Why choose Terrex Agravic Speed Ultra?Buy Terrex Agravic Speed Ultra if
+2.2 Weight Efficiency+2.2 Weight Efficiency: Better measured rating in wear-test consensus.
Head-to-Head Comparison·Lab Telemetry
adidas · Trail
WINNER
Terrex Agravic Speed Ultra
78
Stack40mm
Weight264g
Drop8mm
New Balance · Trail
Fresh Foam X Hierro v9
71
Stack42mm
Weight310g
Drop4mm
Key Differences & Advantages
Why choose Fresh Foam X Hierro v9?Buy Fresh Foam X Hierro v9 if
+1.2 Cushioning & Softness+1.2 Underfoot Rebound: Snappier propulsion and mechanical return through toe-off.
The Runner's Pick
Final Decision: Who Buys Which Model?
Side-by-side selection criteria grounded in verified mechanical specs
adidas
Terrex Agravic Speed Ultra
78
Choose the Terrex Agravic Speed Ultra if:
Choose the Terrex Agravic Speed Ultra if your priority is an ultralight chassis with effortless turnover powered by Lightstrike Pro PEBA foam with TPE Energy Rods and a noticeably lighter weight (264g vs 310g). It is the better match for runners targeting minimizing leg fatigue across late-mile splits over the Fresh Foam X Hierro v9's focus on high-mileage protection and low-impact recovery cruising.
8mm drop · 264g · $220Audit
New Balance
Fresh Foam X Hierro v9
71
Choose the Fresh Foam X Hierro v9 if:
Choose the Fresh Foam X Hierro v9 if your priority is plush impact absorption and deep underfoot comfort powered by Dual-density Fresh Foam X midsole (310g). It is the better match for runners targeting high-mileage protection and low-impact recovery cruising over the Terrex Agravic Speed Ultra's focus on race-pace velocity and responsive tempo efforts.
4mm drop · 310g · $160Audit
Dealbreaker Warnings · Who Should Skip These
Critical biomechanical trade-offs to avoid buying the wrong shoe
adidas Terrex Agravic Speed Ultra
Skip Terrex Agravic Speed Ultra if your typical workout calls for a specialized racer rather than a durable daily trainer.
New Balance Fresh Foam X Hierro v9
Skip Fresh Foam X Hierro v9 if your mileage includes paved asphalt or concrete; aggressive 6mm lugs wear rapidly on hard surfaces and cause harsh ground shock.
8-Axis Telemetry Radar
Terrex Agravic Speed Ultra leads by +7.0 PTS
Terrex78vsFresh71
Tap any axis node to inspect wear-test citations
🔬 Inspect Granular Lab Specs & Fit Telemetry▼
Fit & Sizing Consensus
Real-world wear-test consensus across runner foot profiles
Terrex Agravic Speed Ultra
Fresh Foam X Hierro v9
Sizing LengthSizing differs
Runs Small
Terrex62%
True to Size
Fresh78%
Runs Large
Terrex Agravic Speed Ultra: Runs small — consider 0.5 size up(n=24)
Fresh Foam X Hierro v9: True to size(n=28)
Toe Box WidthMatch
Performance Tight
Standard
Terrex76%Fresh74%
Wide
Terrex Agravic Speed Ultra: Standard width(n=26)
Fresh Foam X Hierro v9: Standard width(n=27)
Arch SupportSizing differs
Flat / Low
Terrex68%
Neutral Stability
Fresh72%
High Arch
Terrex Agravic Speed Ultra: Flat / low arch(n=20)
Fresh Foam X Hierro v9: Neutral stability / moderate arch(n=22)
| RADAR AXIS | Terrex Agravic Speed Ultra | Fresh Foam X Hierro v9 | Δ DELTA | COHORT RANK |
|---|---|---|---|---|
| Cushioning & Softness | 7.8 | 9.0 | −1.2 (Fresh Foam X Hierro v9 higher by NaN) | #15/28 |
| Energy Return & Bounce | 8.1 | 6.0 | +2.1 (Terrex Agravic Speed Ultra higher by 2.1) | #15/28 |
