Chris Bach Workshop – GS/GSA LC – RDC 1: Understanding the Tire Pressure Monitoring System (TPMS)

Over the next few days, I’ll be dedicating five posts to the RDC system found on our BMW GS/GSA LC motorcycles. It’s a feature we use regularly, yet its operation is often misunderstood until the day a pressure reading disappears or a warning suddenly appears on the dashboard. Rather than putting everything into a single … Read more

Chris Bach Workshop #19 – GS/GSA LC – Why Every Owner Should Understand Their Motorcycle, Even If They Never Turn a Wrench

When people talk about motorcycle maintenance, many owners immediately think about mechanics. Tools. Oil changes. Spark plugs. Valve clearances. Torque specifications. And yet, understanding your motorcycle does not necessarily mean becoming a mechanic. It is probably one of the most common misconceptions in our world. Because in reality, an owner may never remove a single … Read more

Chris Bach Workshop #18 – GS/GSA LC – Ride Modes Explained: What Your Bike Is Really Doing Under You

Quick transparency note: the diagrams were AI-generated to help illustrate the explanations more clearly. The technical analysis and wording are mine. ⚠️ Technical Note This article is based on a technical analysis of BMW GS systems and a simplified educational interpretation of complex electronic riding dynamics. The information provided is intended to improve overall understanding … Read more

Chris Bach – Workshop Note / Quick Check #16 – GS/GSA LC (R1200 LC & R1250) – The Best Diagnostic Tool Is Familiarity

When riders think about motorcycle diagnostics, they usually think about tools. MotoScan. GS-911. Fault codes. Live data. Service functions. And don’t get me wrong, those tools are incredibly valuable. But most problems aren’t discovered by a diagnostic tool. They’re discovered by the rider. A slightly different vibration. A new sound. A different starting behavior. A … Read more

Chris Bach Workshop #17 – GS/GSA LC – Sport Air Filters: More Power or Just More Air?

One modification I see recommended all the time is replacing the original BMW air filter with a DNA, K&N, or BMC performance filter. The promise is always the same: “Better breathing.” “More power.” “More torque.” “Sharper throttle response.” But is that actually true on a modern R1200 LC or R1250? The answer is: sometimes yes, … Read more

Chris Bach Workshop #16 – GS/GSA LC – When Is A Noise Actually A Problem?

Let’s be honest… At some point, almost every GS owner has heard a noise and immediately started imagining the worst. A ticking noise.A clicking noise.A slight knock.A vibration that “wasn’t there before. Suddenly, the mind starts working overtime. You search forums.You watch videos.You find ten different explanations.Nine of them involve expensive repairs. 😅 The reality? … Read more

Chris Bach Workshop #15 – GS/GSA LC – Rust Always Starts With a Small Detail

When riders talk about maintenance, the conversation usually focuses on oil changes, valve checks, driveshafts, brakes, diagnostics, suspension settings, or electronic systems. Yet one of the most common issues affecting BMW GS and GSA motorcycles has nothing to do with engine performance. It’s corrosion. The problem is that corrosion rarely starts with something dramatic. It … Read more

Chris Bach – Workshop Note / Quick Check #14 – GS/GSA LC (R1200 LC & R1250) – The Simple Test to Find Out Whether Your Motorcycle Has Changed Without You Noticing

After this week’s Workshop, here is a very simple check you can perform. Choose a road you know perfectly. A road you ride regularly. Then honestly ask yourself these few questions: • Is the braking as precise as it was a year ago?• Does the bike remain as stable over bumps?• Do direction changes still … Read more

Chris Bach Workshop #14 – GS/GSA LC – Why We Stop Noticing Our Bike Is Aging

There is something very deceptive about a GS/GSA LC. Unlike a sudden failure, many things degrade slowly, so slowly that we eventually start considering them “normal.” And that’s exactly the trap. The rider’s brain adapts all the time. A shock absorber slowly getting tired.Braking that feels slightly less precise.An engine that feels a little rougher … Read more