Gray Triathlon / TT Bike Powermeters

For aero TT and tri setups, pedal-based and crank-based meters are often the best choice because they keep stack height low and fit cleanly with aero shoes. Models like the Favero Assioma Duo or Quarq DZero deliver +/-1-2% accuracy, which helps with steady pacing on race efforts.

Verify crank length (typically 165–175mm) and pedal compatibility—many triathletes use SPD-SL or Look Keo systems for aero shoes. Also confirm bottom bracket integration like BB30 or DUB and get cleat alignment dialed in, since poor alignment can skew power readings.

Most power meters support ANT+ and Bluetooth LE so they pair easily with head units like Garmin or Wahoo for live watt and cadence data. You’ll also see high cadence support—often up to 250 rpm—and options for single- or dual-sided measurement depending on the unit.

Expect 200–400 hours of battery life depending on the unit and whether it uses CR1/3N cells or a rechargeable lithium cell, and many models offer IPX7 waterproofing for wet races. Construction focuses on durability against crashes and vibration, with lightweight designs emphasized in pedal options.

Focus on FTP-based pacing—trained athletes often have FTPs in the 250–350 watt range—and race targets like IF of 0.90–1.05 and a VI ideally under 1.05 for steady efforts. Tools like TrainingPeaks can ingest TSS, VI, and zone data to help you hit specific race power ranges such as Z2 at roughly 80–90% of FTP.