CC-4 - Chain Wear Indicator

Product Information

So I happen to be interested in an exact number for chain wear, but it arguably isn't so relevant for any given rider; whether the measurement includes roller wear or not doesn't really matter, because the exact chain wear won't tell them if they can fit a new chain or not anyway. The point which you have definitely left it too late depend on many things, not just the exact pin wear in the chain. Customs clearance fees -these vary from country to country and also vary by declared value in some juristictions. If you wish to return your bike to us please keep it in the box it arrived in and call us on 01772 644340 and we will arrange a collection. I also have moved to measuring chain stretch via Vernier calipers, however my approach differs from yours as I try to mimic the cc-2 type inner measurement but with more precision (see below for methods). According to my calibration chart your L1 measurement suggests a chain stretch of 0.4%, which seems like a lot for 600 km, but not impossible. I would try repeating your L1 measurement a couple more times to be sure. Either way, you will likely need to change your chain soon. Using Vernier Calipers To Measure Chain Stretch

You should always keep proof of postage and we advise you to use a ‘signed for service’ when returning goods.The most accurate way seems to be hang the chain off the bike and use a calibrated ruler/tape measure over several links (in the hanging case, they suggest 100+ links, the longer measurement reduces measurement error). If you don't want to do that, a good ruler/caliper on the bike and measuring lengths. For hygiene reasons, any intimate garments such as facemasks, underwear and swimsuits can only be returned if the items are faulty. Whether it’s a jersey that doesn’t fit, or the colour is not quite right, sometimes you’ll need to return items to us. Perfectly uniform wear (to the nth degree) is not that likely, but if the chain is wearing unevenly to a noticeable extent, this may be a clue that it isn't just ordinary wear that is the culprit; it may mean that the chain is corroding as well. This change of mind return policy is in addition to, and does not affect your rights under the Australian Consumer Law including any rights you may have in respect of faulty items. To return faulty items see our Returning Faulty Items policy.

Most riders will be able to change the chain at a (real) wear of 0.5% but I have seen some where they can do so at nearly 1% wear, without skipping.Please enclose all your details and a covering note explaining the fault and any other useful details.