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 ultralight reactive foam
• Upper: Breathable engineered racing mesh
• Outsole: XT-900 high traction asphalt rubber
• Drop: 8mm (fast heel-to-forefoot transition)
• Weight: 212g size 42 (ultralight cushioned category)
• Estimated lifespan: 500-700 km (nylon plate more durable than carbon)
• Recommended paces: 4:00-5:30 min/km
• Available sizes: 41 (1 unit), 42-46 sold out

Nylon SPEEDROLL Plate: Accessible Propulsion

The nylon SPEEDROLL plate offers smooth propulsion and superior energy return with 90% efficiency of carbon plates but greater flexibility and comfort. The rocker geometry promotes explosive heel-to-toe transitions, ideal for tempo runs, repeats, 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 ultralight cushioning with 40% higher energy return than 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, needs a cushioned shoe like Ride/Triumph), ultra-marathons over 30km (needs more cushioning), runners with moderate-severe pronation (needs stability), trail running (needs specific outsole), runners over 85kg for marathons (needs 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 superior only 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 repeats, progressive runs, fartleks, 10K-21K races, quality training 2-3 times/week, runners 60-80kg looking for a fast shoe without a carbon investment of €200+.

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 extends the life of the nylon plate and prevents injuries.

Maintenance and Care

• Hand wash with cold water and neutral 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. The Speed 4 offers 90% of the performance of carbon shoes costing €200+ at an accessible price of €135. The nylon SPEEDROLL plate guarantees smooth propulsion without the rigidity of carbon, ideal for runners who train speed 2-3 times/week. Durability of 500-700km 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 the 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 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: What's the 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, snug but not compressive fit.

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)