| Weight Efficiency | 7.8 | 5.6 | +2.2 (Terrex Agravic Speed Ultra higher by 2.2) | #15/28 |
| Stability & Support | 7.2 | 6.4 | +0.8 (Terrex Agravic Speed Ultra higher by 0.8) | #15/28 |
| Traction & Grip | 9.0 | 8.6 | +0.4 (Terrex Agravic Speed Ultra higher by 0.4) | #15/28 |
| Upper Comfort & Lockdown | 7.2 | 6.6 | +0.6 (Terrex Agravic Speed Ultra higher by 0.6) | #15/28 |
| Breathability | 7.8 | 5.9 | +1.9 (Terrex Agravic Speed Ultra higher by 1.9) | #15/28 |
| Durability | 6.6 | 6.5 | +0.1 (Terrex Agravic Speed Ultra higher by 0.1) | #15/28 |
| Meta-Score | 78contender | 71average | +7.0 | Calibrated |
The Record · Specification Telemetry
Cohort-relative percentiles and verified technical specs
Terrex Agravic Speed Ultra
Fresh Foam X Hierro v9
Weight (US Men's 9)Lighter than 76% of daily trainers
Terrex Agravic Speed Ultra264g
Fresh Foam X Hierro v9310g
›adidas Terrex Agravic Speed Ultra saves 46g per stride, noticeable after mile 6 of continuous running.
Heel Cushion StackMore underfoot foam than 67% of trainers
Terrex Agravic Speed Ultra40.0mm
Fresh Foam X Hierro v942.0mm
›New Balance Fresh Foam X Hierro v9 delivers 2.0mm more vibration isolation for long recovery efforts than Terrex Agravic Speed Ultra.
Heel-to-Toe DropΔ 4.0mm
Terrex Agravic Speed Ultra8.0mm
Fresh Foam X Hierro v94.0mm
›Terrex Agravic Speed Ultra's 8mm drop shifts load toward the knees/quads, while Fresh Foam X Hierro v9's 4mm drop engages the Achilles and calves.
Midsole Foam & Energy ReturnHigher rebound than 83% of tested foams
Lightstrike Pro PEBA foam with TPE Energy Rods8.1/10
Dual-density Fresh Foam X midsole6.0/10
›Lightstrike Pro PEBA foam with TPE Energy Rods yields a springier, high-rebound toe-off compared to Dual-density Fresh Foam X midsole's grounded, stable feel.
Outsole Durability & TractionTougher rubber than 69% of road shoes
Continental rubber6.6/10
Vibram Megagrip outsole6.5/10
›Terrex Agravic Speed Ultra utilizes Continental rubber compound formulated for extended 500+ mile abrasive asphalt longevity.
Fit & Sizing Consensus
Real-world wear-test consensus across runner foot profiles
Terrex Agravic Speed Ultra
Fresh Foam X Hierro v9
Sizing LengthSizing differs
Runs Small
Terrex62%
True to Size
Fresh78%
Runs Large
Terrex Agravic Speed Ultra: Runs small — consider 0.5 size up(n=24)
Fresh Foam X Hierro v9: True to size(n=28)
Toe Box WidthMatch
Performance Tight
Standard
Terrex76%Fresh74%
Wide
Terrex Agravic Speed Ultra: Standard width(n=26)
Fresh Foam X Hierro v9: Standard width(n=27)
Arch SupportSizing differs
Flat / Low
Terrex68%
Neutral Stability
Fresh72%
High Arch
Terrex Agravic Speed Ultra: Flat / low arch(n=20)
Fresh Foam X Hierro v9: Neutral stability / moderate arch(n=22)
The Record · Specification Telemetry
Cohort-relative percentiles and verified technical specs
Terrex Agravic Speed Ultra
Fresh Foam X Hierro v9
Weight (US Men's 9)Lighter than 76% of daily trainers
Terrex Agravic Speed Ultra264g
Fresh Foam X Hierro v9310g
›adidas Terrex Agravic Speed Ultra saves 46g per stride, noticeable after mile 6 of continuous running.
Heel Cushion StackMore underfoot foam than 67% of trainers
Terrex Agravic Speed Ultra40.0mm
Fresh Foam X Hierro v942.0mm
›New Balance Fresh Foam X Hierro v9 delivers 2.0mm more vibration isolation for long recovery efforts than Terrex Agravic Speed Ultra.
