Complete Guide to Yangmingshan's "Wind, Zhong, Jian" Route: Power Pacing and Cold Water Pit Climbing Science for Fengguizui, Zhongshe Road, and Jiannan Road

1. Introduction and Cutting-Edge Research Background

The “Wind, Sword” route around Yangmingshan National Park is arguably the holy grail of cycling training in northern Taiwan. This classic route, linking Fengguizui, Zhongshe Road, and Jiannan Road, is called a “training card” route because it encapsulates the essence of Taiwan’s varied terrain: short steep climbs, long gradual ascents, deceptive false flats, and high-speed descents. For cyclists seeking power gains, this is not just a scenic spot but a natural laboratory with immense training-science value.

From the historical evolution of sports science, the quantitative metrics for cycling climb training have evolved from early scales and heart rate monitors to today’s power meters and dynamic barometric sensors. After the 2010s, with the proliferation of power meters from brands like SRM, Quarq, and Garmin, the coaching world adopted “Functional Threshold Power” (FTP) and “Power-to-Weight Ratio” (W/kg) as the gold standards for climbing ability. International literature post-2020 further indicates that on long climbs exceeding 6% gradient, a rider’s “Power Variability Index” (PVI) and “Pedaling Effectiveness” have a greater impact on final performance than even maximal oxygen uptake (VO₂max) alone.

While local sports science research in Taiwan started later, the increased visibility of international events like “Eastbound Wuling” and “Taiwan KOM Challenge” has gradually led to the formation of power analysis databases for the Yangmingshan routes. The uniqueness of the Wind, Sword route lies in the fact that it is not a continuous climb with a single gradient, but rather comprises three distinct climbing types: Fengguizui’s “steady long climb,” Zhongshe Road’s “constant-pace cruise climb,” and Jiannan Road’s “short, steep punch.” This terrain transition perfectly corresponds to the switching among the three major energy systems in cycling climb physiology: aerobic endurance dominance, steady-state rhythmic output, and anaerobic explosive reserve.

Furthermore, the addition of Lengshuikeng (via Pingdengli or Yangde Avenue) elevates the route’s difficulty to another level. The gradient of Lengshuikeng varies dramatically, especially the continuous switchback curves between “Taowansha” and “Juansi Waterfall,” which place extremely high demands on a rider’s “cornering exit acceleration ability” and “center-of-gravity transfer skills.” This article will construct a complete scientific guide to climbing in Yangmingshan, based on exercise physiology, biomechanics, and real-world data.

2. Core Mechanisms of Exercise Physiology and Biomechanics

2.1 The Physics Foundation of Climbing Power

During a climb, the total resistance (F_total) a rider overcomes can be broken down into four main components: rolling resistance (F_roll), aerodynamic drag (F_drag), gravitational component (F_gravity), and drivetrain friction resistance (F_drive). On climbs exceeding a 5% gradient, the gravitational component can account for over 85% of the total resistance. Its mathematical expression is:

[
F_{total} = C_{rr} \cdot m \cdot g \cdot \cos(\theta) + \frac{1}{2} \rho \cdot C_d \cdot A \cdot v^2 + m \cdot g \cdot \sin(\theta) + F_{drive}
]

Where ( m ) is the combined mass of rider and bike, ( g ) is gravitational acceleration, ( \theta ) is the gradient angle, ( \rho ) is air density, ( C_d ) is the coefficient of drag, ( A ) is the frontal area, and ( v ) is velocity. When the gradient ( \theta ) exceeds 5%, the contribution of the ( \sin(\theta) ) term rises sharply, while the aerodynamic drag term relatively diminishes due to lower speeds.

From this, the simplified formula for climbing power (P) can be derived:

[
P = m \cdot g \cdot v \cdot \sin(\theta) + P_{other}
]

This means that on steep sections, power output is linearly correlated with “total system weight” and “climbing speed.” In other words, for every 1 kilogram reduction in system weight (including bike and body weight), climbing speed can increase by approximately 1.5% to 2.5% at the same power output. This is why lightweight wheelsets and frames are far more beneficial than aerodynamic designs on the Wind, Sword route.

