SRM POWERMETERS/COMPUTERS


2012 SRM SRAM S975 Powermeter System

  • Item: SRM812
  • $3,845.00   $2059.00 - $2884.00
quantity

Even armchair fans know that Lance Armstrong has been using SRM PowerMeters for years. And now, as a financial investor in SRAM, it's pretty obvious that he'd be using the SRM SRAM 975 PowerMeter System. It's basically a SRAM Red level crankset. The only difference from a standard Red crank being that it's made with the crankarm and spider as two separate pieces, with the latter housing the SRM internals. Now you can have your fully SRAM equipped race bike and gather critical power data no matter what wheelset you choose for race day.

The crankarms are made of unidirectional carbon fiber for supreme stiffness. After all, what good is monitoring and improving your power output if it doesn't get to the back wheel? The Red level chainrings use SRAM's Powerglide shift technology and a slick anodized coating to ensure smooth shifting performance in the heat of battle out on the road.

The crankset comes with a small frame-mounted bracket impregnated with a magnet. For those of you familiar with the wired generation of the SRM, you'll note that it looks an awful lot like the head of a sensor cable. The purpose of this magnet is to read cadence, and you must install it -- even if you don't care about cadence. Why? It's because Power = Torque x Cadence, so with no cadence reading you get no power reading.

The SRM SRAM 975 Wireless PowerMeter System comes in the crank length of your choosing -- 170mm, 172.5mm, or 175mm, and it will have a standard 39/53 chainring configuration. The SRM system employs the ANT+ 2.4ghz wireless transmission technology. So not only will it free you from the distraction of having wires all over your bike, but you'll have the freedom to use any ANT+ compatible CPU/receiver. We offer four CPU options that will sync perfectly with your crank to accurately track your power data:

  • The SRM PowerControl 7 is the latest evolution of the benchmark SRM PowerControl. There's a reason that more Pro cyclists use SRM power equipment than any other -- absolute reliability. The PowerControl 7 offers a new button configuration, under the display, that allows the unit to be narrower than older versions. This makes it ideal for use between aero bars. At any given time you'll be able to read six different bits of information on the new display. And like the PowerControl VI, it reads altitude and temperature to correlate along with your power, speed, distance, and kilojoule data. It also has a motion sensing start/stop function. The PowerControl 7 is downloadable via an integrated mini-USB interface and comes with an oversized handlebar mount, a Suunto speed pod, and a Suunto heart rate chest transmitter strap. It can be used with the included SRMWin software and also with Training Peaks, WKO+, and other power software.
  • The Garmin Edge 800 GPS is for those addicted to touchscreen technology. It has nearly all of the same functions as their Edge 705, but it comes with the convenience and ease of a waterproof, rugged 2.6" touchscreen. The Edge 800 is fully GPS enabled. The best part is that data goes two ways with the 800 -- you can upload maps and routes from your PC or Mac into the Edge 800, and you can download the routes that you've just ridden. And like the 705, the Edge 800 is ANT+ compatible. This means that the 800 can read information from powermeters, heart rate monitors, and speed/cadence sensors so that you can fine tune, monitor, and analyze each and every ride. With the 800, you can enable Virtual Partner, a rider you create, who exists only in the Garmin device and rides at your goal parameters. Besides ANT+ and GPS capability, it has a barometric altimeter, thermometer, and automatic time zone adjustment. The built-in base maps will get you started, and an included data card is preloaded with City Navigator so you'll have detailed maps for all of the U.S and Puerto Rico. You can add micro SD cards for extra storage or for finer map detail with streets and/or topos. It also includes a premium heart rate strap and a speed/cadence sensor. The 3.5 oz. Edge 800 has a 1/4 turn mount that installs without tools on the handlebars or stem. It has a rechargeable Li-ion battery that gives the unit 15 hours of life before you'll have to plug it in and charge it with the included cable. The USB download cable is also included along with a quick start manual.
  • The Garmin Edge 500 is a GPS-enabled bike computer that allows you to program up to eight metrics of data on a display with two separate screens. With two screens and eight metrics per screen, you'll have up to 16 lines of data at your fingertips. It has the same metrics as the Garmin Edge 705, just without the mapping and virtual partner features of that unit, which makes the 500 both smaller and lighter. The GPS comes in handy when you want to see where you've ridden afterwards. The Garmin 500 comes with a bike mount, speed/cadence sensor, heart rate monitor strap, instruction booklet, owner's manual on CD, charger, upload cable, and software on CD. You can use Garmin Connect on the web as well and you can upload ride data into TrainingPeaks, WKO+, and other power software.
  • The CycleOps Joule 2.0 is the first cycling CPU made strictly with powermeters in mind. Not only does it have a fully customizable dashboard that can show up to eight lines of data at one time, it also has a reports mode and an activities mode. Reports means you can recall data from past rides as well as historic data averages on basic things like your highest power for a given time as well as compare normalized power and surges. In activities, you can program scripted workouts. The Joule comes with a speed sensor, heart rate monitor strap, instruction booklet, upload cable, charger, and software CD. You can use the included software, TrainingPeaks, WKO+, and other power software.