Dusk
08-25-04, 02:02 PM
Does anyone have any experience using a SRM Powermeter? If so what is your opinion of it and the data collected?
Training & Nutrition - SRM Powermeter
Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.View Full Version : SRM Powermeter
Ric Stern
08-25-04, 03:53 PM
Does anyone have any experience using a SRM Powermeter? If so what is your opinion of it and the data collected?
yes. what did you want to know? i have/had all the power meters
ric
yes. what did you want to know? i have/had all the power meters
ric
Dusk
08-25-04, 09:24 PM
yes. what did you want to know? i have/had all the power meters
ric
Well If so what is your opinion of it ? and the data collected, what do you get downloaded? is it easy to download the data. How have you use it(the data) to imporve your riding?
ric
Well If so what is your opinion of it ? and the data collected, what do you get downloaded? is it easy to download the data. How have you use it(the data) to imporve your riding?
Ric Stern
08-26-04, 12:48 AM
Good, reliable and accurate -- so long as it's calibrated regularly.
if it's an Amateur model it needs calibrating with a *known certified* mass about once every 4 to 6 weeks to get reliable data. This involves hanging known certified mass from the pedals, using 4 points around the crank circle on both cranks and calculating the theoretical slope and comparing it with what you have. the slope then has to be changed accordingly. there can be significant differences between each side with an Amateur model. The Pro requires less frequent calibrations.
details of the calculation can be seen here in the SRM manual: http://www.srm.de/Online_Manual/SRM_English_Manual/PMCalibrate.htm
All the data that records can be downloaded, e.g., time, distance, speed, temperature, power, HR, etc. Plugs into your PC
I use the data from various power meters to set training zones, and get the riders i coach to ride at specific training levels. this tends to cut out a lot of junk riding and make training more efficient, with better (bigger) improvements. the training zones i use are http://www.cyclingnews.com/fitness/?id=powerstern
out of the current crop of power meters i prefer the Power Tap, as it requires no calibration, easier to use, slightly more accurate, very portable, and considerably cheaper. there are some disadvantages to it (and some advantages to the SRM). Either way both are great tools
ric
if it's an Amateur model it needs calibrating with a *known certified* mass about once every 4 to 6 weeks to get reliable data. This involves hanging known certified mass from the pedals, using 4 points around the crank circle on both cranks and calculating the theoretical slope and comparing it with what you have. the slope then has to be changed accordingly. there can be significant differences between each side with an Amateur model. The Pro requires less frequent calibrations.
details of the calculation can be seen here in the SRM manual: http://www.srm.de/Online_Manual/SRM_English_Manual/PMCalibrate.htm
All the data that records can be downloaded, e.g., time, distance, speed, temperature, power, HR, etc. Plugs into your PC
I use the data from various power meters to set training zones, and get the riders i coach to ride at specific training levels. this tends to cut out a lot of junk riding and make training more efficient, with better (bigger) improvements. the training zones i use are http://www.cyclingnews.com/fitness/?id=powerstern
out of the current crop of power meters i prefer the Power Tap, as it requires no calibration, easier to use, slightly more accurate, very portable, and considerably cheaper. there are some disadvantages to it (and some advantages to the SRM). Either way both are great tools
ric