Frequent question: How does mountain bike rear suspension work?

Independent of its purpose, rear suspension always works by the same principle; a spring suspends the rider while a damper absorbs energy coming from impacts on the rear wheel. Designers and engineers have created different suspension designs over the past decades, all with different riding characteristics.

How does mountain bike suspension work?

All mountain bike suspension, whether fork or rear shock have 2 main functions which are performed by the spring and the damper. The spring primarily provides resistance while the damper provides the control of that resistance. There are two types of springs: air and coil.

Why do mountain bikes have rear suspension?

This can help reduce fatigue, which in turn can allow you to ride faster, for longer, with greater comfort. You have a need for speed: Front and rear suspension do such a good job of absorbing bumps that you can typically carry more speed through technical sections of trail than you would be able to with a hardtail.

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How do rear shocks work?

Rear shocks consist of two telescopic tubes which slide into each other, a spring of some type and an eye at either end through which the whole mechanism is affixed to the frame. A small bushing (a type of simple bearing) in each eye enables the shock to pivot smoothly when the suspension is active.

Can you lock out rear suspension mountain bike?

No, the rear “lockout” just changes the low-speed compression, so it takes more low speed force to dive through the travel. It will never fully be locked out, but depending on the suspension design and shock setup, it can pretty much be for the most part.

Do you need suspension on a mountain bike?

Most mountain bikes have suspension to keep you in control over rough ground, but not all mountain bikers need the same amount and type of suspension. Hardtail mountain bikes do not feature a rear shock, whereas full suspension bikes feature front and rear shocks.

Are Hardtails faster than full suspension?

The hardtail was a winner on the rooty lap, being faster for less effort. But the results were more confusing on the rough lap. The full suspension was quicker on the descent for less power, but required more power to maintain the same speed pretty much everywhere else on the course, particularly going uphill.

Can you ride a full suspension mountain bike on the road?

SUSPENSION. Mountain bikes are built to absorb impact from rocks, roots and the terrain. Most mountain bikes today have suspension that is amazing off-road but unnecessary if you are riding on the road. If you have a lockout, an easy adjustment is to use it on your road rides.

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Is 15kg heavy for a mountain bike?

Just how heavy are mountain bikes? The average modern mountain bike weighs 29 pounds (13.2 kg). For most riders, a heavier bike will not negatively impact their mountain biking experience. However, it can be important for cross-country racers or those wanting to maximize pedal performance.

How much does it cost to replace rear shocks?

On average, replacing rear shocks is going to run you somewhere between $1,000 and $1,130. And there is very little wiggle room for those looking for a deal. The parts associated with rear shock replacement come in at right around $900 and make up the bulk of the rear shock replacement cost.

What are 4 symptoms of bad or failing suspension springs?

What are the signs of bad suspension springs?

  • Vehicle bottoming out. One of the best indicators of worn out springs is if the vehicle bottoms out while driving over dips or negotiating obstacles on the road. …
  • Excessive road noise. …
  • Vehicle leaning to one side. …
  • Tyre damage. …
  • Vehicle bouncing.


When should I lock my mountain bike suspension?

If you don’t need the suspension, it’s going to be much more efficient to be able to disable it. If you know that you’re never (or close to never) going to be riding the bike on paved surfaces then you probably won’t need the lockout, but if that’s not the case, then you almost certainly should favour the lockout.

Is it bad to ride with suspension locked out?

The probability of you damaging a locked out fork or shock, or doing damage to the frame or suspension components on pavement is very slim. I’ve done a few long rides on pavement with an FS as well. The only time I’ve really found a lock out (front or rear) to make much difference is on long steep granny ring climbs.

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How does a suspension lockout work?

When a fork is locked out, that port is closed, preventing the fluid from flowing. If a fork is low on oil, on the damper side, there can be air between the damper and the oil. You will be able to compress the air, and the fork will still travel when locked out.