Dyfi Enduro
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EnduroHard

Dyfi Enduro

Classic ~50km Welsh MTB enduro/marathon at Machynlleth (~2,000m climbing), grinding long fire-road climbs to earn technical natural descents on the Mach 1/2/3 trails. Skill and repeatable climbing decide it, not FTP. Sells out fast. Next date ~2027-05-02 is approximate.

Date
2 May 2027
Location
Machynlleth, Dyfi Forest, mid Wales
Category
Enduro — solo
Difficulty
Hard

Not a modern timed-stage enduro. This is enduro in the old sense: one big loop through the Dyfi Forest at Machynlleth, grinding long fire-road climbs to earn the famous natural Mach descents. Early May, mid Wales.

The short distance is a trap. The climbs aren't really what catch people out, it's the descents: rocky, rooty, natural Welsh singletrack that punishes tired arms and rewards nerve.

Skill decides this day, not watts. A rider fit enough to climb but shaky on the tech loses time and takes risks. Fitness gets you up, handling gets you down safe and fast.

Who this suits

Is Dyfi Enduro for you?

  • Riders who love raw natural trails over trail-centre flow. This is rough, rocky, rooty ground, not manicured berms.
  • Climbers who can go again. The loop stacks several long fire-road climbs, so it rewards riders who pace the first one and keep coming back.
  • Confident descenders. Handling swings finish times more than fitness here, so time on technical ground pays off.
  • Riders on a capable trail bike. A 120 to 150mm bike with a dropper suits this far better than an XC hardtail.
Training plan

Training plan for Dyfi Enduro

A training plan for Dyfi Enduro isn't a generic base build. Beina reads the event's exact demands, looks at your specific profile and the time you actually have, and maps a highly adapted plan to the start line.

01 · Race demands
A skill day disguised as a fitness day
  • Repeated long fire-road grinds: pace the first climb or pay for it on the rest.
  • Natural Welsh descents that are rocky, rooty, technical and physical to ride well.
  • Two systems fatigue at once: legs on the climbs, arms and grip on the descents.
  • The back third is the crash-risk zone, descending on tired arms and fading focus.
02 · Key sessions
What your weeks look like
  • Fire-road climbing intervals: 4x8 to 10min on a real climb for repeatable climbing power.
  • Natural-trail skills every single week: 60 to 120min on rocky, rooty descents.
  • Skills under fatigue: 30 to 45min descending after a 2hr ride, the race-day tired-arm state.
  • A long climb-and-descend ride building toward 3.5 to 4hr with 1,500m+ of climbing.
03 · Shaped around you
Not a generic schedule
  • Built from your current fitness and the time you actually have
  • Adapts every week as Beina learns how you respond
  • Syncs your sessions straight to Garmin and Wahoo
  • One clear next session, never a wall of spreadsheet
274 days to the start line
Sign up. Start training.
Get your Dyfi Enduro plan