T-CLOCS Motorcycle Inspection

Tools Needed: Your eyes, hands, and attention (no wrenches required!)
Estimated Time: 3-5 minutes once you know what you're doing
Difficulty Level: ★☆☆☆☆ (Beginner-Friendly)

What is T-CLOCS?

T-CLOCS is just a memory device to help you remember what to check on your bike before you ride. The acronym stands for Tires and Wheels, Controls, Lights, Oil and Fluids, Chassis, and Stands. Some organizations teach it slightly differently - sometimes the first C is "controls and cables," sometimes the L includes "license plate" - but the core idea is the same.

Walk around your bike. Look at things. Touch things. Notice things. That's it.

You're not doing a teardown inspection. You're not getting out micrometers and feeler gauges. You're having a quick conversation with your motorcycle: "Hey, are we good to go?" And your bike will tell you, if you pay attention.

The whole thing takes maybe five minutes once you know what you're looking for. In the beginning it might take ten, but that's fine; you’ll learn your bike and find your rhythm.

T is for Tires and Wheels

Start with your tires because they're the only part of your bike actually touching the road. Everything else is just along for the ride.

Tire pressure matters more than most riders think. Your owner’s manual or service manual will tell you what pressure to run, and most motorcycles also have a plate (usually near the steering neck, frame downtube, or swing arm) with your pressure information. For road bikes it's usually somewhere between 28 and 42 PSI, while off-road bikes can be much lower, but check to confirm for your specific make and model.

“There is a pressure listed on the tire. Can’t I just use that?” No! That same tire might fit on a bike that weighs half what your bike weighs, or twice what yours weighs. The pressure listed on the sidewall of the tire (this is the part of the tire that engages with the wheel, not the part you ride on) is the maximum operating pressure for that tire. You will always want to defer to your manual or motorcycle to determine the recommended pressure for your specific vehicle.

“What if I’m not running the same tires that came on my bike? Do I still run the pressure that is listed in the manual?” Not always, especially if you’re changing from a street tire to more of a mixed-use/adventure tire or vice versa. But if you’re changing between brands or models within the same general type of tire, the tire pressure listed in the manual or on your bike will be a good starting point. If the bike handles better or if the tires wear better with a bit more or less pressure, that’s fantastic! That means you’re paying close enough attention to the bike and your tire pressures to recognize there is room for improvement, and that – not militant adherence to one specific pressure – is the main focus here.

“How do I know if changing the pressure will help with handling?” If your tire pressure is low, your bike will handle like a slug. I can tell if your tire pressure is too low just from rolling it around in the shop, without riding it or breaking out my tire gauge, because it doesn’t roll as smoothly or easily. In the long term, your tires are more prone to overheating and you’ll wear tires out much more quickly. Too high and you get a harsh ride with less grip, and excessive tread wear in the very center of the tires.

If you don't have a tire gauge yet, get one. They're cheap. In the meantime, press your thumb hard into the sidewall. It should feel firm with just a little give. Not rock hard, not squishy. This won't tell you if you're at 32 versus 36 PSI, but it'll catch major problems.

Tread depth is your second big concern. Most tires have little wear bars (also called “tread wear indicators”) molded into the tread grooves. When your tire tread wears down level with these bars, you're done - get new tires. How do you find your wear bars? There will be some kind of marking on your sidewall that corresponds with the wear bars. Depending on the brand, this may be an arrow, a triangle, a logo, or the letters “T.W.I.” The manufacturers are nice enough to have no uniformity whatsoever in this regard, so it’s usually easiest to find these markings when the tire is brand new and the wear bars are easiest to see.

Some countries require 1mm of tread, some require 2mm, but honestly once you're near the wear bars it's time to replace them regardless of what's legal. If you’re in the US you can use the penny test, if you still have a penny laying around: stick a penny into the tread groove with Lincoln's head pointing down. If you can see the top of his head, you need new rubber.

While you're looking at tread, check for anything embedded - nails, screws, glass, rocks. Run your hand lightly over the tire surface. Your fingers will find things your eyes miss.

Look at the sidewalls for cracks. Some surface crazing is normal on older tires, but deep cracks mean the tire is aging out and needs replacement. Also look for any bulges or weird deformities - these mean internal damage and are dangerous.

