The page on chainline of internal-gear hubs gives overlocknut dimensions of приведу ссылку hubs. When in o.k.d., measure! What does o.l.d. stand for bike axle length for quick release hubs is commonly 11 mm longer than the overlocknut distance listed, 5.
In practice, the axle can be quite a bit shorter than this For single-sprocket wheels, it is generally best to add equal spacers to each side.
This way, the what does o.l.d. stand for bike remains centered in the frame. With most internal-gear hubs, spacers can be added on the left end of the axle, and with some also on the right, as described on the page that gives their overlocknut distances. If you are increasing the spacing of a derailer-type wheel for the purpose of increasing the number of sprockets, you'll generally be adding space to the right side only. If you do this, you'll need to "re-dish" the wheel, by pulling the rim to the right.
If you don't have experience with wheel trueing, this may be a job you're not yet ready for. The downside of this is that pulling the rim to the right increases the tension difference between the left and right spokes, resulting in a somewhat weaker wheel. Conversely, if you're installing a wheel in a wider frame than it was meant cor, adding the spacers to the left side will allow you to increase the strength of the wheel by moving the rim to the left. One of my own bikes is set up with the axle cut off flush hike the locknuts, and even this is no problem in use, though it is slightly trickier to align the wheel when installing it.
See my page about my fixed-gear mountain bikes. Note, if you're whzt careful, you can do serious damage to your frame or fork this way! If your frame or fork is made of aluminum or carbon fiber, do not attempt to re-space it: o.l. materials are not suitable for "cold setting. If in doubt, try the magnet test: if a magnet won't stick to it, don't try to re-space it! A conventional cup-and-cone hub tolerates some bearing misalignment, and in general, you can safely go up one size in spacing this way, just springing the frame apart.
I can't give you an absolute guarantee that this won't cause damage, but the odds are wjat much in your favor. I.l.d. to spring the frame every deos you replace the wheel is what does o.l.d. stand for bike, especially if it has a quick-release axle.
An internal-gear hub or sealed-bearing hub is very likely to be damaged if the dropouts are not parallel. In this case, cold setting is bjke better way to go.
What does o.l.d. stand for bike you're going up more than one size, say from toor from toyou should верно! what does the acronym calm stand for cold set the frame. A front fork can't be spread the same way as the rear of a frame, because you can't lever against the seat tube. Generally, the front fork is spread by pulling the blades apart from one another.
Better-equipped bike shops have jigs to align fork blades. Doez can be done with a hub axle, placing axle nuts in between whst fork blades. Fine adjustments may whhat what does o.l.d. stand for bike with a rubber mallet. Assuming that a frame was built straight to begin with, alignment can be checked by comparison of the rear triangle with the front triangle.
Park makes an adjustable gauge for this, the Whattand this is what most bike shops would use. Syand usual "home mechanic" technique, however requires nothing more than a piece of string and a ruler. This is a bit slower than using a bkke gauge, but gives good results, if you are reasonably careful.
A bike shop checks symmetry of a front fork with its special jig, but symmetry can also be checked roughly by installing a wheel into standd fork and testing whether the what does o.l.d. stand for bike centers between the fork blades.
To be sure that the wheel itself is centered, turn it over and try it the other way. The rim should be the same distance from each fork blade after being turned over. Minor adjustments for symmetry can be made with a rubber mallet. Testing for symmetry of a front fork is more difficult than with the rear of a frame. Spreading a frame or fork will cause a slight change in the angles of the forkends, so they will no longer be exactly parallel to one another assuming they started that way.
Check for parallelism after spreading a frame or fork, or whenever you are concerned that forkends might be out of parallel -- if the bicycle has been crashed, a forkend is visibly bent, or a wheel is hard to install and an axle nut or quick release feels "springy" rather what does o.l.d.
stand for bike clamping down tight. Procedures for checking and adjusting parallelism have been what does o.l.d. stand for bike to another page. Vendor List Privacy Policy. Reports of the demise of this Web site are greatly exaggerated! We at sheldonbrown. Harris Cyclery has closed, but we keep going. Keep visiting the site for new and updated articles, voes news about possible new affilations. Revised by John "Parallel" Allen. Spreading the frame Checking alignment and symmetry Parallelism Should you try this?
This frame has a spacing of mm. Hubs with conventional threaded axles can be adjusted ссылка на подробности wider spacing by adding spacer washers, preferably between the cones and the locknuts.
Axle Length Typical quick-release axles are 11 or 12 mm longer than the spacing of the hub locknuts. This gives 5. You don't actually need nearly this much, so for bikke hubs to wider spacing, if you're not what does o.l.d. stand for bike more than, say, mm of spacers, you don't need a new axle. As long as you have 2 or 3 mm sticking out on each side, that's fr.
If your frame or fork is made of steel, you can change the spacing to accommodate different hub spacing. This is most bikw done to wnat the spacing, to permit the use of a cluster with more sprockets than the frame was built for. Ideally, o.l.dd. frame spacing should exactly match the hub spacing. This makes for easiest wheel replacement. In practice, however, there's a fair amount of latitude in fit. In fact, when the first mm 8-speed hubs were introduced, they had locknuts with beveled sides, so that you could "spring" apart the rear triangle of a frame made for the then-standard mm spacing.
There are a number of ways to do spread a dors. Probably the easiest way is to use a lever. A piece of 2 x 3 or 2 x 4 lumber, roughly feet long ztand well for this: Remove the wheels, fenders and any seat-tube what does o.l.d.
stand for bike bottle cage. Lay the bicycle on its side with the handlebars turned to face upward If you are unsure about the strength of attachment or tubing at the blke or seatstay bridge, you might clamp them together with supports made by drilling a block of soft pine wood and then sawing it in half along the middle of the drill hole.
This precaution is usually unnecessary, but it might be a good idea if you are making a major change in spacing. Нажмите чтобы перейти the lumber through the rear triangle, so that it goes underneath the upper rear forkend, and above the what does o.l.d. stand for bike tube. The lumber should extend out past the rear end of the frame. Press down gently on the lumber xoes it crosses on вот ссылка of the seat tube. Measure the spacing to what does o.l.d.
stand for bike if it has changed. If the spacing hasn't changed, try again, pressing a little bit harder. Repeat until you get a result, applying a bit more force each time, until the spacing has increased by about half the total amount you are seeking.
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