Complete Guide to Fox Suspension Parts: Forks, Shocks, and Components

Fox suspension components are a common choice for riders looking to improve performance on mountain bikes, motorcycles, and off-road vehicles. Whether you need a replacement fork, a shock upgrade, or service parts, understanding what Fox offers and how to pick the right parts can save you time and money.

Types of Fox Suspension Parts

Fox manufactures a wide range of suspension components. The main categories are forks, shocks, and service parts. Each category includes several models designed for specific riding styles and vehicle types.

Fox Forks

Fox forks are most popular among mountain bikers, but the brand also produces forks for motorcycles and utility vehicles. For mountain bikes, Fox offers air and coil sprung models.

Air Forks

Air forks are lightweight and adjustable. The most common models are the 32, 34, 36, 38, and 40 series. The number indicates the stanchion diameter in millimeters:

• Fox 32: Lightweight, suitable for cross-country.
• Fox 34: Trail riding, balance of weight and stiffness.
• Fox 36: Enduro and aggressive trail, stiffer.
• Fox 38: Longer travel, for heavy-duty enduro.
• Fox 40: Downhill, maximum stiffness and travel.

All Fox air forks use the Float EVOL air spring system, which provides a plush initial stroke and good mid-stroke support. They feature adjustable compression and rebound damping via knobs on the top and bottom of the legs.

Coil Forks

Fox also offers coil sprung forks, primarily the 36 and 38 series. Coil forks offer consistent performance, no air pressure to manage, and are often preferred by riders who want a linear feel. They are heavier than air forks but require less maintenance over time.

Fox Shocks

Fox shocks are used on mountain bikes and off-road vehicles. Mountain bike shocks come in air (Float) and coil (DHX) versions.

Air Shocks (Float)

Fox Float shocks use air pressure for the spring and are highly adjustable. Models include:

• Float DPS: Trail and cross-country, three-position lever (open, medium, firm).
• Float X2: Enduro and downhill, with high/low speed compression and rebound adjustment.
• Float X: Similar to X2 but with less adjustment range.

Coil Shocks (DHX)

Fox DHX shocks use a steel coil spring. They offer a smooth, linear feel and are favored for gravity disciplines. The DHX2 model allows full adjustment of high and low speed compression and rebound. The DHX is a simpler, more affordable option.

Vehicle Shocks

Fox also produces shocks for trucks, SUVs, and UTVs. These include the 2.0, 2.5, and 3.0 series with reservoir or piggyback designs. They are used for lifted trucks, off-road racing, and overlanding. Fox vehicle shocks are valued for their performance and durability.

Service and Replacement Parts

Fox suspension requires regular maintenance. Common service parts include:

• Seals and wipers: Keep dirt out. Fox offers standard and SKF low-friction seals.
• Oil: Fox recommends specific viscosities for forks and shocks. Use 20-weight for most forks, 10-weight for cold conditions.
• Air spring parts: For Float forks and shocks, replacement air shaft assemblies and O-rings.
• Bushings and bearings: For rear shocks, outer eyelet bearings and DU bushings.
• Damper cartridges: If internal damping fails, you can replace the entire cartridge (e.g., Grip, Grip2, Fit4).

It's important to use genuine Fox parts to maintain performance and warranty. Aftermarket parts may not match tolerances.

How to Choose Fox Suspension Parts

Selecting Fox parts depends on your riding style, vehicle, and budget.

For Mountain Bikes

• Cross-country: Fox 32 fork and Float DPS shock. Light, efficient, but limited travel.
• Trail: Fox 34 or 36 fork, Float DPS or X shock. Good balance.
• Enduro: Fox 36 or 38 fork, Float X2 or DHX2 shock. More travel and damping.
• Downhill: Fox 40 fork, DHX2 shock. Maximum stiffness and control.

For Motorcycles and Off-Road Vehicles

Fox makes suspension parts for many makes. Check compatibility with your vehicle's year and model. For dirt bikes, Fox offers replacement forks and shock assemblies as complete units. For UTVs and trucks, they sell individual shocks and coilover kits.

Compatibility Considerations

• Axle size: Fox forks use 15x110mm or 20x110mm hub standards.
• Steerer tube: Tapered or straight, commonly 1.5" to 1-1/8".
• Travel: Match your frame's design. Exceeding recommended travel can damage the frame.
• Spring rate: For coil shocks, you need the correct spring weight for your weight and riding style.

Maintenance Tips for Fox Suspension

Regular maintenance extends the life of Fox parts. Follow these guidelines:

• Cleaning: After each ride, wipe fork and shock bodies. Use a soft brush around seals.
• Air pressure: Check air pressure before each ride using a shock pump. Fox recommends checking every 10 hours of riding.
• Rebound setting: Adjust rebound according to your weight and terrain. A typical starting point is 10-15 clicks from full slow.
• Full service: Fox recommends lower leg service every 50 hours, full fork service every 100 hours. For shocks, air can service every 50 hours, damper service every 100 hours.

Final Recommendations

If you're upgrading or replacing Fox suspension parts, focus on getting the right model for your use. For mountain bikes, a Fox 36 fork and Float X2 shock are versatile for most trail and enduro riding. For cross-country, the Fox 32 and Float DPS are lighter. For gravity, invest in a Fox 40 and DHX2.

Always buy from authorized dealers to avoid counterfeit parts. Check Fox's official website for compatibility charts and service guides. If you're unsure, consult a local bike or off-road shop that has experience with Fox components.

Remember that proper setup is as important as the parts themselves. Spend time adjusting air pressure, rebound, and compression settings to match your weight and riding style. A well-tuned Fox suspension provides confidence and control on any trail.