Tire age matters as much as tread depth. Rubber degrades over time even if you're not riding. Every tire has a manufacture date code stamped on the sidewall - it's part of a longer series of letters and numbers. Look for the last three or four digits in this longer number, usually found inside of a pill-shaped marking. These three or four numbers tell you the week and year of manufacture, with the first one or two digits corresponding to the week and the last two digits corresponding to the year. For example, "2319" means this tire was manufactured in the 23rd week of 2019. “802” means it was manufactured in the eighth week of 2002.

You might also see "DOT" before this code if your tire meets US standards, or "ECE" if it meets European standards, but the date code format is the same worldwide - those last three or four digits tell you when your tire was made.

Manufacturer recommendations vary a little bit, but the general rule is to avoid purchasing tires that are more than 5 years old, and replace tires that are more than 7 years old, regardless of tread depth. Some say 10 years maximum, but I wouldn't push it. If your tires are more than 5 years old, start planning for replacements even if they look fine. This is especially important if you bought a used bike and don't know the tire history, or if your bike sits a lot and doesn't accumulate miles.

Wheels need a quick once-over too. If you have spokes, tap them with your fingernail, a pen, or the handle portion of a screwdriver. They should all ring with roughly the same tone. A dead thud means a loose or broken spoke. Check your rims for cracks, dents, or bends - especially if you've hit a pothole recently or dropped the bike.

One more thing: your tires will tell you stories if you learn to read them. Wear in the center only? You're probably running over-inflated or doing lots of highway miles. Wear on the edges? Under-inflated, or you're doing a lot of aggressive cornering. Cupped or scalloped wear pattern? Suspension issue or balance problem. I'll go deeper into reading tire wear in a future post, but for now just notice what your tires look like so you can spot changes.

C is for Controls

Your controls are how you talk to your motorcycle. If your bike can't hear you clearly, bad things happen.

Squeeze your front brake lever. It should feel firm with good resistance. If it pulls all the way back to the handlebar, you've got a problem - either air in your brake lines (if you have hydraulic brakes), the cable is out of adjustment (if you have cable-actuated brakes), or your pads are worn down to nothing. Either way, don't ride until it's fixed.

Squeeze your clutch lever, if you have one. Does it move smoothly? Does it have a little bit of freeplay before it starts engaging? Too much freeplay and your clutch won't fully disengage, making shifting difficult. Too little and your clutch will slip. Cable actuated clutches require regular adjusting, and you with typically find easily accessible adjusters at the handlebar, near the engine, or midway down the cable. Hydraulic clutches tend to be more complicated to troubleshoot or adjust – problems typically arise from old, contaminated fluid, system leaks, or worn clutch plates – but they require less frequent maintenance than cable types.

Roll your throttle on and off a few times. It should snap back immediately when you let go, unless you have a throttle lock engaged. There should be some freeplay, meaning you can move the throttle a small amount (usually around 2mm, but check your manual for a spec) before your throttle actuates. A sticky throttle is genuinely dangerous. If your bike uses throttle cables, the problem could be a kinked cable, dirt in the mechanism, or bad cable routing. If your bike uses throttle by wire, which uses electrical impulses rather than a physical cable to tell the bike to speed up, a sticky throttle is most likely caused by debris under the throttle tube, or debris between the grip and the bar end or the switch housing. Turn your handlebars all the way left, then all the way right; make sure the throttle still has freeplay and moves freely in both positions.

Test your rear brake pedal. Press it - you should get firm resistance and it should return to position smoothly. If the brakes don’t actuate properly, your mechanical or hydraulic brake troubleshooting steps are similar to the front brake. If the brake lever sticks down, lubricate the brake lever pivot and pay attention for any bent parts.

Check your shift lever and footpegs. Make sure everything is tight, with no bent or loose parts. If you have folding footpegs, make sure they fold and unfold properly.

This whole controls check takes maybe 30 seconds and it's one of the most important part of your inspection. You can limp home with a dead headlight. You can't ride safely if your brakes don't work.

L is for Lights and Electrics

Turn on your headlight. Make sure your high beam and low beam both work. Check your lenses for any cracks or condensation.

Have someone watch your brake light or position yourself where you can see it reflected in a window or garage door. Does it come on when you squeeze the front brake? Does it come on when you press the rear brake? Both switches should work independently.

