Aerospace Cycling

All answers for Motorcycle



Question: What Causes Motorcycle Head Shake

It is true that the cause of head shake can be suspension that is too stiff, suspension that is too soft, a chassis setup that is too high in the front, a chassis setup that is too low in the front, a chassis setup that is too low in the rear or a chassis setup that is too high in the rear.

What causes a motorcycle to shake?

Wheel bearings — If the bearings get worn out, this could cause lateral axle movement which leads to wobbling. Lateral axle movement — When the front or back wheel has excessive side to side or lateral axle movement, the bike will wobble. The issue could stem from worn wheel bearings or another problem.

Why does the front end of my motorcycle shake?

The death wobble is a shimmying, shaking or oscillation that occurs when a mechanical or rider induced irregularity occurs with the front tire or steering component(s) of the motorcycle. This causes the front of the motorcycle to shake from side to side violently.

What is death wobble on motorcycle?

The “Death Wobble” is a phenomenon where a bike’s rear kicks back and forth and is brought about by something mechanical or by the rider where it affects the front tire or steering components of the motorcycle.

What does death wobble feel like?

When death wobble occurs, you will feel a shaking in the steering wheel, which will increase or decrease with speed, and depending on severity, shaking throughout the cab.

How do I know if my motorcycle alignment is off?

A slight ache as you compensated for the rear wheel trying to turn the bike. Its ever so slight but after a ride you can feel a slight ache. Also lift the back wheel up on a stand and hang weighted string from the subframe or pillion handles and spin the back wheel. You’ll know by sight if its off slightly then.

Do I need to balance motorcycle tires?

Do you have to balance a motorcycle tire? Motorcycle tires should be balanced at all times to keep drivers safe. A set of unbalance wheel will affect the motorcycle’s performance and might lead to an accident when neglected. Keeping your motorcycle tires balanced will also help keep them longer.

Which Harleys are prone to death wobble?

And according to at least one source, the issues are strictly with pre-2008 models. The Harley-Davidson models that are reported to be most affected by this alleged design defect include the Road King, Ultra Classic, the Electra Glide and FLH series — basically, Harley-Davidson’s big touring models, or “baggers.”May 17, 2011.

How do you prevent death wobble?

Maintain Proper Tire Pressure: Common triggers for the death wobble include over-inflated, under-inflated, or mismatched tire pressures. To prevent the death wobble from occurring, you should make sure to check your tire pressure regularly and deflate or inflate your tires as necessary.

How does tank slap happen?

Most tank slappers happen when the front wheel breaks traction, becomes airborne or somehow leaves the track of the rear wheel, causing the frightening chain reaction. When the front wheel leaves the track of the rear wheel the front forks pull hard to get back in line.

How do I get out of the death wobble?

Slow down immediately and, if possible, pull off to the side of the road. Brake calipers will help slow down the death wobble too. Inspect your vehicle for any parts that are ready to fall off – tie rod ends, track bar, etc. You’re trying to determine if you can drive the vehicle home.

How does rake affect motorcycle handling?

The bottom line here is that the more rake and trail we have, the more stable the bike will become, although both steering and maneuverability may suffer for it. Conversely, when rake and trail are reduced, the bike will steer quicker and become more maneuverable, though it’s usually at the expense of stability.

Can bad alignment cause wobble?

Misaligned wheels can cause tire wobbles—especially in front tires. Sometimes wheels slowly move out of alignment with use. But sometimes, an event, such as slipping into a curb on an icy road, may immediately knock your alignment out of whack. Alignment problems will cause irregular tire wear, increasing wobbles.

Can death wobble be fixed?

Something as simple as a tire’s misaligned camber or toe could cause enough vibration to trigger the wobble again. One thing many people do is install a new steering stabilizer, but this is not a permanent fix. Jeep steering stabilizers can temporarily get rid of death wobble, therefore masking a more serious problem.

Can bad alignment cause death wobble?

It is important to reiterate that no one problem causes death wobble, but rather any combination of factors, which can include tire balance, loose hardware, worn components, and/or bad alignment. All of these issues can conspire together to create a domino effect that could ultimately lead to death wobble.

Do bikes need wheel alignment?

If after several rotations, the distance between the gaps remain constant, then your bike has perfect wheel alignment, else it needs to be aligned properly.

Do balancing beads work in motorcycle tires?

The same principles apply to motorcycles. If you’re looking for ways to make your motorcycle run smoother and quieter, balancing beads for motorcycle tires are the way to go. With balancing beads, your motorcycle will roll smoothly with minimal wear down on the rubber.

What is the best way to balance a motorcycle tire?

How To Balance a Motorcycle Tire by Yourself Mount your motorcycle wheel on the wheel balancer. Make sure your static balancer is sitting nice and level. Check the wheel balance and mark the lighter side. Add counterweights to the lighter side of the wheel. Recheck the wheel balance after adding the counterweights.

Why does my Harley wobble at high speeds?

High-speed wobble occurs when the physical forces being placed on your bike by speed are too great for the bike to handle. Sometimes, but not always, this is initiated when cornering because it is then that greater stress is being placed on the chassis.

Do Harleys get speed wobbles?

Harley-Davidson does acknowledge that its bikes are susceptible to a weave or wobble — depending on the bike’s speed. But they said that this does not cause accidents, and that weave or wobble happens to other bike manufacturers, regardless if it is a Harley or not.