12 Week Base

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12 Week Base


Mitchell Sides

All plans by this Coach


12 Weeks

Typical Week

5 Bike, 2 Day Off

Longest Workout

3:00 hrs

Plan Specs

cycling intermediate advanced power based base period

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Includes Structured Workouts

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This plan is designed to take riders from a low to moderate amount of fitness up to a transition or build phase. The plan builds time at steady state, tempo, and FTP to improve primarily aerobic fitness.

The plan is in 3 cycles of 4 weeks each, which each include 1 rest week and 3 weeks where duration of tempo, sweet spot/steady state, and threshold intervals progress.

There is a little VO2max work thrown in as well.


Training Load By Week
Training Load By Week
Average Weekly Training Hours: 08:36

Mitchell Sides

Source Endurance

Our Mission is to facilitate the accomplishment of each athletic, performance and competitive goal for every client. We do this by offering highly effective training and nutrition advice.

As part of the Source Endurance family, you are the priority. We work with clients across the skill continuum in sport and athletics. First time competitors and experienced veterans are given the same service as clients competing internationally.

Sample Day 1

2x20min FTP Test

This serves as an excellent workout as well as an FTP test. Even if the result isn't stellar, it's still worth doing. Don't worry about any drops or tiny improvements.
The first interval is a warm-up. Keep the power steady and consistent here to make sure you're not cooking yourself for the real test.

Sample Day 2


Sample Day 4

Low Cadence 5x5min

5x5min @55-65rpm; RBI 5min @90+ rpm
Last minute of each HARD @55-65rpm
Power on intervals:

Notes: Make sure the rest period is 95+ rpm. You can ride as easy or as hard as you want for the rest period.

Sample Day 5

Endurance Ride

Keep it easy.

Sample Day 6

Endurance, Steady State

Can be substituted for a longer ride of 4+ hours, or a group ride.

Additionally, this workout's rest period can be dropped to half the working interval in order to cut the total duration to ~2 hours.

The rest of the ride should be easy, at or under 70% of FTP.
Intervals on 20min
6x7min @steady state; RBI 13min

Sample Day 8

Steady State 10x5min

Sample Day 9


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