Hit your turn signals. All four corners blinking at the right speed? Fast blinking usually means a burned-out bulb somewhere.

Test your horn. You might not use it often, but when you need it, you need it to work.

Most of this you can check while sitting on the bike after you've started it up, and it only takes a minute or two. Being visible to other drivers is one of your main defenses on the road, so don't skip this.

O is for Oil and Other Fluids

How you check your engine oil depends entirely on your bike. Some bikes want the engine cold, some want it warm. Some want the bike upright on the centerstand, some want it on the sidestand. Some want dipsticks fully seated, while others want the dipstick to engage just a thread or two. Check your owner's manual because doing it wrong will give you a false reading.

Most bikes have either a sight glass (a little window on the side of the engine) or a dipstick. Your oil level should be between anywhere the MIN and MAX marks, which may be denoted by words, lines, dots, or hashmarks. Some site glasses have a circle printed inside the glass window; your oil level, when checked per the manual, should be somewhere inside that circle. Regardless of the symbols used, some things remain the same: if your oil level is below the minimum mark, that’s bad - you risk engine damage. Filling above the maximum mark can cause problems too, making the bike difficult to start and risking damage to gaskets and seals.

While you're looking at your oil, notice the color. Fresh oil is clear or amber. With use it gets darker - dark brown or black is normal. But if it's milky or foamy looking, you've got water or coolant getting into your oil somehow, which is a serious problem. If you see metallic flakes or glitter, that's metal particles from inside your engine wearing down, also a serious problem.

If your bike is liquid-cooled, check the coolant level in the overflow reservoir. It's usually a translucent plastic bottle somewhere on the bike. Your manual will tell you whether the level should be checked upright or on the sidestand, with the bike hot or cold. The level should be between the MIN and MAX marks. Never open the radiator cap when the engine is hot - you'll get scalding steam and pressurized coolant in your face.

Check your hydraulic fluid reservoirs, if your bike has them. (Some bikes have only mechanical brakes/clutch or a combination of hydraulic and mechanically actuated brakes and clutch, so you may only have some of none of these reservoirs.) Typically there is one reservoir next to your front brake lever and another one for the rear brake, usually near the rear brake pedal or under the seat. The clutch reservoir will be next to the clutch lever. The reservoirs may be fully translucent, or they may be opaque with a small clear window. Either way, you should be able to see the fluid between MIN and MAX.

Opaque reservoirs on your handlebars often makes it difficult to tell what you’re looking at, especially if there is no bubble of air at the top of the window. If this happens to you, try moving the handlebars full-lock left or right. This changes the angle of the reservoir relative to the fluid, making it easier to tell if you’re seeing very clear fluid, very dirty fluid, or if the fluid level is actually too low. Clean fluid should be clear or light amber. If it's dark brown or black, it's contaminated or old and needs changing. Brake fluid absorbs water over time, which reduces braking performance, so your hydraulic fluid should be changed out at regular intervals (two years is standard) regardless of the miles traveled.

Last, make sure you have enough fuel for your ride with some margin for getting lost or hitting traffic. Sounds obvious, but I've seen riders push their bikes to gas stations.

C is for Chassis

This is where you look at the frame, suspension, and drive system.

For the frame, you're mostly looking for cracks, especially around welds and high-stress areas. Unless you've crashed or dropped your bike hard, you're probably fine, but it's worth a quick visual check.

Suspension gets more attention. Grab your front brake and push down hard on the handlebars. Your front forks should compress smoothly and extend smoothly. Do the same thing at the rear - press down on the seat and feel the shock compress and extend. It should return smoothly and firmly, not bounce up and down. Listen for any clunking, grinding, or binding. It should feel smooth.

Look at your fork tubes. See any oil? Fork seals leak eventually, and when they do you'll see oil on one or both inner fork tubes (the narrower of the two tubes, which come together at the fork seal.) Leaking seals mean your suspension isn't working properly and you need to get them replaced. It’s especially important to address any leaks before fork oil ends up on your front brake pads, which will render them ineffective.

Your drive system depends on what kind of bike you have. If you've got a chain, check the tension by pressing up on the bottom run of chain. It should have some slack - typically around 25-35mm or about an inch to an inch and a half, but check your manual because it varies by bike. Too tight puts stress on your transmission and bearings. Too loose and the chain can jump off the sprockets.