2.2 Dynamic Switching of Energy Systems

Ride times on the Wind, Sword route typically range between 90 and 150 minutes, making the aerobic metabolic system the dominant energy source. However, the gradient differences across the three sections force the body to repeatedly switch between the “aerobic endurance zone” (Zone 2-3) and the “tempo zone” (Zone 3-4). The physiological basis for this switching lies in:

• Aerobic System (Zone 2): Fatty acid oxidation and glycogen utilization occur in parallel, with blood lactate levels maintained below 2 mmol/L, allowing for sustained output for several hours.
• Tempo System (Zone 3-4): Glycogen is the primary fuel, and blood lactate levels rise to 4-6 mmol/L, placing the body at the edge of the “Maximal Lactate Steady State” (MLSS). Exceeding this threshold leads to hydrogen ion accumulation, impairing muscle contraction efficiency.

On sections like Zhongshe Road, with an average gradient of 5% to 6%, maintaining a steady tempo output effectively trains the enhancement of “threshold power.” In contrast, on Jiannan Road’s short, steep 10% to 15% climbs, short bursts of anaerobic power (Zone 5-6) are required, which deplete significant phosphocreatine (PCr) stores and necessitate a longer recovery period after reaching the summit.

2.3 Pedaling Efficiency and Body Position Adjustments

On climbs exceeding an 8% gradient (such as the latter part of Fengguizui and Lengshuikeng), riders must transition from seated to standing climbing. Research shows that when climbing out of the saddle, body weight is applied directly to the pedals, increasing instantaneous power output by approximately 15% to 20%, but simultaneously raising heart rate by about 5 to 10 bpm. Therefore, an effective climbing strategy should be “seated as the primary, standing as the supplement”: use the standing position on short, steep sections exceeding 10% or when needing to accelerate out of corners, and return to the seated position on long, gradual climbs to maintain heart rate stability.

Additionally, the choice of hand position affects biomechanical efficiency. When climbing, moving the hands to the hoods increases hip joint angle, helping to engage the glutes and hamstrings. An overly aggressive aero position on the drops can restrict anterior pelvic tilt, reducing the efficiency of power transfer through the pedals.

3. Key Parameter Field Testing and Comparative Analysis

3.1 Gradient and Power Demand Comparison for the Three Wind, Sword Route Sections

The following are typical data for each segment of the Wind, Sword route (based on a 70 kg rider with a total system weight of 77 kg):

3.2 Power Pacing Model for Breaking 25 Minutes on Fengguizui

According to the power-speed model, to break 25 minutes on the 6.4 km Fengguizui climb, the average speed needs to be 15.36 km/h. Based on a 6.1% average gradient, the required average power is approximately:

[
P_{avg} = (77 \times 9.81 \times 4.27 \times \sin(3.49^\circ)) / 0.98 \approx 335 \text{ watts}
]

Converted to W/kg, this is 4.79 W/kg. However, this assumes ideal conditions with no wind and a constant speed. In reality, wind speeds vary greatly between the windward and leeward sides of Fengguizui, and hairpin turns cause deceleration effects. It is recommended to target a power output between 4.2 and 4.5 W/kg, using a “variable power output” strategy to respond to terrain changes.

3.3 Pacing Recommendations for Riders of Different Weight Classes

4. Periodized Training Plans and Equipment Setup & Tuning Guide

4.1 Four-Week Specialized Training Plan for the Wind, Sword Terrain

The following plan uses “Tuesday, Thursday, Saturday” as primary training days, Sunday for long-distance aerobic riding, and Monday, Wednesday, Friday for recovery or rest.

Week 1: Terrain Adaptation and Muscular Foundation

• Tuesday: Zhongshe Road steady cruise × 3 reps, each at 85% FTP, with 10 minutes rest between. Goal is to maintain a steady cadence (90-95 rpm).
• Thursday: Jiannan Road interval training × 6 reps, each 2 minutes at maximal effort (120% FTP), recover on the descent for 5 minutes.
• Saturday: Full Fengguizui simulation ride, maintaining a steady output at 90% FTP, focusing on pacing control for the final 2 km.

Week 2: Threshold Enhancement and Tempo Transition

• Tuesday: Zhongshe Road × 4 reps, with 2 reps at 88% FTP and 2 reps at 92% FTP, with 8 minutes rest between.
• Thursday: Jiannan Road × 8 reps, each 90 seconds at maximal effort, with 4 minutes recovery. Focus on explosive power for “cornering exit acceleration.”
• Saturday: Fengguizui Time Trial (TT) simulation, aiming to complete at 4.0 W/kg, recording segment power data.

