There are some products that people will know in an instant if they want– or don’t. It seems as though Feedback Sports’ new digital Chain Gauge might just one of those products.
The idea behind chain gauges is to inform mechanics (home and professional) when their chain is stretched to the point of damaging the rest- the more expensive parts- of their drivetrain such that they won’t work with a new chain. Developed with the help of chain company KMC, Feedback’s Chain Gauge is basically a modified, spring-loaded digital caliper that measures chain stretch. If .8mm or more stretch is measured, Feedback recommend chain replacement. Their may be simpler chain gauges out there, but the Feedback provides more detailed information than others. We brought one home from the show- look for a review after we’ve given it some use, comparing it to our trusty old mechanical chain gauge, and gathering some professional mechanics’ feedback. $80 from your local bike shop.