Mountain Bike Cross-Training: 60-Minute Off-Road Session

Session Overview

A 60-minute mountain bike ride offers excellent aerobic cross-training for triathletes while engaging stabilising muscles often neglected in road cycling. It’s also genuinely fun — a great way to rekindle your love of riding when road sessions feel monotonous or when you want variety in your training week.

What You’ll Need

  • Mountain or gravel bike (hardtail or full-suspension)
  • Helmet (mandatory — more essential off-road than on)
  • Knee pads (optional for technical terrain)
  • Water and snacks for extended effort
  • Flat pedals or MTB clipless pedals

Warm-Up (10 minutes)

Ride easy on flat, non-technical terrain. Get a feel for the bike‘s handling before tackling technical sections — especially if you’re switching from a road bike. Spin gently at 75–85 rpm and test your brakes and gears before committing to any trail.

Main Set

45 minutes of trail riding at Zone 2–3 effort (RPE 3–4), mixing terrain types:

  • On climbs: stay seated as much as possible and maintain a smooth cadence — standing sprints tire you out faster on rough ground.
  • On technical sections: lower your centre of gravity, bend your elbows, look ahead of your front wheel (not at it).
  • On descents: shift your weight back, feather the brakes, and trust the tyres.
  • Include at least one 5-minute sustained climb to build leg strength.

Cool-Down (5 minutes)

Return on flat, easy terrain. After dismounting, stretch quads, hip flexors, and shoulders — your upper body works far harder on MTB than road cycling and will feel it the next day if you neglect this.

Coaching Notes

  • Mountain biking engages your core far more than road cycling — expect fatigue in unexpected places after your first session.
  • Don’t worry about power output on MTB: terrain variation makes numbers meaningless. Use RPE instead.
  • Riding skills transfer to road cycling — improved bike handling, balance, and confidence all carry over.
  • Scale up by extending to 90 minutes on more varied terrain; scale down to 30 minutes on an easier trail.
  • RPE target: 3–4, but allow spikes to 6–7 on technical climbs.

Training at your own risk. The information provided is for general guidance only and is not a substitute for professional medical advice. Please consult a doctor before starting any new exercise programme, especially if you have any pre-existing health conditions.