This is a very simple product that can be used to measure how worn the rims of a cycle wheel with rim brakes are. Some rims have built in wear indicators, but others don't. If they don't it can be really hard to tell how worn the rim is, and when it needs replacing with a new one. This device allows you to measure to within 0.2mm across the depth of the rim, so you can see if any part of the rim has worn to less than 1mm, (or whatever thickness you choose as the cut-off for replacement). Photo shows what happened to my rim when I kept riding on it when it was worn, which is what made me buy some calipers....
| Brand | Tools N Tools UK |
|---|---|
| Package Dimensions | 13.5 x 7.8 x 4.4 cm; 30 g |
| Material | Stainless Steel |
| Item Weight | 30 g |