While you're looking at your chain, check the condition. Does it look lubricated? It should look slightly wet or oily, not dry and rusty. Are there any tight spots, kinked links, or stiff links? Run your eye along the chain and see if there are any spots where it binds up. Look at your sprocket teeth - they should be relatively even and symmetrical, not hooked like waves or pointed like shark teeth, and there definitely shouldn’t be any broken teeth.

Belt drives need similar checks. Look for cracks, fraying, missing teeth, or debris caught between the belt and pulleys. Belts usually run tighter than chains, so check your manual for proper tension.

Shaft drives are mostly sealed systems, so you're looking for oil leaks around the final drive housing and listening for unusual noises when you ride. Some bikes let you check the final drive fluid level, but most don't without taking things apart.

Do a quick scan of all your fasteners and hardware. Anything obviously loose, missing, or hanging off the bike? The more familiar you get with your bike, the more you'll notice when something looks different.

S is for Stands

Your sidestand needs to deploy and retract smoothly, and the spring needs to be strong enough to actually hold it up. Check that the footpad isn't so worn that it'll slide on pavement instead of gripping. Look at the mounting points - nothing cracked or loose?

Most modern bikes have a safety switch that prevents you from riding away with the stand down. It's annoying when you're trying to warm up your bike while standing next to it, but it's saved a lot of bikes from getting dumped when someone forgot to put the stand up.

If you have a centerstand, same basic checks - deploys smoothly, springs are good, feet aren't too worn, hardware is tight.

How I Actually Do This

I start on the left side of the bike. Check the front tire, squeeze the clutch and front brake, look at the controls. Walk to the front and check the headlight and front forks. Move to the right side - check the front tire again from that angle, check the throttle, look at the oil level if the sight glass is on that side. Walk to the rear and check the rear tire, brake light (actuating the front and rear brakes separately), suspension, chain. Move back to the left side and finish checking anything I missed.

Then I sit on the bike, start it up, and test the horn, lights, and signals while I'm putting on my gloves and helmet.

The whole thing takes about four minutes. In the beginning it might take you longer, and that's fine. You're not racing anyone.

What You'll Actually Find

Most T-CLOCS checks find nothing wrong, and that's good. That means your bike is in good shape and ready to ride. Some checks you'll spot small stuff - a stone in your tire tread, your chain looking dry, a turn signal bulb that's burned out. Stuff you can fix in a few minutes.

Occasionally you'll find something serious. A tire with a nail in it. Brake lever that pulls all the way to the handlebar. Fork seals leaking everywhere. And that's when T-CLOCS pays for itself, because you caught the problem before it caught you somewhere inconvenient or dangerous.

The other thing T-CLOCS does is teach you what's normal for your bike. You learn what your tire pressure feels like when it's right. You learn what your chain looks like when it's properly tensioned and lubricated. You learn the sound your horn makes, the feel of your brake lever, the color of your oil.

Once you know what's normal, you'll instantly notice when something changes. That's when you go from just doing a checklist to actually having a sense for your motorcycle's condition.

When You Find a Problem

T-CLOCS is about noticing problems, not necessarily fixing them all yourself. If you find something you can fix - tighten a loose mirror, adjust your chain, top off your coolant - great. If you find something you're not comfortable fixing or don't know how to fix, that's what shops are for.

The whole point is catching problems early when they're usually easier and cheaper to fix. A dry chain takes five minutes and a bit of lube to fix. Ignoring it until it's rusted and the sprockets are destroyed? Now you're looking at a few hundred dollars and some real work.

Don't beat yourself up if you find things you can't fix yourself. The fact that you noticed is already a big step forward.

Your Homework

Before your next ride, do a complete T-CLOCS check. Go slow. Really look at everything. If you're not sure about something - "Is this tire wear pattern normal?" "Should my chain look like this?" - take a photo. We'll talk about diagnosing specific problems in future posts.

Make some notes. What's your tire pressure? What does your oil level look like? How's your chain tension? These are your baseline observations. Do another T-CLOCS next week and compare. That's how you start seeing patterns and changes. Don’t forget to check the WRWR app for Mechanical Challenges – you can earn points right from your first T-CLOCS inspection!

That's it. You're not trying to become a master technician overnight. You're just learning to pay attention to your motorcycle.