Saucony Endorphin Speed 4 S20940-30 Men's Running Shoes Nylon Plate Race Fast Training White Orange

LAST UNIT AVAILABLE: Only 1 size 41 shoe in stock - Saucony Endorphin Speed 4 S20940-30 white-orange with nylon plate.

Saucony Endorphin Speed 4 Technical Specifications

• Product Code: S20940-30 / EAN: 195020822159
• Plate: Nylon SPEEDROLL (propulsion + flexibility, 90% carbon efficiency)
• Midsole: PWRRUN PB ultra-light responsive foam
• Upper: Engineered breathable racing mesh
• Outsole: XT-900 high traction asphalt rubber
• Drop: 8mm (fast heel-to-forefoot transition)
• Weight: 212g size 42 (ultra-light cushioned category)
• Estimated Durability: 500-700 km (nylon plate more durable than carbon)
• Recommended Paces: 4:00-5:30 min/km
• Available Sizes: 41 (1u), 42-46 sold out

Nylon SPEEDROLL Plate: Accessible Propulsion

The nylon SPEEDROLL plate offers fluid propulsion and superior energy return with 90% efficiency of carbon plates but greater flexibility and comfort. Rocker geometry promotes explosive heel-to-toe transitions, ideal for tempo runs, intervals, progressive runs, and 10K-21K races. 35% lower price than carbon shoes with similar performance over short-medium distances.

Design and Fit

The Saucony Endorphin Speed 4 represents the most versatile running shoe for fast training and races. The PWRRUN PB foam midsole (same material as Endorphin Pro carbon) offers ultra-light cushioning with 40% higher energy return compared to traditional foams. The engineered mesh upper combines optimal ventilation with targeted racing support.

Fit: Racing snug true to size, choose your usual size. Snug but not compressive fit. Brand comparison: similar to Nike Vaporfly (same size), slightly narrower than Hoka Mach (less forefoot volume).

Anti-Use Case: When NOT to Buy

❌ Not suitable for: Daily easy runs (too reactive, need a cushioned shoe like Ride/Triumph), ultra-marathons over 30km (need more cushioning), runners with moderate-severe pronation (need stability), trail running (need a specific outsole), runners over 85kg for marathons (need more protection), those looking for an all-purpose shoe (these are speed-specific).

Competitor Comparison

Saucony Speed 4 vs Endorphin Pro 4 carbon: Speed is more versatile and durable (500-700km vs 300-400km), Pro is faster for pure racing, Speed is 35% lower in price. Vs Nike Vaporfly carbon: Speed price €135 vs €250+ Vaporfly, similar performance for 10K-21K, Vaporfly only superior for marathons. Vs Asics Magic Speed 4: Speed is more reactive and lighter, Magic is more stable.

Recommended Use and Training Strategy

Ideal for: Tempo runs 10-15km at 4:00-5:30 min/km paces, 1000-3000m intervals, progressive runs, fartlek, 10K-21K races, quality workouts 2-3 times/week, runners 60-80kg looking for a fast shoe without a €200+ carbon investment.

Strategy: Use Speed 4 for quality workouts (30% mileage) + a cushioned shoe like Saucony Ride 18 or Triumph for easy runs and recovery (70% mileage). Alternating prolongs the life of the nylon plate and prevents injuries.

Maintenance and Care

• Hand wash with cold water and mild soap, never machine wash
• Natural drying at room temperature, avoid heat sources that damage PWRRUN PB
• Remove insole after each use for complete drying
• Alternate with another shoe to extend the life of the nylon plate
• Store in a cool, dry place away from direct sunlight

Why Choose Saucony Endorphin Speed 4

Saucony, an American brand with over 125 years of running experience, combines technological innovation with unbeatable value for money. Speed 4 offers 90% of the performance of €200+ carbon shoes at an accessible price of €135. The nylon SPEEDROLL plate guarantees fluid propulsion without the rigidity of carbon, ideal for runners who train for speed 2-3 times/week. Durability of 500-700km is superior to carbon (300-400km).

FAQ - Frequently Asked Questions

Q: Can I use them for a marathon?
A: Yes, if you are an experienced runner under 75kg with a pace of 4:00-4:30 min/km. For runners over 75kg or slower paces, we recommend Endorphin Pro carbon or a more cushioned shoe.

Q: How long do they last compared to carbon shoes?
A: 500-700km vs 300-400km for carbon. The nylon plate is more durable and retains its properties for longer.

Q: Can I use them for daily easy runs?
A: No, they are too reactive. For easy runs, use Saucony Ride 18, Triumph, or Kinvara. Speed 4 is only for quality workouts and races.

Q: Difference with Endorphin Pro 4 carbon?
A: Speed 4 is more versatile (training + races), Pro 4 is specific for pure racing. Speed lasts longer, Pro is slightly faster for marathons. Speed is 35% lower in price.

Q: Do they fit tight?
A: Racing snug fit but true to size. Choose your usual size, the fit is snug but not compressive.

Fast shipping and secure payment with PayPal. Buy the last Saucony Endorphin Speed 4 size 41 now and discover the propulsion of the nylon plate at an accessible price.

Also discover: Men's Running Shoes | Saucony Endorphin Pro 4 Carbon (race upgrade) | Saucony Ride 18 (complementary easy run)