R9100P Shimano Power Meters – A Novel Tech Solution to Fix Accuracy Issues?   More: shimano.com Shimano has very recently released a firmware upgrade for its 12-speed power meters for Dura Ace (FC-R9200-P) and Ultegra (FC-R8100-P). The upgrade promises to fix the accuracy issues found by dcrainmaker, gplama and others. Indeed Ray sat on the fence as always and said the Shimano power meter simply isn’t accurate. Not even close.[dcrainmaker on R9200P] Again, I’ll point out that I was happy with the earlier Shimano R9100P’s accuracy but I haven’t yet tested the latest R9200P. I have had a crack with…

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