Carbon Cycling Gear Posted December 8, 2021 Share Hi All just looking for some advice please I have a Dura Ace R9100-P dual power meter , that recently just stopped working , picks up on E-tube and Garmin but doesn’t read any power or cadence, it has the latest software the PM has been to cool heat - I will reserve my comment about them if there anyone in the Cape Town area that can look at it for me? Link to comment Share on other sites More sharing options...
Eldron Posted December 8, 2021 Share Silly question - has the magnet come off the frame? If not check the cable on the left crank - you have to be super careful when you tighten the tensioning screw and place the cable. Link to comment Share on other sites More sharing options...
warick_wrx Posted December 9, 2021 Share I dont own a R9100-P but would have thought power meter technology has moved over to using internal gyroscopes for cadence calculation. Therefore magnets are no longer required. Just find it interesting if the R9100-P does require a magnet. Link to comment Share on other sites More sharing options...
Eldron Posted December 9, 2021 Share 2 hours ago, warick_wrx said: I dont own a R9100-P but would have thought power meter technology has moved over to using internal gyroscopes for cadence calculation. Therefore magnets are no longer required. Just find it interesting if the R9100-P does require a magnet. From DC Rainmaker: Next, I should note again the magnet is indeed required according to Shimano. As I showed in the installation, you do need to place a magnet on the frame for the unit to determine everything from power to cadence. Without it, no luck (or love). In this day and age, I’m not entirely sure I get that approach. Sure, 10 years ago that was commonplace. But sorta like film, it’s mostly out of style these days. Accelerometers are used, and virtually every power meter on the market today is more than good enough both on and off-road with such technology (for pros and normal people like us alike). Link to comment Share on other sites More sharing options...
warick_wrx Posted December 9, 2021 Share Remind me not to buy a R9100-P ! Edited December 9, 2021 by warick_wrx _David_ and DieselnDust 2 Link to comment Share on other sites More sharing options...
Cafe Racer Posted December 9, 2021 Share didn't see the P part 😂 Edited December 9, 2021 by Cafe Racer Link to comment Share on other sites More sharing options...
love2fly Posted December 9, 2021 Share The more I hear about Cool Heat and IRO my recent dealings with them and one of their agents the more I think it's time the winds of change blew into town. Yes it's difficult to get stock of some items at present due to the fallout from Covid, but to not give a hoot is optional....I've always had great service from Cape Cycles in stark contrast... DieselnDust 1 Link to comment Share on other sites More sharing options...
DieselnDust Posted December 9, 2021 Share If the magnet isn't going AWOL, the right side delivers inconsistent readings.... A PM to avoid Link to comment Share on other sites More sharing options...
mecheng89 Posted December 9, 2021 Share Sounds like my Giant dual sided PM. Also stopped working for no apparent reason. Pretty certain it's going to cost a fortune to replace, so have come ot the conclusion I may need to purchase some pedals. Link to comment Share on other sites More sharing options...
stringbean Posted December 9, 2021 Share Sorry to hear about your hassles.Unfortunately the problems with the dura ace 9100 Pm are well documented. Unfortunately shimano backup in SA is non existent and even in an event that they would warranty anything (which they rarely do) they would tell you they don’t have stock. CWC should of been given that agency years ago. Anyway holding thumbs you come right DieselnDust 1 Link to comment Share on other sites More sharing options...
DieselnDust Posted December 9, 2021 Share 2 hours ago, stringbean said: Sorry to hear about your hassles.Unfortunately the problems with the dura ace 9100 Pm are well documented. Unfortunately shimano backup in SA is non existent and even in an event that they would warranty anything (which they rarely do) they would tell you they don’t have stock. CWC should of been given that agency years ago. Anyway holding thumbs you come right true^^ Link to comment Share on other sites More sharing options...
obree Posted December 9, 2021 Share I have Infocranks on my Road bike, Track bike and my indoor trainer bike, all have worked without problem for over 3 years now, and probably cost less that 1 Dura ace PM. DieselnDust and SwissVan 2 Link to comment Share on other sites More sharing options...
SwissVan Posted December 9, 2021 Share 5 minutes ago, obree said: I have Infocranks on my Road bike, Track bike and my indoor trainer bike, all have worked without problem for over 3 years now, and probably cost less that 1 Dura ace PM. Greetings Ob's, hope you are keeping well 👍 Link to comment Share on other sites More sharing options...
Carbon Cycling Gear Posted December 9, 2021 Share 20 hours ago, Eldron said: Silly question - has the magnet come off the frame? If not check the cable on the left crank - you have to be super careful when you tighten the tensioning screw and place the cable. Both checked and are fine , there is no data that reads from the PM Eldron 1 Link to comment Share on other sites More sharing options...
Carbon Cycling Gear Posted December 9, 2021 Share 9 hours ago, Eldron said: From DC Rainmaker: Next, I should note again the magnet is indeed required according to Shimano. As I showed in the installation, you do need to place a magnet on the frame for the unit to determine everything from power to cadence. Without it, no luck (or love). In this day and age, I’m not entirely sure I get that approach. Sure, 10 years ago that was commonplace. But sorta like film, it’s mostly out of style these days. Accelerometers are used, and virtually every power meter on the market today is more than good enough both on and off-road with such technology (for pros and normal people like us alike). Exactly magnet technology on a 20k PM note that this PM is just over 2 years old Link to comment Share on other sites More sharing options...
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