Build Muscle. Stay Athletic. Train Diesel. Performance-first training for strength, power, conditioning, and a physique that performs. Diesel TREIGN is a performance-driven training system built for lifters who want real strength, real conditioning, and muscle that actually works.This is not random training it's intentional TREIGNING.
You’ll build-Dense, functional muscle, strength and explosive power, conditioning that transfers to real life and sport, a body that looks capable — because it is.
Form follows function. Function delivers results.
Built by Experience Diesel TREIGN is backed by, 20+ years of training experience, 10+ years coaching high performers at elite private facilities across the U.S. Based on Proven principles from strength & conditioning, athletics, and applied movement science. Every session has a reason. Every block has a goal. Nothing is wasted.
How It Works:
Who this IS for: Diesel TREIGN is for: -Former or current athletes -Lifters who want to stay fast, strong, and capable -Bodybuilders who want their physique to perform
If you’ve trained hard before, this will feel familiar — but sharpened and fresh
Who This Is NOT For This program is not for: -Beginners looking for an “easy” plan -People chasing shortcuts or quick fixes
The Outcome You don’t just look strong. You move strong. You perform strong. This is TREIGNING. Results-driven. Performance-built. Diesel-level.
Commit to the process, train with intent!
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Let’s get to work.Build Muscle. Stay Athletic. Train Diesel. Performance-first training for strength, power, conditioning, and a physique that performs.
Reinhard Nel
I’ve been on this training journey for over 20 years—and I’m still just as passionate today. By combining deep knowledge with real-world experience coaching clients, my goal is to help you get the most out of your training—maximizing results while keeping it fun, challenging, and sustainable for the long haul. Start your TREIGNING journey today!
We TREIGN to dominate our fitness goals in comprehensive fashion. Let's get it!
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Shivaan G
Executive
Verified Athlete"I have worked with some truly brilliant coaches, but I have never found a combination and approach as amazing as Rein’s. He has helped me push beyond my own limitations and I look forward to being a part of team TREIGNING for a long time to come."
Adina W
Neuroradiologist
Verified Athlete"Rein is very professional, knowledgeable and clearly passionate about helping his clients reach higher levels of performance, through thoughtful programming and careful attention to each individual’s goals. I have recommended Rein to friends and anyone who wants to show up to life stronger."
Rachel B
Lawyer
Verified Athlete"Rein is not your typical trainer. I have never had a trainer who is more passionate and knowledgeable about fitness, health and well being. His talent, attitude, dedication and drive are unmatched."
When you join a team you’re getting more than programming, you’re joining an online community.
DIESEL TREIGNđźš‚
DIESEL TREIGNđźš‚
DIESEL TREIGNđźš‚