Engineering beyond the workshop
Go deeper into motorcycle suspension engineering—or put shim-stack analysis to work.
Learn how to calculate, design and build damping shim stacks for forks and shocks. Detailed engineering explained in plain language, with numbered equations, defined symbols and worked examples.
Covers shim diameter and thickness, oil flow and orifice damping, base-valve and mid-valve balance, spring and trampoline mid-valve float, gas pressure, ICS springs, cavitation, linkage ratios and dyno testing.
Fluid mechanics, springs, damping, shim-stack design, base valves, mid valves, telemetry and structured testing for tuners, engineers, race teams and advanced riders.
Compare shim-stack direction, damping behaviour and force-versus-velocity trends without relying on guesswork.
The flagship service
A low-cost, professional first step for riders who know the bike is wrong but do not yet know why.
Rider sag, static sag, fork height, tyre pressures and current clicker settings.
Harshness, kicking, diving, deflection, poor grip, bottoming, headshake and balance problems.
Leave with a written Suspension Health Report and prioritised recommendations—Immediate, Next Service, Optional or Monitor.
What riders actually ask us
Riders do not wake up wanting a fork service. They want the front to stop deflecting, the rear to stop kicking and the bike to hold a line.
We separate spring, damping, friction, geometry, tyre and maintenance causes before spending your money.
We look at rebound balance, spring suitability, shock condition, ride height and traction—not just one clicker.
We diagnose support through the full system: spring rate, preload, damping, oil height, chassis attitude and rider use.
Why Mountain Race Shop
Since 1995, Mountain Race Shop has combined workshop experience, race setup, engineering logic and rider education. Every recommendation should make sense on paper, in the workshop and on the track.
Fork and shock servicing, springs, revalving and complete-bike setup.
Shim-stack design, damping analysis and structured setup development.
Books, calculator tools and practical explanations riders can use.
The person behind the workshop
Craig works through the rider's symptoms, checks the motorcycle and explains the recommendation. Mountain Race Shop has worked in suspension and handling since 1995 and has been a K-Tech dealer since 2017.
About Craig and the workshopOil, seals, bushings, bleed, oil height and baseline settings.
View fork servicingOil service, seal-head inspection, gas pressure and setup notes.
View shock servicingCompression and rebound matched to rider, terrain and actual bike behaviour.
View revalvingSpring rates, sag, preload and chassis balance.
View spring setupCheck and adjustment from A$60 with workshop work, clean/regrease from A$160, replacement from A$320 including a standard bearing kit.
View steering pricingPad inspection is included with suspension service. Replacement labour is A$45 per caliper plus pads, with price confirmed first.
View brake pricingTrackside diagnosis, testing plans and setup direction.
View race supportShim stacks, damping curves and structured development work.
View engineeringMTB fork and shock servicing, setup and diagnosis for Snowy Mountains, Jindabyne, Thredbo, Cooma and Canberra riders.
Lower-leg / air-can from A$130 · Full fork from A$299 · Full shock from A$249
View MTB suspension pricingKeep learning
Practical technical articles explaining what the motorcycle is doing, why it happens and what changes actually matter.
Responsible AI commitment
We use carefully selected AI tools to improve customer service, workshop efficiency and technical documentation. Every engineering decision is reviewed by an experienced suspension technician.
AI assists our work. It never replaces our judgement.
Human responsibility for every technical decision.
Minimum personal data and secure handling practices.
AI supports analysis; technicians approve the outcome.
Stop guessing