SRAM team James Meyer and Nate Keck broke the Leadville tandem course record this weekend, setting a new mark at 7:46:04 and knocking 28 minutes off the 8:14:11 ride set by Roca Roja Rollers in 2018.
Breaking records and tackling 103 miles on a bicycle built for two requires strategy, communication, and a bike that is up to the task. Meyer and Keck chose Ventana’s El Conquistador de Montañas to power through the grueling climbs as they raced to the finish line.
Scroll through the gallery below for equipment breakdown and ride analysis.
The team averaged a combined 380 watts for the day. Leadville has 5 major climbs. Keeping the effort even for the full day was key. Average power on the climbs: -St. Kevins: 586 -Sugarloaf: 519 -Columbine: 464 -Powerline: 435 -Carter Summit: 482 Final effort was Captain at 77kg, 230 NP, 3.0 W/kg and Stoker at 68kg, 210 NP, 3.1 W/kg.
MagicZero is a new algorithm from Quarq that automatically sets the zero-offset of your power meter as you ride. The goal of MagicZero is to let the riders forget that power meter Zero-offsets even exist. Zero-offset management by the user is an unneeded complexity that can be solved with thoughtful engineering.
MagicZero: Learning As You Ride
MagicZero works by continuously monitoring the torque signals from the strain gages as you ride. When the torque signals meet specific criteria for a period of time, a torque snapshot is recorded. Over time, these snapshots accumulate. When enough snapshots within a given tolerance are collected, then a new Zero-offset is computed and set in the power meter.
MagicZero allows the Zero-offset to be automatically managed by the power meter without any specific user actions. Typically, the MagicZero measurements occur when the bike is stationary, coasting, or slowly backpedaling. But as noted above, the criteria is designed to reject snapshots incongruent with recent observations. The MagicZero algorithm is intended to be continuously operating and reaching stable convergence on the correct Zero-offset. If at any point a misleading Zero-offset is applied, the algorithm is designed to self-correct without user intervention.
Powering Rides For Any Condition
MagicZero was developed over thousands of riding miles, in all kinds of disciplines; from Road to Gravel to Mountain Bike to Fat Bikes, going from 70°F houses to -4° South Dakota winters. We are not aware of any specific environments where MagicZero is inappropriate for use. However, it is still possible to turn off MagicZero and only use Manual Zero from the head unit. To do this, turn off AutoZero on your power meter from the SRAM AXS App.
The number of power meters used by athletes at the IRONMAN triathlon in Kona has now reached 59% of the field. These athletes know the training and devotion needed to prepare for this race and the races leading to Kona. To be their top power meter choice for 6 years running is a great honor. We strive to do our part with continuous improvements of the products and providing the service these athletes deserve.
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