Speed Breakpoints Explained: Complete HSR Speed Guide (2026)
Complete guide to speed breakpoints in Honkai: Star Rail. Covers how speed works, the 134/145/160 breakpoints, action value mechanics, and speed tuning for supports.
Overview
Speed is one of the most important stats in Honkai: Star Rail — it determines how often your characters act. Understanding breakpoints (the speed thresholds that give you extra actions) is critical for optimizing your teams.
This guide explains everything from Action Value basics to advanced speed tuning.
How Speed Works (The Basics)
Every character has Action Value (AV) — a timer that counts down to their turn.
Action Value = 10000 / Speed
- At 100 SPD: 10000/100 = 100 AV per turn
- At 134 SPD: 10000/134 = ~74.6 AV per turn
- At 160 SPD: 10000/160 = 62.5 AV per turn
In a MoC cycle (150 AV total), lower AV = more turns.
Key Speed Breakpoints
134 SPD ★★★★★ — The Most Important Breakpoint
This is the most critical breakpoint in the game. 134 SPD gives you 2 actions in the first two MoC cycles.
| SPD | Actions in 300 AV (Cycle 0-1) |
|---|---|
| 133 | 3 actions |
| 134 | 4 actions |
| 160 | 4 actions |
| 161 | 5 actions |
Rule: Always aim for 134 SPD on your DPS and supports unless they have a specific reason not to.
145 SPD — Support Breakpoint
Primarily relevant for supports using Talia: Kingdom of Banditry planar set (needs 145 SPD for the full 20% Break Effect bonus).
Also the recommended minimum for Firefly out of combat to reach her ideal in-combat speed.
160 SPD — 5-Action Breakpoint
161 SPD gives 5 actions in the first 2 cycles compared to 4 actions at 160 SPD. However, the substat investment is steep.
| SPD | Actions (0-300 AV) |
|---|---|
| 134 | 4 actions |
| 160 | 4 actions |
| 161 | 5 actions |
Reach 161+ if you can, but 134 is the practical target for most players.
Other Breakpoints
| SPD | Breakpoint Value |
|---|---|
| 101 | Base speed for most characters. Too slow. |
| 111 | 2 turns in first cycle. Better than base. |
| 120 | Minimum for Fleet of the Ageless planar bonus. |
| 134 | ⭐ 4 actions in first 2 cycles — the standard |
| 145 | Talia breakpoint + Firefly target |
| 150 | Glamoth planar first breakpoint |
| 160 | Glamoth planar second breakpoint |
| 161 | 5 actions in 2 cycles — hyperspeed tuning |
Speed Tuning for Supports
The -1 SPD Setup (Sunday/Bronya)
This is the most common speed tuning strategy for action advance supports:
DPS Speed: 135
Support Speed: 134 (1 SPD slower)
How it works:
- DPS acts first (135 SPD)
- Sunday/Bronya uses skill → advances DPS by 100%
- DPS acts again immediately
- Result: DPS gets 2 turns per cycle + their support buff
Hyperspeed Support Setup
Support Speed: 160+
DPS Speed: Base (no speed investment)
Useful when you can't speed tune or your DPS doesn't want speed (e.g., Castorice with Poet set). The support cycles faster and keeps the DPS buffed.
Characters Who Don't Want Speed
Some characters perform better with less speed or specific speed values:
| Character | Speed Strategy | Reason |
|---|---|---|
| Castorice | 95 (base) | Poet 4-piece gives 32% CRIT if SPD ≤ 95 |
| Acheron (E2+) | ATK% boots | Can drop speed for more ATK when using ATK boots |
| Blade (slow setup) | Base SPD | Some teams prefer him slow and Bronya-advanced |
Speed Stacking in Combat
Be aware that in-combat speed buffs can dramatically change your effective SPD:
| Source | Buff | Notes |
|---|---|---|
| Asta Ultimate | +36-72 SPD for team | Massive — can push anyone to 160+ |
| Ruan Mei Talent | +10% SPD for team | Team-wide % buff |
| Planar Set (Kalpagni) | +6% SPD | Forge set for Firefly |
| Relic Set (Sacerdos) | +6% SPD | Sunday's set |
| Dance Dance Dance | 24% Action Advance on ultimate | Equivalent of massive SPD boost |
How To Reach Each Breakpoint
134 SPD — Base Standard
| Starting SPD | SPD substats needed |
|---|---|
| 95 (base) | ~15 SPD substats |
| 99 (base + boots) | ~11 SPD substats |
| 100 (base with 2pc set) | ~11 SPD substats |
| 101 (base + 2pc SPD) | ~10 SPD substats |
161 SPD — Hyperspeed
| Starting SPD | SPD substats needed |
|---|---|
| 95 (base) | ~24 SPD substats (extremely hard) |
| 101 (base + 2pc) | ~21 SPD substats (very hard) |
Tip: Use SPD boots (+25 base SPD) to reduce substat requirements significantly:
| Without SPD boots (134) | With SPD boots (134) |
|---|---|
| Need 39 extra SPD from substats | Need 10 extra SPD from substats |
Practical Speed Targets By Role
| Role | Target | Notes |
|---|---|---|
| DPS | 134+ | Standard for most carries |
| Support (Tingyun, Pela) | 145+ | Want to be faster than your DPS |
| Sunday / Bronya | 134 or tuned -1 | Specific to your carry's speed |
| Healer | 134+ | Can't heal if they never act |
| Firefly | 145+ out of combat | Reaches 160+ in combat with Kalpagni |
| Robin | 120+ (minimum) | Only needs Fleet bonus — her ult advances everyone |
Quick Reference Table
SPD → Actions in 0-300 AV (2 MoC Cycles)
─────────────────────────────────────
95 → 2 actions (very slow)
111 → 3 actions (minimum functional)
120 → 3 actions (Fleet threshold)
134 → 4 actions ⭐ STANDARD
145 → 4 actions (Talia threshold)
150 → 4 actions (Glamoth first)
160 → 4 actions (Glamoth second)
161 → 5 actions ⭐ HARD
─────────────────────────────────────
Final Verdict
Speed is complicated, but you only need to remember two numbers:
- 134 — the universal baseline. Get everyone to 134 SPD first.
- -1 SPD tuning — make your Sunday/Bronya 1 SPD slower than your carry.
Everything past that is min-maxing. Don't let speed breakpoints stress you out — 134 SPD on everyone clears all content comfortably.