June 24, 2025

CTT Time Trials for Triathletes: UK Training Guide 2025

For triathletes looking to develop their bike leg, UK Cycling Time Trials (CTT) events offer a unique and underutilized opportunity. These solo efforts against the clock might not have the fanfare of a Ironman event but they deliver specific, performance focused benefits that directly transfer to multisport racing.

1. Race Specific Pacing Practice

Time trials are all about pacing the cornerstone of a successful triathlon bike leg. The ability to manage your effort across a set distance, without drafting or tactics, mirrors what’s required in non-drafting triathlon events. CTT races let you practice and develop your pacing instincts using power, heart rate and feel.

2. Aerodynamic Testing in Real Conditions

Your aero position matters most at race pace not indoors. Time trials give you a chance to test helmets, suits, hydration setups, and positions in race conditions with minimal external variables. Time trials provide a brilliant opportunity to have a full test run through of race equipment in the lead up to your goal event.

3. Low-Cost, High-Quality Racing

CTT events are typically very affordable (around £10–£15 per entry), well organised, and happen all over the UK. There are races for every level from  “Club 10’s” 1 50s and 100s for long-course athletes.

4. Accessible Benchmarks & Progress Tracking

Many CTT courses are well known and consistently used, which gives you the opportunity to track your progress throughout a season or year-on-year. You’ll know exactly how your position, fitness, or pacing tweaks translate into real-world speed.

5. Improved Functional Threshold Power (FTP)

Training and racing at or near threshold is essential for bike fitness. Time trials give you an effective, event-based way to target FTP development, with the added motivation of competition and official results.

6. Safe, Controlled Environments

CTT races typically take place on carefully vetted routes with clear signage and marshals. While no race is without risk, the controlled, solo format makes them a relatively safe way to push your limits.

Whether you're targeting a sprint triathlon or a full Ironman, incorporating CTT time trials into your calendar is a smart, specific, and accessible way to boost your bike performance.

Optimal Endurance is a CTT registered club and you can find all Cycling Time Trial events on their website;

https://www.cyclingtimetrials.org.uk

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