what is lawyer lips

Lawyer lips or lawyer tabs (a type of positive retention device), a nineteenth century invention, are tabs fitted to the fork ends on the front fork of bicycles sold in some countries (particularly the U.S.) to prevent a wheel from leaving the fork if the quick release skewer comes undone.

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Are Lawyer lips more important than they originally were?

May 13, 2008 · Lips attached to male lawyers, or possibly even law students, which are the focus of attention among certain groups of females. These lips are often quite shapely and sexually alluring, although no scientific relationship therein has been established. Women who express interest in these lips are quite well aware of the other key aspect of lawyer lips, which is that …

Why do lawyers have extra bumps on their lips?

Jan 23, 2006 · Lawyer Lips, Lawyer Tabs Because some bicycle users are competent enough to remove their front wheels but not competent enough to secure them properly when they reinstall them, virtually all new bike purchasers have been deprived of the handy function of …

What is a lawyer lip on a bicycle fork?

Mar 27, 2012 · This entry was posted in Racing on March 27, 2012 by Steve Tilford . I was reading the other day about the UCI making it illegal for Professional teams to be competing in events without the “lawyer lips” on the forks of their bikes. I’m not even sure where to begin with this. For one, doesn’t the UCI have better things to do that try to ...

What is a frame dropout?

A bicycle dropout (drop out, frame end, or fork end), is a slot in a frame or fork where the axle of the wheel is attached. On bicycles that do not have a derailleur or other chain tensioning device, rear horizontal dropouts allow adjustment of chain tension, and can accommodate a range of chain lengths or cog sizes.

What is a thru axle?

A thru-axle (TA) is a wheel attachment system that secures a wheel on a hub between a pair of dropouts on a bicycle frame or fork. The thru-axle threads directly through the fork/frame holes and into the wheel hub, which makes the wheel secure from detaching.Mar 7, 2020

Why do Track bikes have horizontal dropouts?

Horizontal dropouts allow the rider to slide the rear wheel forward and back. As a consequence, it's possible to increase or decrease the chain tension by changing the wheel's position. This makes horizontal dropouts a necessity for bicycles with one gear because those do not have a derailleur to tension the chain.

How is rear dropout spacing measured?

Frame spacing is the inside distance between the two fork ends (drop outs), where the wheel fits in. This can easily be measured just by removing the wheel and holding a ruler up to the space where the wheel came out.

What is a skewer on a bike?

A quick release skewer is a mechanism for attaching a wheel to a bicycle. It consists of a rod threaded on one end and with a lever operated cam assembly on the other.

What is 15mm thru axle?

15mm thru axle uses a different connection on the fork where the axle of the wheel allows a 15mm bolt to go through it. Same concept for a 20mm thru axle. Some wheel manufacturers have adapters that allow you to use the same wheel with the different fork hub standards by swapping out the axle ends.Jan 22, 2014

What are dropouts on bikes?

A dropout is a type of fork end that allows the rear wheel to be removed without first derailing the chain.

What are vertical dropouts?

Vertical dropouts have a vertical notch for the axle to go up into, and the axle's position is not adjustable. With vertical dropouts, the axle cannot be pulled out of position, even if it is not properly secured.

How many axles are in a dropout?

"Typical quick-release axles are 11 or 12 mm longer than the spacing of the hub locknuts. This gives 5.5-6 mm of axle protrusion on each side. You don't actually need nearly this much, so for respacing hubs to wider spacing, if you're not adding more than, say, 5-6 mm of spacers, you don't need a new axle.Dec 29, 2009

What is the hub on a bike?

The hub is the central part of your bike's wheels (front and rear), which connects to the wheel's rim via the spokes and through which the axle is fitted, enabling the wheel to freely spin on two sets of bearings. Our best bike hubs buying guide is the place to find out more!3 days ago

What is a headset on a bike?

The headset is the interface between the fork to the bike frame, holding it securely in place while allowing it to rotate to steer. While the interface requires lateral stiffness to withstand riding loads, including cornering, braking and potholes, it also needs to be rotationally free for steering.Jul 23, 2020

What does L.F. mean on a bar-con shifter?

