Alter your tyre pressure based on the surface you’re riding on:
Conventional road wisdom has always held that 100 psi (6.9 bar), more or less, is the magic number for speed and compliance, and on brand-new smooth pavement or at the track, your tyres could feel great inflated to that pressure. However, when riding on anything other than a perfectly smooth surface (which, if we’re honest, is what most of us ride on most of the time), we recommend taking advantage of the benefits of tubeless and hookless technology and going with 10-15 psi / 0.7-1.0 bar less than what you might have normally put in (around 85-90 psi / 5.9-6.2 bar in the case of 100 psi / 6.9 bar mentioned above, for example). This allows the tyre to conform better to imperfections in the road, reducing deflection and wasted energy as well as eliminating a harsh, chattery ride feel. Likewise, in wet conditions, just 10 psi / 0.7 bar less than what you usually might run will give you an increased contact patch and much better grip.
Adjust your tyre pressure according to the volume of the tyre you’re using:
90 psi / 6.2 bar could be perfect for your weight and the road surface when you’re on 25c tyres, but if you decide to swap out to wider 28c tyres, you’ll be increasing tyre volume significantly, which means if you want the same smooth and supple ride quality from your new tyre size, you’ll have to adjust air pressure downward to accommodate.
Adjust your tyre pressure based on your weight:
tyres support the weight of the rider plus the bike plus any luggage or gear; for this reason, heavier riders require more pressure and lighter riders require less. As such, it’s essential to adjust your tyre pressure according to your weight rather than try to use a “one pressure fits all” measurement (like the magic 100 psi / 6.9 bar we mention above!).
Never inflate over the maximum tyre pressure indicated on the rim, the tyre and /or the rim tape:
To make sure every ride is safe, Giant provides a recommended maximum (MAX) tyre pressure, indicated either on the rim, the tyre or the rim tape. You should never inflate your tyre beyond that pressure.
Maximum tyre pressure is NOT the recommended tyre pressure:
To make sure every ride is great, Giant recommends that you never inflate your tyres up to the maximum pressure either. Inflating to maximum pressure is unnecessary and for the reasons discussed above can give a harsh, unpleasant and potentially dangerous ride experience. Instead, Giant recommends following the inflation advice and pressure guide presented here.
Check your tyre pressure before every ride:
This goes all the way back to the beginning: Appropriately inflated tyres conform better to imperfections in the road, absorbing impacts and allowing you to ride more efficiently and safely with more comfort and control. A one minute pressure check before each ride to ensure your tyres are appropriately inflated can make the all the difference!
