Verificando o Desgaste no Aro da Roda da Bicicleta

Introduction

As sapatas de freio desgastam-se com o uso, mas os aros do freio também desgastam a superfície de frenagem no aro da roda da bicicleta. Os aros de alumínio se desgastam mais rapidamente do que os aros de aço de carbono.

Step 1

Indicators - Verificando o Desgaste no Aro da Roda da Bicicleta

Indicators

Some modern aluminium rims designed for use with rim brakes have a groove, or a sunken dot in the braking surface. When the groove is gone the rims need to be replaced.

Step 2

Inspect the bike wheel rim - Verificando o Desgaste no Aro da Roda da Bicicleta

Inspect the bike wheel rim

If the braking surface is worn slightly concave it shows your bike wheel rims are getting near the end of their useful life. There may be some other signs of visible wear that indicate the bike wheel rim may need replacing.

Step 3

1mm - Verificando o Desgaste no Aro da Roda da Bicicleta

1mm

If your bike wheel bike wheel rims have seen long service check them at least as often as you change the tyres. If the walls – the braking surface – are less than 1mm thick consider replacement.

Pro Tip

For safety, the front bike wheel rim is more critical. If the rear bike wheel rim fails dramatically you stop. If the front fails you are more likely to crash.