204. 自転車タイヤ
自転車タイヤは、自転車の車輪周囲へ取り付けられ、道路など走行面との接触を担うゴム製タイヤです。トレッド、空気圧、幅、構造はグリップ、転がり抵抗、快適性、操縦性へ影響します。
適切な空気圧を保ち、摩耗、切れ、ひび、異物の刺さりなどを定期的に点検します。適切な種類と空気圧は自転車、利用者、荷重、走行条件によります。
Why are bicycle tyres important for safety?
Bicycle tyres provide the grip needed for steering and braking and help absorb irregularities in the road surface. Worn, damaged or incorrectly inflated tyres can reduce control and increase the risk of a puncture or loss of grip.
What should you check on a bicycle tyre?
Check the tyre for adequate pressure, excessive tread wear, cuts, cracks, bulges and objects embedded in the tread. The tyre should also be correctly seated on the rim.
Do all bicycles use the same type of tyre?
No. Tyre width, diameter, tread and construction vary according to the bicycle and its intended use. Road bicycles commonly use relatively narrow tyres, while mountain bikes generally use wider tyres with more pronounced tread.

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