Challenge Bike Workout #3: Descending Intervals

This 90-minute session from bike coach Matt Bottrill is the third in our series of four cycling workouts that are designed to lead you to your best 40K time trial, which will be one part of the virtual Olympic distance “triathlon” challenge (a 15-minute strength circuit, 40K ride, 10K run) at the end of the month. 

Bottrill is a world-renowned bike guru, cyclist, and coach who works with pro triathletes such as Tim O’Donnell, Tim Don, Matt Hanson, and Justin Metzler. He also works with the Lotto-Soudal pro cycling team as time trial bike fitter and planner. 

Throughout these workouts, Bottrill uses Levels 1 through 7 (listed as L1, L2, etc.) to determine effort or RPE. If you prefer to train by power or heart-rate then he has those listed too. See below (beneath the workout) for a full explanation of levels and their respective heart-rates and wattages. 

This third workout is, by Bottrill’s own admission “a tough one,” so be prepared to work hard and pedal well. He said: “This session is going to be really tough mentally, so you need to go to that special place of wanting to suffer to get the rewards that will come from this type of training.”

Bottrill advises always using the cadence that gives you the best power transfer, as well as staying in the aero position for all of the Level 5 efforts.

The good news is that the intervals get shorter as you progress through the workout—from four minutes down to one minute at maximal effort—and then you’ll wrap it up with a 15-minute high cadence recovery cooldown. 

Triathlete Challenge: At Home Bike Workout #3

Warm-up

15 min. @ L1, high cadence 90-100+ RPM 

Main Set

Do in aero position using cadence that gives best power transfer

4 x 4 min. @ L5 with 4 min. @ L1/2 recovery between each

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3 x 3 min. @ L5 with 3 min. @ L1/2 recovery between each

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2 x 2 min. @ L5 with 2 min. @ L1/2 recovery between each

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1 x 1 min. Maximal effort

Cooldown

15 min. high cadence recovery

Explanation of Exertion Levels