Week 3: Endurance Accumulation and Recovery Management

• Tuesday: Lengshuikeng (Pingdengli entrance) long climb × 2 reps, at a steady 80% FTP, with 15 minutes rest between.
• Thursday: Jiannan Road × 5 reps, with 3 reps at 110% FTP and 2 reps at 95% FTP, emphasizing dynamic power adjustment.
• Saturday: Full Wind, Sword route (Fengguizui → Zhongshe Road → Jiannan Road), total ride time approximately 3 hours, primarily maintaining the aerobic zone.

Week 4: Peak Tapering and Time Trial Test

• Tuesday: Zhongshe Road × 2 reps, at 90% FTP, with 10 minutes rest between.
• Thursday: Jiannan Road × 3 reps, at 105% FTP, with 6 minutes rest between.
• Saturday: Fengguizui Time Trial, aiming to achieve a sub-25 minute time. Perform carbohydrate loading 3 days prior (8-10 grams of carbohydrates per kilogram of body weight).

4.2 Equipment Setup and Gear Ratio Selection

Given the gradient characteristics of the Wind, Sword route, a compact crankset (50/34T) or super-compact crankset (46/30T) paired with an 11-32T or 11-34T cassette is recommended. On Fengguizui’s 13.8% steep sections, the gear ratio should be lower than 1:1 (e.g., 34T chainring with 32T cassette) to maintain a cadence of 70-80 rpm and avoid excessive stress on the knee joints.

For wheels, climbing-oriented aluminum rims or low-profile carbon wheels (30-40mm rim depth) are recommended to reduce rotational inertia and improve acceleration response. For every 500 grams saved in wheelset weight, approximately 12 to 15 seconds can be saved on the Fengguizui climb at its average gradient.

5. Race Nutrition, Environmental Adaptation, and Race Day Strategy

5.1 Carbohydrate Intake and Hydration Strategy

Ride times on the Wind, Sword route typically range from 2 to 3 hours, so a carbohydrate intake of 60 to 90 grams per hour is recommended. Here is a specific fueling plan:

• 2 hours before the ride: Consume 1.5 to 2 g/kg of body weight in carbohydrates (e.g., white toast with banana).
• During the ride (hourly): Carry 2 energy gels (each containing 25g carbs) and 1 energy bar (containing 40g carbs), along with an electrolyte drink (containing 30g carbs and 500mg sodium per 500ml).
• Within 30 minutes after the ride: Consume a recovery drink with a protein-to-carbohydrate ratio of 1:3 (e.g., chocolate milk) to promote glycogen resynthesis efficiency.

For hydration, given Yangmingshan’s hot and humid summers, it is recommended to consume 500 to 750ml of electrolyte drink per hour. For rides exceeding 2 hours, salt tablets should be added to replenish sodium ions and maintain proper neuromuscular function.

5.2 Strategies for Dealing with Weather and Wind

The weather in the Yangmingshan area changes dramatically, with strong winds at Fengguizui and dense fog at Lengshuikeng being common challenges. During the northeast monsoon season (October to March), gusts at the summit of Fengguizui can exceed 60 km/h. In these conditions, adopt a “low, tucked position” to reduce frontal area, and use larger gears to maintain speed, avoiding power output fluctuations caused by strong winds.

The Lengshuikeng section often experiences dense fog and low temperatures in the afternoon. It is recommended to carry a windproof vest or lightweight rain jacket. When visibility drops below 50 meters, turn on front and rear lights and reduce speed to ensure safety.

5.3 Race Pace Recommendations

• First 3 km of Fengguizui: Maintain a steady output at 85% FTP, avoiding premature glycogen depletion. This section is less steep, making it suitable for using momentum to maintain speed.
• Last 3.4 km of Fengguizui: As the gradient gradually increases, raise power output to 90% FTP. In the final 1 km, if feeling good, push the output up to 95% FTP for a finish sprint.
• Zhongshe Road: Maintain a steady cruise at 85% FTP throughout, keeping cadence between 90-95 rpm to train the aerobic threshold.
• Jiannan Road: On the steep sections, use the standing position for 30 to 45 second explosive efforts, dropping power to 70% FTP when seated to recover. Shift gears early before corners to maintain pedaling continuity.

