Workout Description
For Time
15-12-9-6
>> Calories Assault Bike
>> Thrusters @ 42.5kg
>> C2B Pull-Ups
Why This Workout Is Hard
This workout combines moderate loading (42.5kg thrusters are light-moderate), high skill demands (C2B pull-ups under fatigue), and continuous intensity with minimal rest. The descending rep scheme (15-12-9-6) creates sustained work across three demanding movements with cumulative fatigue. Assault bike calories demand cardiovascular output, thrusters tax legs and shoulders, and C2B pull-ups require grip strength when already fatigued. The lack of built-in recovery and movement interference (grip fatigue from bike affecting pull-ups) pushes this into Hard territory for average athletes.
Benchmark Times for Bike Life
- Elite: <3:00
- Advanced: 3:38-4:30
- Intermediate: 5:45-7:30
- Beginner: >22:00
Training Focus
This workout develops the following fitness attributes:
- Stamina (8/10): Descending rep scheme (15-12-9-6) of thrusters and pull-ups tests muscular endurance. Combined with bike calories, athletes must sustain output across multiple movement patterns and fatigue states.
- Endurance (7/10): Assault bike calories demand sustained cardiovascular output across descending rounds. The moderate duration and continuous aerobic demand create solid endurance stimulus without reaching marathon-level intensity.
- Speed (7/10): For-time format demands quick transitions and consistent cycling pace on the bike. Athletes must balance speed with sustainability across all three movements to minimize total time.
- Flexibility (6/10): Thrusters demand shoulder mobility and hip flexibility. C2B pull-ups require shoulder and thoracic mobility. Assault bike requires basic hip and ankle range of motion.
- Power (6/10): Thrusters are inherently explosive movements requiring power production. However, descending reps and accumulated fatigue reduce peak power output as the workout progresses.
- Strength (5/10): 42.5kg thrusters provide moderate load—challenging but not maximal. C2B pull-ups require relative strength, but the rep ranges and fatigue context emphasize endurance over pure strength.
Movements
- Air Bike
- Thruster
- Chest-to-Bar Pull-Up
Scaling Options
Weight: Reduce thrusters to 30-35kg for intermediate athletes, or 20-25kg for newer athletes. Movement substitutions: Replace C2B pull-ups with standard kipping pull-ups, banded pull-ups, or ring rows depending on pulling strength. For the bike, substitute rowing calories at the same numbers or reduce calories by 20-25% if the bike is a significant limiter. Volume: Consider a 12-9-6-3 rep scheme for athletes who struggle with volume at Rx loads, or reduce the round of 15 to 10 to keep the workout in the intended time domain.
Scaling Explanation
Scale if you cannot perform at least 8-10 unbroken thrusters at the prescribed weight when fresh, or if you have fewer than 5 unbroken C2B pull-ups. The goal is to keep moving with minimal rest — if you're grinding singles on thrusters or missing the C2B standard repeatedly, the stimulus is lost and injury risk rises. Prioritise intensity and movement quality over Rx status. Target completion time is 8-14 minutes; if you're projected to go beyond 16 minutes, reduce load or volume to preserve the sprint nature of the workout.
Intended Stimulus
This is a sprint-to-moderate effort lasting around 8-15 minutes for most athletes. The descending rep scheme creates a psychological and physical relief valve — each round feels more manageable, but the accumulated fatigue from the bike and thrusters will make the C2B pull-ups increasingly brutal. The primary challenge is a combination of strength-endurance and conditioning: 42.5kg thrusters demand real leg and shoulder strength, while C2B pull-ups require both skill and upper body pulling capacity. Expect burning lungs from the bike feeding directly into heavy barbell cycling — this is a full-body tax with nowhere to hide.
Coach Insight
The bike is your warm-up for the thrusters — don't bury yourself on calories. Aim for a hard but controlled pace, leaving enough in the tank to transition quickly to the bar. On thrusters at 42.5kg, the round of 15 is where most athletes blow up — consider breaking early into sets of 8-7 or 5-5-5 rather than grinding to failure. Use the squat clean into the first thruster to save your press. For C2B pull-ups, aggressive hip drive and a strong pull to the chest is key — if your kip is sloppy, you'll miss the standard and waste reps. Transitions between movements should be sharp — every second on the floor between bike and bar adds up across four rounds. In the final round of 6, push hard — this is where you leave everything on the floor.
Benchmark Notes
The primary limiters are thruster cycling at 42.5kg under fatigue and C2B pull-up skill/grip endurance; the assault bike calories add cardiovascular tax before each barbell/gymnastics set. L5 (~8:30) breaks thrusters into 2-3 sets each round and does C2B in small clusters with brief rests.
Modality Profile
Air Bike is Monostructural (M), Thruster is Weightlifting (W), and Chest-to-Bar Pull-Up is Gymnastics (G). Three unique movements across three modalities = 33/33/34 distribution.