Westward Wuling Rendiguan Section (0-16K) In-Depth Analysis: The Right Way to Ride the Warm-Up Stretch

The 16 kilometers from Puli to Rendiguan, with an average gradient of 2.1%, is the section of the Wuling route that least “feels like a climb.” For this very reason, it is where mistakes are most easily made.

Geography

Starting Point: Puli (Elevation 420m)

• Central Nantou County
• Basin terrain, hot in summer
• Full supply options available (7-11, FamilyMart, breakfast shops)
• Approximately 3 km from the first traffic light to leaving the urban area

Major Waypoints

• Ailan Village (3 km): Residential area, connecting roads
• Nancun Village (7 km): Beginning of the mountain section
• Mei River (10 km): Road alongside the river
• Rendiguan (16 km): Canyon scenery, elevation 830m

Gradient Analysis

Kilometer Markers

• 0-3 km: Flat road (urban area)
• 3-8 km: Gentle incline (1-2%)
• 8-12 km: Changing gradient (2-3%)
• 12-16 km: Starting to get steeper (3-4%)

Total Elevation Change

• Start: 420m
• Finish: 830m
• Gain: 410m
• Average gradient: 2.1% (over total distance)

Mindset: This Is Not a Climb

Misconception 1: “This section is easy, I’ll ride faster”

Reality: This section is a warm-up. If you ride it at 90% of FTP, you’ll need to hold 65% of FTP for the next 40K just to survive.

Misconception 2: “I’ll sprint with the group”

Reality: The group may contain strong riders. You’re not following for the draft—it’s just adrenaline in the moment. Once you catch them, you’ll blow up.

Misconception 3: “I feel good today, I’ll finish sooner”

Reality: There is no “finishing early” on Wuling. The 3 minutes you save now, Cuifeng will make you pay back 15.

The Right Mindset

Keywords: Conserve energy, Warm up, Stay steady

• Think of these 16K as the warm-up time after you start your car
• Heart rate gradually rises from rest to Z2
• Power gradually rises from 120W to 180W
• Breathing rhythm: natural, not gasping

Pacing Recommendations

Heart Rate

• 0-5 km: Z1-Z2 boundary (65-72% HRmax)
• 5-10 km: Z2 (72-76% HRmax)
• 10-16 km: Upper Z2 (75-78% HRmax)

Power (using FTP 200W as an example)

• 0-5 km: 120-140W (60-70% FTP)
• 5-10 km: 140-160W (70-80% FTP)
• 10-16 km: 150-165W (75-82% FTP)

Speed

• 0-5 km: 25-30 km/h (flat road)
• 5-10 km: 22-25 km/h (gentle incline)
• 10-16 km: 18-22 km/h (changing gradient)

Nutrition Timing

0 km (Start)

• 15 minutes before departure: 200ml sports drink
• 5 minutes before departure: 1 energy gel (optional)

5 km (Warm-up complete)

• One small sip of water (100ml)
• Breathing steady, begin riding at a set rhythm

10 km

• 150ml sports drink
• 1/2 energy gel (if you haven’t eaten in the past 2 hours)

16 km (Rendiguan)

• Stop for 30 seconds to adjust (optional)
• 1 energy gel (prepare for entering Wushe)
• Top up water (if needed)

Equipment Adjustments

At Departure

• Jersey zipper pulled down to 80% (for ventilation)
• Sunglasses (regardless of sun or cloud)
• Sunscreen already applied (to prevent sunburn)

After 5 km (Warmed up)

• May pull zipper down to 50% (if body temperature is high)
• Confirm windbreaker is in place in pocket

After 16 km (Rendiguan)

• Assess temperature changes
• If body temperature drops, pull zipper back up
• No need to add leg warmers immediately (wait until after Wushe)

Common Hazards

1. Puli Urban Traffic

• Heavy traffic between 7-8 AM
• Students and commuters intermingled
• Many traffic lights
• Solution: Traffic control is in place during race events; for self-supported rides, you must be patient

2. Motorcycles Overtaking

• Puli roads are not wide
• Motorcycles overtaking from the left is common
• Solution: Ride on the right, avoid weaving

3. Dogs Chasing

• May appear in rural mountain areas
• Solution: Accelerate immediately or get off the bike if encountered

4. Road Surface Potholes

• Construction remnants possible between 8-12 km
• Solution: Look 20m ahead

5. Heavy Vehicles on Ascents and Descents

• Large trucks have blind spots
• Solution: Do not overtake, maintain distance

Mental Rhythm

Breathing Control

• Inhale 2 seconds, exhale 2 seconds (4-second cycle)
• Inhale through nose, exhale through mouth is recommended
• If gasping = reduce power

Mindset

• Imagine you are a long-distance runner in the first kilometer of the race
• Rhythm, rhythm, rhythm
• Don’t rush, don’t follow, don’t panic

Music (if used)

• Tempo BPM 80-100 (moderate speed)
• Avoid overly intense tracks (to avoid adrenaline-driven riding)
• Options: light music, soft rock, Lo-fi

Listen to Your Body

Green Light (Continue)

• Breathing smooth
• Legs feel easy
• Can hold a conversation

Yellow Light (Caution)

• Breathing slightly labored
• Legs starting to feel it
• Speech becomes intermittent
• Action: Reduce power by 10-15W

Red Light (Alert)

• Breathing rapid
• Legs heavy
• Heart rate > Z3
• Action: Immediately reduce power significantly, or even rest for 1 minute

Milestones for Completing This Section

How You Should Feel at 16 km

• Heart rate at upper Z2 (75-78%)
• Body warm but not overheated
• First bottle still has 500ml or more remaining
• Good mental state
• Full of confidence

Warning Signs (Be Alert)

• Heart rate already at Z4 (> 85%)
• Sweating excessively
• Legs starting to ache
• First bottle already below 300ml
• Breathing rapid

If you experience warning signs: Abandon your target time and switch to finishing safely.

Conclusion

The first 16K of Wuling may seem uneventful, but it is the most important 45 minutes of the entire event. Use the correct rhythm, mindset, and nutrition to prepare for the 40K ahead. Remember: Wuling is a marathon, not a sprint. You will see others surge ahead and pass you on this stretch — that’s fine; there’s a good chance you’ll pass them at Cuifeng.

Related Reading

• Complete Analysis of Each Westward Wuling Section: Detailed 55K Road Guide from Puli to Wuling
• Westward Wuling Interval Pacing Strategy: Full Intensity Guide for Rendiguan, Wushe, and Cuifeng
• Full 52.2km Wuling Segment Pacing Strategy: A Rhythm Map from Puli to the Roof Ridge
• The Art of Pacing in Climbing Races: Perfect Strategy for Wuling Cup and Eastward Wuling