L.F. Large- Flange or Low-Flange (hub). This is a source of confusion, since these two meanings are opposite.

What is a Laprade saddle?

Laprade was originally a brand name, but has become a generic term for seatposts with a built-in clamp that uses a vertical Allen bolt to clamp the saddle rails. Typically,, the tilt of the saddle is adjustable by loosening this same bolt so the convex, toothed underside of saddle-clamp assembly can be slid backward or forward on a matching, concave, toothed surface. This type of seatpost is much easier to adjust than the classic Campagnolo two-bolt seatpost, but can be adjusted only in (small) steps.

How does a derailer work?

Modern derailers are spring loaded, pulled one way by the spring and the other way by the control cable. A "low-normal" derailer is one in which the spring pulls it toward the lower gear (s). If you release the tension on the cable, it will shift to the lowest gear.

What is a sharp edge on a washer?

A washer with directional sharp edges to make a nut or bolt less likely to loosen up due to vibration. The edges are angled to work sort of like pawls, permitting the fastener to be tightened without undue friction, but biting into the fastener and/or surface of the part when the fastener tries to rotate in the loosening direction.

What is lateral stay?

Lateral Stays. Thin tubes that run in pairs alongside the front part of a frame, and typically extend past the seat tube to the rear fork ends. These are most commonly seen on mixte frames and on older tandems, although they are also used on a few large-sized diamond frames intended for heavy-duty use.

What are the advantages of diamond frames?

They are: Lighter. Stiffer. Stronger. Easier to pick up and carry over stairs, etc. Roomier, to mount useful accessories: bottles, pumps, locks, etc. See also " mixte. ".

Why can't contaminants enter a bearing?

Contaminants can't easily enter the bearing because the baffles of the labyrinth seal deprive them of a straight route inward.

Why do bicycles have lawyer lips?

Lawyer lips or lawyer tabs (a type of positive retention device ), a nineteenth century invention, are tabs fitted to the fork ends on the front fork of bicycles sold in some countries (particularly the U.S.) to prevent a wheel from leaving the fork if the quick release skewer comes undone. They were reintroduced in response to lawsuits supported by experts including John Howard, in cases where incorrectly adjusted quick release wheels came out of the forks. Lawyer tabs are designed to compensate for the fact that many riders do not know how to operate a quick release properly: some riders treat them as a folding wing nut, and others do not tighten them enough for fear of snapping them or shearing the skewer (both are not likely given the normal range of human strength, and the mechanical advantages involved, as long as the skewer is not damaged or flawed).

What happens if the rear derailleur hanger is out of alignment?

If it is out of alignment, the rear derailleur will not move far enough, with respect to the rear sprockets, with each click.

What is a fork end?

Fork end. A fork end, fork-end, or forkend is a slot in a bicycle frame or bicycle fork where the axle of a bicycle wheel is attached. A dropout is a type of fork end that allows the rear wheel to be removed without first derailing the chain. Track bicycle frames have track fork ends, on which the opening faces rearwards.

Why do chaintugs tighten the bolts on the forks?

Tightening the bolts on each side causes the axle to be pulled backwards towards the open fork end , tensing the chain. Chaintugs can also solve the problem of "axle creep" on hard-ridden fixed-gear bicycles, especially those with hard chromed fork ends, which may not offer adequate grip for the serrated track nuts.

What is a silver bike hanger?

The silver part is the replaceable derailleur hanger. Replaceable derailleur hanger. The derailleur hanger or mech hanger is the part of the dropout that the rear derailleur attaches to. Most non-steel framed bikes have a separate removable derailleur hanger, generally made from aluminium which is bolted to the dropout.

How does a chaintug work?

These may be integral to the fork end or separate items. They work by holding the rear axle in an eye at the end of a threaded bolt. The bolt passes through a cap which fits over the open fork end.

Can a derailleur be fitted to a separate hanger?

Since a derailleur designed to be fitted to a separate hanger will be aligned lower on the bike than one that bolts directly onto the frame, it follows that a derailleur must be selected firstly with the mounting method in mind.