Heel-to-Toe DropΔ 4.0mm
Terrex Agravic Speed Ultra8.0mm
Fresh Foam X Hierro v94.0mm
›Terrex Agravic Speed Ultra's 8mm drop shifts load toward the knees/quads, while Fresh Foam X Hierro v9's 4mm drop engages the Achilles and calves.
Midsole Foam & Energy ReturnHigher rebound than 83% of tested foams
Lightstrike Pro PEBA foam with TPE Energy Rods8.1/10
Dual-density Fresh Foam X midsole6.0/10
›Lightstrike Pro PEBA foam with TPE Energy Rods yields a springier, high-rebound toe-off compared to Dual-density Fresh Foam X midsole's grounded, stable feel.
Outsole Durability & TractionTougher rubber than 69% of road shoes
Continental rubber6.6/10
Vibram Megagrip outsole6.5/10
›Terrex Agravic Speed Ultra utilizes Continental rubber compound formulated for extended 500+ mile abrasive asphalt longevity.
| RADAR AXIS | Terrex Agravic Speed Ultra | Fresh Foam X Hierro v9 | Δ DELTA | COHORT RANK |
|---|---|---|---|---|
| Cushioning & Softness | 7.8 | 9.0 | −1.2 (Fresh Foam X Hierro v9 higher by NaN) | #15/28 |
| Energy Return & Bounce | 8.1 | 6.0 | +2.1 (Terrex Agravic Speed Ultra higher by 2.1) | #15/28 |
| Weight Efficiency | 7.8 | 5.6 | +2.2 (Terrex Agravic Speed Ultra higher by 2.2) | #15/28 |
| Stability & Support | 7.2 | 6.4 | +0.8 (Terrex Agravic Speed Ultra higher by 0.8) | #15/28 |
| Traction & Grip | 9.0 | 8.6 | +0.4 (Terrex Agravic Speed Ultra higher by 0.4) | #15/28 |
| Upper Comfort & Lockdown | 7.2 | 6.6 | +0.6 (Terrex Agravic Speed Ultra higher by 0.6) | #15/28 |
| Breathability | 7.8 | 5.9 | +1.9 (Terrex Agravic Speed Ultra higher by 1.9) | #15/28 |
| Durability | 6.6 | 6.5 | +0.1 (Terrex Agravic Speed Ultra higher by 0.1) | #15/28 |
| Meta-Score | 78contender | 71average | +7.0 | Calibrated |
The Runner's Pick
Final Decision: Who Buys Which Model?
Side-by-side selection criteria grounded in verified mechanical specs
adidas
Terrex Agravic Speed Ultra
78
Choose the Terrex Agravic Speed Ultra if:
Choose the Terrex Agravic Speed Ultra if your priority is an ultralight chassis with effortless turnover powered by Lightstrike Pro PEBA foam with TPE Energy Rods and a noticeably lighter weight (264g vs 310g). It is the better match for runners targeting minimizing leg fatigue across late-mile splits over the Fresh Foam X Hierro v9's focus on high-mileage protection and low-impact recovery cruising.
8mm drop · 264g · $220Audit
New Balance
Fresh Foam X Hierro v9
71
Choose the Fresh Foam X Hierro v9 if:
Choose the Fresh Foam X Hierro v9 if your priority is plush impact absorption and deep underfoot comfort powered by Dual-density Fresh Foam X midsole (310g). It is the better match for runners targeting high-mileage protection and low-impact recovery cruising over the Terrex Agravic Speed Ultra's focus on race-pace velocity and responsive tempo efforts.
4mm drop · 310g · $160Audit
Quiver Overlap
Direct Trail Rivals
2-Shoe Rotation Strategy
Both models occupy the exact same trail slot on your shoe rack. Rather than buying both, runner consensus suggests picking the lighter Terrex Agravic Speed Ultra (264g) for quicker cadence, or the Fresh Foam X Hierro v9 for its Dual-density Fresh Foam X midsole ride feel and structure.
Terrex Agravic Speed Ultra RoleTrail Workhorse
Fresh Foam X Hierro v9 RoleAlternative Trail
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