Protection & crash damage
Parts whose job is to make a fall or a rock strike a bad afternoon instead of the end of the trip.
The question to answer first: What breaks first when the bike goes down or lands hard?
Stage 1 — Before your next ride
Cheap, reversible, mostly hand tools. Do all of these before spending on anything in stage 2; several of them are free.
Skid plate / bash plate
$120–$450 · ~1 h to fitAluminium or composite plate covering the sump, filter and water pump, bolted to the frame rather than the engine cases.
A holed sump ends the trip and often the engine. The plastic factory item on most bikes is a mud guard, not armour.
Trade-off: 1.5–3 kg, all of it low down, and it can trap mud against the cases.
Check before you order
- — Frame-mounted, not case-mounted: a case-mounted plate transmits the impact into what you are protecting
- — Access to the oil drain and filter without removing the whole plate
- — Airflow to the oil cooler and exhaust header
Search for parts:Amazon
Radiator guards and braces
$70–$250 · ~1 h to fitLouvred aluminium guards over the cores, plus a brace linking the two radiators on dirt bikes.
A stone through a core or a tip-over that folds a radiator strands you with no way to bodge it. Guards weigh grams and are the cheapest trip insurance on the bike.
Check before you order
- — Whether it clears the fan and shroud on models that have one
- — Guards restrict airflow slightly — a concern on slow technical riding in heat
Search for parts:Amazon
Wrap-around hand guards
$40–$180 · ~1 h to fitAlloy-bar guards bolted to the bar end and clamp, with plastic shells.
They protect the levers and your knuckles in a fall and from branches, and they cut windchill and rain on the road. A snapped clutch lever is a walk home; a bar guard is $60.
Check before you order
- — Bar-end bolt or plug, and inner bar diameter for the insert
- — Clearance to the tank, fairing and switchgear at full lock
- — Handlebar-mounted mirrors and heated grip wiring often need rerouting
Search for parts:Amazon
Frame sliders and axle sliders
$60–$220 · ~1 h to fitDelrin or nylon pucks on frame and axle mounts that slide instead of digging in.
The cheapest way to keep a low-side to plastics and a lever instead of a case, a radiator and a fork leg.
Check before you order
- — Cut-out or no-cut mounts, and whether the fairing needs drilling
- — Bolt grade and length: a slider is only as good as what it bolts through
Search for parts:Amazon
Headlight guard and brake-disc guards
$40–$200 · ~1 h to fitA mesh or polycarbonate headlight shield, and a front disc guard with a rear master-cylinder guard.
A broken headlight on a road-legal bike ends the day legally as well as practically, and a stick through a disc or a rock into the rear master cylinder takes out a brake.
Check before you order
- — Disc-guard bracket usually replaces the axle spacer or caliper bolt — order for your fork
- — Polycarbonate shields yellow and craze; mesh survives longer but cuts light output
Search for parts:Amazon
Stage 2 — The money upgrades
Where the bike actually changes character. Bigger spend, still a home-garage job on most bikes.
Crash bars / engine guards
$200–$700 · ~2 h to fitTubular steel or alloy bars taking a fall on the bar, not on the engine case, fairing or radiator.
On a 240 kg bike, the difference between a scuffed bar and a cracked engine case is a $400 part. They also give you something to lever against when you pick the bike up.
Trade-off: 3–6 kg and the leverage of a long bar can transfer damage to its own mounts.
Check before you order
- — Mounting points into the frame, not the engine — a bar loaded into a case can crack it
- — Whether upper bars foul the fairing, mirror or your knees
- — Width added: some bars make a bike too wide for filtering or a trailer
Search for parts:Amazon
Engine case and cover guards
$80–$300 · ~1 h to fitCarbon or alloy covers over the clutch and ignition cases, and a frame-guard set for the boots.
A holed clutch case dumps the oil in seconds. Boot-worn frame paint is cosmetic, but ignition covers are structural insurance for tens of dollars.
Check before you order
- — Cover thickness against the kick-start or shift shaft clearance
Search for parts:Amazon