How to measure 5 bolt patterns on rim?

A 5 bolt rim has five equally spaced teeth around the circumference of the rim. These teeth are located in the area where the lip of the rim connects to the body of the rim. Sometimes a 5 bolt rim has a raised lip which increases the contact surface area with the spokes. A 5 bolt rim may also have an increased width to accommodate the wider spoke nipples. This gives the rim a deeper dish and allows the rim to better withstand road vibrations.

How to check barrel twist on a rimfire?

Another way to check if the rim has been installed correctly is to check the barrel twist. With rimlocks the barrel twist is set by the rim width. The more the rim is threaded, the greater the barrel twist. If the rim is tightly threaded, it will require a thicker wall to allow for the lockring and will have a tighter barrel twist.

How to check barrel twist on rimfire rifles?

In order to know if your rimfire rifle barrel is properly twist, you can use a rimfire twist gauge to determine which cut point is at the widest point on the barrel. This is an important measurement because if it is too wide, your cartridge may not feed properly. Using a rimfire twist gauge is easy enough, all you need to do is place the gauge on the barrel, spin the gauge until the indicator line matches the cut point, then mark the cut point on the barrel.

How to check 5 bolt pattern on rim?

It is possible to check the bolt pattern on a rim without removing it from the bike. Simply find a spot on the rim where the spoke holes are visible, clamp onto the spoke nipples and spin the rim. If the spoke holes in the rim align with the spoke hole openings on the spoke nipples, the bike has a 5-bolt rim. If the spoke holes aren’t aligned with the spoke hole openings, the rim is most likely a 6-bolt rim.

How to measure 5 bolt pattern?

If you do not have a tape measure at hand, then you can use a piece of string to measure the width of the rim at the 5 bolt hole location. Measure the shortest distance from one side of the hole to the other, making sure to account for the sides of the hole, and then add the length of the bolt shank. This should be the actual width of the rim at the bolt hole location.