6. Common Operational Mistakes and Scientific Myth-Busting

6.1 Myth 1: “You Should Climb Out of the Saddle the Entire Time”

Many riders believe that standing generates more power and therefore climb the whole way out of the saddle. However, research shows that heart rate is 5 to 10 bpm higher when standing compared to sitting. If used for the entire climb, this will accelerate glycogen depletion and lead to premature fatigue. The correct strategy is “seated as the primary, standing as the supplement,” using the standing position only on gradients exceeding 10%, when needing to accelerate, or when exiting corners.

6.2 Myth 2: “The Lighter the Gear Ratio, the Better”

While an overly light gear reduces strain on the knees, it leads to excessively high cadence (over 100 rpm), increasing the load on the cardiovascular system and failing to effectively train muscular strength. It is recommended to use a cadence of 80-90 rpm on Fengguizui’s long, gradual sections, which can be lowered to 70-75 rpm on Jiannan Road’s steep pitches.

6.3 Myth 3: “Higher Power Always Means Better Performance”

This is the biggest misconception. On a climb, excessively high power output (above 105% of FTP) will cause a rapid accumulation of blood lactate within 5 to 8 minutes, forcing a significant slowdown later in the climb. The correct approach is “even output, segment pacing,” targeting an average power for the entire climb rather than chasing instantaneous maximum power.

6.4 Myth 4: “You Can Completely Relax on the Descent”

The descent sections of Fengguizui and Lengshuikeng have many corners and slippery surfaces. If you completely relax on the descent, it will lead to slow reactions and poor line choice. The correct descending technique is: brake before entering the corner, pedal and accelerate immediately after exiting the corner, and keep your eyes focused on the corner exit. Also, maintain a moderate power output (about 40-50% FTP) to keep the body focused and muscles activated.

7. Expert FAQ

Q1: What is the key training for breaking 25 minutes on Fengguizui?

A: The key lies in improving “threshold power” and executing a “pacing strategy.” It is recommended to perform one 20 to 30 minute “threshold interval session” per week (at 95-100% FTP) and complete at least 2 full-length time trial simulations on Fengguizui. Additionally, reducing total system weight (including bike and body weight) is the most direct way to improve efficiency. For a 70 kg rider, for example, reducing bike weight from 8 kg to 7 kg would save approximately 20 seconds on the climb at the same power output.

Q2: What type of training is suitable for Zhongshe Road?

A: With an average gradient of about 5.4% and a stable route without sharp corners, Zhongshe Road is ideal for “tempo rides” and “threshold cruising.” It is recommended to ride continuously for 15 to 20 minutes at 85-90% FTP, repeating 2 to 3 times. This effectively improves the “Maximal Lactate Steady State” (MLSS) and trains the body to maintain a steady pedaling efficiency near the threshold.

Q3: How should I choose my gear ratio for the steep sections of Jiannan Road?

A: Jiannan Road has an average gradient of about 7.8% and a maximum gradient of 15.2%. It is recommended to use a 34T chainring with a 32T or 34T cassette cog to ensure a cadence of 70-80 rpm on the steep sections. If your cassette’s largest cog is only 28T, you should consider switching to an 11-32T or 11-34T cassette to protect your knees and maintain output continuity.

Q4: Which is harder, Lengshuikeng or the Wind, Sword route?

A: Lengshuikeng has a longer total climbing distance (about 7.8 km) but a more gradual average gradient (5.2%), making it suitable for aerobic endurance training. However, Lengshuikeng’s switchback corners and occasional dense fog demand higher bike-handling skills and mental fortitude. The Wind, Sword route, on the other hand, is known for its “three-stage gear changes,” demanding a greater ability to dynamically adjust power output. It is recommended to complete the Wind, Sword route first before tackling Lengshuikeng, progressing gradually to improve overall capability.

Q5: How should I deal with sudden rain showers and low temperatures when riding in Yangmingshan?

A: The weather in Yangmingshan changes very quickly. Be sure to check the weather forecast before heading out and carry a windproof vest and lightweight rain jacket. If you encounter a rain shower during your ride, reduce speed and avoid riding over manhole covers and painted road markings. In cold conditions, wear a base layer that wicks sweat and an insulating mid-layer to prevent your core temperature from dropping too low. If the rain becomes too heavy or fog reduces visibility significantly, immediately find a safe place to take shelter and do not push on.