Starting at the hub in the center of the wheel, spokes radiate outward to the rim, where they attach to nipples, which are like little nuts that screw onto the spoke ends. Turning the nipple increases or decreases the tension of the spoke and also pulls the rim slightly to the left or right.
How does the bicycle spokes work?
Spokes are the connecting rods between the bicycle hub and the rim. Their main purpose is to transfer the loads between the hub and the rim, which are caused by the weight of the rider and the bike. … The lacing of the spoke is most commonly tangentially attached.
Why do spokes not buckle?
While it’s easy to believe a bicycle spoke would simply collapse under the weight of bike and rider, he goes on to explain that the tension created in a spoke during the wheel building process (called ‘pre-tension’) is what allows the lower spokes to bear the load without buckling, as they would if there was no pre- …
Do bike spokes make a difference?
In general terms, the more spokes a wheel has, the more the load is spread and the stronger the wheel should be. Conversely, less spokes means a lighter wheel, so a wheelbuilder must strike a balance between desired strength and light weight.
Why do bicycles have spokes?
Spokes are used in bicycle wheels because they increase the moment of inertia of the wheels. When the wheels experience any opposition in the uniform rotational motion, by increasing the moment of inertia, a steady and smooth motion can be seen in the bicycle.
Are bicycle spokes under tension or compression?
On a bicycle wheel, the spokes are thin pieces of wire. They can’t support (very much) compression, without buckling and collapsing. They can however support lots of tension (stretching). Bicycle wheels are built to take advantage of tension rather than compression.
Do spokes matter?
The spokes play a large part in determining the overall weight and strength of a wheel. … In truth, the number of spokes a wheel has barely makes any difference really. The impact on the wheel’s weight, strength and aerodynamic performance will be minimal at best.
Can you mix spokes on a bicycle wheel?
As long as all the new spokes are traveling in the same direction, I think they will balance out fine.
How are bike spokes so strong?
Rather, the rim is evenly pulled inward by the spokes, which are laced through the hub, the center part of the wheel that rotates around the axle. Tension between the hub and rim is applied evenly in all directions, making the assembly extraordinarily strong and also somewhat flexible and resistant to shock.
How do I know what spokes I need?
The measurements and information you need to determine spoke length are:
- The number of spoke holes in the hub and rim.
- The effective rim diameter, called the “ERD”
- Hub flange diameter at the spoke holes, also known as the Spoke Pitch Diameter.
- Left and right hub flange spacing relative to the hub center.
What are the strongest bicycle spokes?
UHMWP is the strongest material on the planet on a per-weight basis. Its popularity stems from its extremely light weight and famous resistance to abrasion, impact, corrosion, and UV damage.
What would happen if wheels of your cycle had no spokes?
If there was solid mass there instead of spokes, the moment of inertia of the wheel would be larger and it would be difficult to accelerate the cycle from rest. Similarly, it would also be difficult to bring it to stop.
How many spokes should a bike wheel have?
Conventional metallic bicycle wheels for single rider bikes commonly have 24, 28, 32 or 36 spokes, while wheels on tandems have as many as 40 or 48 spokes to support the weight of an additional rider. BMX bikes commonly have 36 or 48 spoke wheels.
Do more spokes make a wheel stronger?
A bike wheel with more spokes is stronger than a bike wheel with fewer spokes. What’s more, different spokes offer differing levels of strength and durability. Spokes are the individual pieces that hold together a bicycle wheel to create the structure needed to support the weight of your bicycle and rider.