Front Tread Depth - PTW

Svensk översättning


Database table ptw_wheel
Database variable name ptw_wheel_tread_depth
Introduction date 2011-10-01
Expiration date Still active

Short description

PTW front tyre tread depth.




Specify the depth in millimetres of the PTW front tyre tread.

This measurement can be used to determine if the front wheel tread depth is within the local authority legal standard

(e.g. UK government regulation is 1 mm minimum for motorcycles over 49cc).

(OECD RS9/TEG/ 151 information)

Tread depth measurement is accomplished by using a metric or imperial tread depth gauge which is commercially available through many automotive supply facilities.

Measure the tread depth at the center of the tread with the depth gauge.

The tire may wear unevenly therefore it is best to take measurements at several places and compute the average tread depth (see Figures 1, 2 and 3).

Figure 1. Placement of tyre tread depth indicator on centerline of tire

Figure 2. Placement of tread depth indicator foot across tyre groove

Figure 3. Depress plunger until probe contacts bottom of tyre tread groove and take reading from top edge of tyre tread depth indicator housing

Short description

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