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RideThreshold

Criss-Cross 2 × 20

2 × 20 min alternating 2 min under / 1 min over FTP

Time
1h17
Hard
42:00
in zones 4–5
Difficulty
Very hardDifficulty 4 of 5 — Very hard

What we typed

Warm up 15 min building from 50% to 75% FTP. Block: 7 × (2 min at 90–95% FTP, 1 min at 105–110% FTP), then 5 min easy at 50% FTP. Do the block twice. Cool down 10 min at 50% FTP.

Fit File Forge built the steps below from these words — the same steps your watch gets.

Describe your own

The session

8 steps

Warm up

Build from 50% to 75% FTP.

15 min50–75% FTPZ2
7×2 min

Rep

2 min90–95% FTPZ4

Rep

1 min105–110% FTPZ5

Easy

5 min49–52% FTPZ1
7×2 min

Rep

2 min90–95% FTPZ4

Rep

1 min105–110% FTPZ5

Easy

5 min49–52% FTPZ1

Cool down

10 min49–52% FTPZ1

Targets

Set as a share of your FTP. Your watch applies it to the FTP in its own settings, so it keeps up as that changes.

50–75% FTP
90–95% FTP
105–110% FTP
49–52% FTP

Scaled version

2 × 12 minutes.

Build the scaled version in Forge

About this session

What it trains

Threshold with built-in surges — 2 × 20 that feels like a race.

Who it's for

Riders comfortable with steady 2 × 20.

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