Cervelo S3 di2Shimano Adamo ASM Shimano

Shimano Di2 – the dark side of the metrics

This is a short article highlighting some of the wonderful things you can do with Di2. I’m describing what I can do with a 2017 Ultegra R8050 derailleurs and DuraAce R9150 shifters which ARE more capable in the breadth of functionality they support than earlier models. Apologies in advance if you already have Di2 and…

Garmin Edge 820 Battery Test Update

In this recent post, https://the5krunner.com/2016/08/05/navigation-fest-edge-820-and-others-do-9-hours-of-trail-navigation/, I managed to get about 8 hours of battery using turn-by-turn (TBT) navigation – GPS+GLONASS, HRV/per-second recording, HRM and a PM. It lasted between 7.5 or 8.5 hours. I tried a VERY similar route again today (near identical). This time I managed only 6 hours of battery. The only material…