Serious adventure-tourers know how important it is to protect their bike's engine and chassis parts from the effects of crashes, tree branches, mud, stones and all sorts of on- and off-highway detritus. There are a multitude of such bits, beginning with the ubiquitous crash bars, which keep engine cases-and, in a BMW's case, cylinder heads-from being mashed in a tip-over or higher-speed get-off. Other engine-protection parts include aluminum skid plates to protect oil sumps (and cylinders on BMW Boxers), pipe guards to protect exposed exhaust headers and even aluminum fuel-injection assembly guards to keep boots from harming precious Boxer potentiometer plugs. Chassis bits need protection as well, and to this end there are various guards for headlights, oil coolers, brake/clutch reservoirs and, of course, your hands. Boxers need their steering stops modified so even a mild tip-over doesn't break the stock stops off the frame. Surprise: Touratech offers a kit for this, too.