What is Friction?

Friction [frik-shuh n]
The second law of motion, is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other.[2] There are several types of friction:
Dry friction is a force that opposes the relative lateral motion of two solid surfaces in contact. Dry friction is subdivided into static friction ("stiction") between non-moving surfaces, and kinetic friction between moving surfaces. With the exception of atomic or molecular friction, dry friction generally arises from the interaction of surface features, known as asperities
Fluid friction describes the friction between layers of a viscous fluid that are moving relative to each other.[3][4]
Lubricated friction is a case of fluid friction where a lubricant fluid separates two solid surfaces.[5][6][7]

How to get your suspension to us:

  1. Print off and fill out the suspension service form located under MTB Service at
  2. Remove fork and/or shock from your bike.
  3. Remove any small parts associated with the fork or shock(i.e. brake mount adaptors, shock hardware, etc.)
  4. Zip tie any loose parts with your shock to the end eye’s of the shock.
  5. Wrap your suspension in packaging, such as bubble wrap or plastic wrap, so that it doesn’t get damaged in shipping.

Place fork and/or shock in an appropriately sized box with the label addressed to:

Fast Bike Industries
Service – MTB
211 Duncan Hill Rd.
Hendersonville, NC 28792

Before closing the box up, remember to include a completed service form in the box with your suspension.
Ensure the fork/shock is secure in the box.
Tape box up and send it on its way to Fast Bike Industries.
We will contact you once the service is completed within 48 hours of receiving your suspension so you can be back on your bike for the weekend!

Why do I need my suspension serviced? It works just fine…
Suspension is something that a lot of us feel estranged to because we all see what it does, generally know what’s happening when we ride it, and that it feels awesome because it gives us the ability to ride the trails the way we do – but we don’t know exactly what’s going on inside that causes it to feel that much better or feel that much worse. Your fork and shock should feel buttery smooth and have as little stiction as possible.
Riding mountain bikes is an inherently abusive sport for your equipment. Lets face it, your bike does a lot of dirty work that your body would otherwise have to endure so that you can have as much fun as humanly possible while riding. In that process you are riding through the woods where you kick up and pick up debris from dirt, sand, mud, and rock which then hangs around the only opening into your fork – the seals. The fork functioning properly, sliding up and down, lets in very small amounts of dirt and dust when its dry, even more when its wet. On top of this, the oil inside your fork degrades over time with the effects of heat from use as well as how long it has been used. The degradation of the oil in your fork causes the seals to wear faster and is harder on all the moving parts & smooth surfaces inside your fork. The result is a fork/shock that doesn’t have the same small bump sensitivity and damping feel and that shows itself in the form of resistance.
Most major suspension manufacturers, including Fox & Rock Shox, recommend that a fork have a general maintenance, just changing the lubricating oil in the lowers, replenished every 50 or so hours.

How do I pack up my fork or shock? Whats appropriate?

Packing up your fork or shock seems pretty intuitive, right? You want to be sure you are properly packaging your expensive equipment to ensure its safe arrival both to us and back to you after the service has been performed.

  1. Remove any small parts associated with fork and/or shock.
  2. Carefully wrap your fork legs, crown and steerer tube in a padded material, such as bubble wrap.
  3. Secure the packaging to your fork/shock using masking tape or something similar so there is no glue/tape residue on your fork, which can be difficult to get off.
  4. Be sure that any sharp edges or blunt points are well padded so they cannot protrude through the box in shipping. (example – top of steerer tube with no padding and not securely packaged)
  5. Place fork/shock in box with enough packaging material so that it cannot bounce around inside while being shipped.

Average Box Dimensions:
36” in length x 12” wide x 6” tall fits most forks.
42” in length x 12” wide x 6” tall fits most DH forks
8” x 4” x 4” fits most MTB rear shocks