We classify tires into pneumatic tires (air-filled tires) and solid tires (non-pneumatic tires)

First of all：Inflatable tire (air tire)

Safety advantages: Excellent shock absorption, strong wetland traction, and reduced risk of side slipping.

Safety hazards: Underinflated tires are prone to blowouts and sidewall deformation during cornering，sudden pressure loss upon puncture may lead to loss of control.

The key points for safe tire selection mainly include the following three aspects:

1. Purchase tires with tread wear indicator markings (small protrusions within the tread grooves).

2. Select the type of puncture-resistant layer to reduce the probability of tire puncture.

3. Vacuum tires (without inner tubes) are safer than traditional inner tubes: air leakage is slow after puncture and less likely to occur instantly.

Secondly：Inflatable tire (air tire) 

Safety advantage: Never blow out tires, eliminating concerns about punctures.

Safety hazards: Significant reduction in traction on slippery road surfaces，potential deformation leading to vehicle body sway after prolonged use，poor shock absorption, which may result in foot slippage or frame fracture during severe bumps.

The key points for safe tire selection mainly include the following three aspects:

1. For use only on low-speed (≤15 km/h) and absolutely dry flat roads.

2. Avoid using solid tires with a hardness above 85A (the higher the number, the more slippery they are).

Prior to each cycling session, we can perform "five safety checks" to identify potential hazards.