Suspension · Chassis · Engines

Motorcycle Suspension
Service & Tuning

Suspension, chassis, wheels, and engine work built around the rider, the motorcycle, and the job.

Spanaway, Washington

Local & Nationwide Service

Individual Rider Build Records

Dyno Verified. Race Proven.

Why DFC

Built around the rider—not a generic setting.

DFC Suspension was founded in 2021 by Rob Simmons, but the foundation started long before the business name existed. A lifelong focus on motorcycles, fabrication, hydraulics, engines, and suspension development shaped the shop into what it is today.

Every build combines rider feedback, mechanical inspection, tuning experience, and dyno-verified data where applicable. Individual rider files and build records keep the work connected to the rider, the motorcycle, and how it is actually used.

Clear communication

Up-front pricing

No guesswork

Service Divisions

One shop. race focused, race proven!

From suspension feel to internal engine work, each service stays focused on function, reliability, and the motorcycle as a complete system.

DFC Suspension fork and shock service

01

Core Division

Suspension

Service and tuning for motocross, off-road, flat track, ATV, UTV, street, and competition applications.

  • Fork and shock rebuilds
  • Respring and revalve services
  • Fluid service and maintenance
  • Lowering and flat track conversions
  • Chassis measuring and setup

Service process

A collaborative build from first call to final setting.

The recommendation begins with the rider and the job—not a generic setting copied from another motorcycle.

01

Define the job

Rider, motorcycle, discipline, terrain, pace, feedback, and goals.

02

Inspect & document

Mechanical condition, measurements, current setup, and required scope.

03

Build & verify

Service, tuning, assembly, and dyno confirmation where applicable.

04

Return with a baseline

Clear settings, build records, and a starting point for rider feedback.

Suspension Maintenance

Know when your suspension is due.

Recommended intervals apply to both fork and shock assemblies unless a shorter model-specific interval applies.

Motorcycle UseComplete Oil ServiceSeal Service / Rebuild Cycle
Moto and off-road15 operating hours30 operating hours
Moto and off-road racers10 operating hours20 operating hours
BDR / adventure off-road15 operating hours30 operating hours
Track-only – sportbike and supermoto15 operating hours30 operating hours
Adventure – predominantly pavement10,000 miles20,000 miles
Street15,000 miles30,000 miles

Service Cycle: Seal service / rebuild occurs every second complete oil service.

Complete Oil Service

Fork service includes all applicable oil chambers and cartridges. Shock service includes disassembly, cleaning, bleeding, and nitrogen recharge.

Seal Service / Rebuild

Includes complete oil service, full disassembly, cleaning, seal replacement, inspection, and applicable wear components.

Classification

Adventure motorcycles used primarily on pavement follow mileage. BDR-style adventure off-road use follows operating hours.

Override

Shorter model-specific manufacturer intervals and condition-based requirements take precedence. Leakage, contamination, crash damage, fade, or abnormal operation require immediate inspection.

Up-Front Suspension Pricing

Choose your service scope.

Select the service work you need and carry it directly into the suspension request form. Prices shown are labor only; parts are additional.

Fork services

Fork labor

Fork Oil Service

Labor $130 + parts


Fork Seal Service

Labor $170 + parts


Full Fork Rebuild

Labor $240 + parts


Fork Spring Installation

Labor $95 + parts


Fork Lowering Service

Labor $230 + parts


Fork Revalve

Labor $350 + parts


Shock services

Shock labor

Shock Oil Service

Labor $115 + parts


Shock Seal Service

Labor $140 + parts


Full Shock Rebuild

Labor $150 + parts


Shock Spring Installation

Labor $40 + parts


Shock Lowering Service

Labor $185 + parts


Shock Revalve

Labor $250 + parts


Valving shims

$1.50 each

Suspension removal & installation

Starting at $55 per end

Enhanced cleaning

Starting at $27.50 per end

Engine services & shipping

Quoted by scope

Labor prices apply to off-bike, clean components. Parts, removal and installation, enhanced cleaning, shipping, and applicable tax are additional. The selected labor subtotal is a planning estimate; overlapping or combined work may be adjusted after inspection and scope confirmation.

Now Accepting Work

The Engines Division is open.

The internal mechanical work that supports performance, reliability, and complete motorcycle setup now has a dedicated place at DFC Suspension.

01

Valvetrain

02

Pistons

03

Clutches

04

Crankshafts

05

Transmission service and repair

Focused work. Clear scope. Built with purpose.

Motorcycle engine components prepared for service

02

Mechanical division

Engines

Focused internal mechanical work supporting performance, reliability, and a complete motorcycle setup.

  • Valvetrain
  • Pistons
  • Clutches
  • Crankshafts
  • Transmission service and repair

Focused scope: internal engine work. Electrical, carburetor, and general-service work are not included.

Steering head bearing service
Motorcycle wheel building and service

03

Supporting Systems

Chassis & Wheels

  • Linkage, swingarm and steering-head bearings
  • Axle push-bolt and motor-mount repair
  • Wheel building and truing
  • Hub and wheel-bearing replacement
  • Tire and tube replacement
Motorcycle suspension fork and shock dyno testing at DFC Suspension

04

Verification

Dyno Testing & Setup

  • Fork and shock testing
  • Troubleshooting
  • Post-build confirmation
  • Graphing and baseline settings

Coming Soon

DFC Mobile Service

Trackside support and suspension dyno service is coming to the paddock.

A dedicated trailer is being outfitted as a trackside support, suspension dyno and mobile suspension service unit. Event availability, service coverage, and the first field schedule will be announced as the build comes online.

Mobile Unit 01

Build in progress

Parts & Technical Network

Supported by proven suppliers.

K-Tech

Race Tech

Technical Touch

ohlins

andreani

fox

cp-carrillo

pro circuit

hinson

pro-x

dubya

Buchanan Spoke & rim

Start the Conversation

Tell us about the rider, the motorcycle, and the job.

Phone

253-318-8400

Location

Spanaway, Washington

Hours

Mon–Fri 8am–7pm
Sat 10am–4pm · Sun closed

Service Area

Local drop-off & nationwide shipping