The importance of tyre pressure

Whether you’re commuting, touring, or just heading out for a weekend ride, keeping your tyres at the correct pressure directly impacts how your bike handles, how long your tyres last, and how safe you are on the road. 

Tyres are engineered to work best within a specific pressure range which, perhaps surprisingly, are almost always recommended by the motorcycle manufacturer and not the tyre manufacturer. This recommended pressure is determined by taking several factors into account: the construction of the tyre, the weight of the bike, and the way forces are transferred during braking, cornering and acceleration as determined by the individual motorcycle’s design brief.

When your tyre pressures are spot-on, your bike should handle as it was designed to. Steering should feel direct, grip will be maximised, and the suspension will be able to perform its job properly. Drop below that optimal range and things will start to feel a bit more difficult as the complementary forces start working against each other.

Riding on under-inflated tyres is more common than most riders realise. Even a slight drop in pressure can affect the way a bike corners, particularly at speed. That squirmy, vague feeling in the front end? That could be low pressure. A sluggish turn-in or a tendency for the bike to feel like it wants to stand up mid-corner? Same deal.

Low pressure also generates more heat in the carcass of the tyre which causes it to wear faster and unevenly, meaning you’ll be up for new tyres more regularly than you’d otherwise be. 

Braking distances will increase when tyres are under inflated and ‘soft’, particularly in wet conditions, because the contact patch becomes distorted and much less effective.

On the flip side, pumping your tyres up too hard by putting too much air in them can make your bike feel twitchy and harsh. Over-inflated tyres have a much smaller contact patch, which reduces grip levels and will also lead to uneven wear, particularly in the centre of the tread. You’ll feel every bump and ripple in the road, and the bike may be more prone to skipping or deflecting over rough surfaces. In both cases, the tyre’s performance is compromised and, with it, your safety and confidence as a rider.

Correct tyre pressure gives you the best balance of performance, economy, and longevity. 

Ideally, you should check your tyre pressure at least once a week, and definitely before every long ride, or when you’re carrying a pillion or luggage. Tyres lose air naturally over time – even more so if the bike is sitting idle, or the temperature has been fluctuating. 

Use a quality pressure gauge and check your tyres when they’re cold for the most accurate reading. Ambient heat or a short ride around the block can raise the internal temperature and give you a false reading.

Tyre pressure also plays a role in how efficiently your bike rolls. Under-inflated tyres create more rolling resistance, which means the engine must work harder. That adds up to more fuel used over time.

Relying on the gauge at the service station is better than nothing, but you’ll find a lot of them lose their calibration over time. A compact, digital tyre pressure gauge is an inexpensive investment that can pay for itself in grip, safety, and peace of mind. Some even come with built-in tread-depth indicators.

Many modern bikes now come with tyre pressure monitoring systems (TPMS) as standard fitment. These systems give you real-time pressure readings on the dash and will often warn you if pressure drops below a safe threshold – especially handy if you pick up a puncture while riding.

If your bike isn’t fitted with TPMS, there are both genuine and aftermarket kits available, ranging from cap-style sensors that screw onto your valve stems, to internal sensor systems that connect via Bluetooth to your phone. As far as optional accessories go, a TPMS may not add much in the way of bling, but it will offer plenty in the way of safety and self-awareness.

Tyre pressure recommendations vary between bikes, so always refer to the motorcycle manufacturer’s specifications – usually found in the owner’s manual or on a sticker near the swingarm or chain guard. These pressures are based on how the bike is engineered, factoring in weight distribution, suspension design, wheel size, and intended use.

It’s a common misconception that recommended tyre pressures should come from the tyre manufacturer, but tyres are made to fit a broad range of bikes. It’s the bike manufacturer who determines how those tyres should perform on your specific model. That’s why two bikes running the same tyres might have different pressure recommendations.

And remember, if you’ve fitted different tyres from standard, it might be worth checking in with your dealer. Some tyres have specific load or speed ratings that can influence ideal pressures, especially under heavy load or high-speed conditions.

Tyre pressure isn’t the most glamorous part of motorcycling but, given what’s at stake and the role tyres play, it is one of the most important. Keeping your tyres properly inflated means you’re safer, your bike handles better, and your tyres last longer. It also saves you money in the long run, both at the pump and in the tyre shop. So, the next time you gear up for a ride, take a minute to check your pressures. Your tyres, hip pocket, and future self will thank you.