All models
Street · 2020–present
Zero SR/S
Faired sport tourer
Gen 3· FST · Cypher III· 2020–present
111
CV
190
Nm
200
km/h
17.3
kWh
2.12 kg/CVpower-to-weight (latest year)
Read the Zero SR/S owner's guide
Charging, ride modes, maintenance, warning lights & care — everything from the manual, in plain language.
Motor & performance
- Motor
- Z-Force 75-10 enhanced thermal efficiency, passively air-cooled, interior permanent magnet AC motor
- Peak power
- 83 kW / 111 CV
- Peak torque
- 190 Nm
- Top speed
- 200 km/h
- Power-to-weight
- 2.12 kg/CV
Battery & charging
- Capacity (max)
- 17.3 kWh
- Capacity (nominal)
- 15.1 kWh
- Chemistry
- Li-Ion (Z-Force Intelligent Power Pack)
- Onboard charger
- 6.6 kW
- Charge time
- 230V Mode 2: 4.9 h to 100% / 3.9 h to 95%; Mode 3 single-phase: 4.9 h to 100% / 3.9 h to 95%; Mode 3 3-phase: 2.7 h to 100% / 2.0 h to 95%
Drivetrain & belt
- Sprocket / pulley (corona/pignone)
- 90T / 20T
- Final drive ratio
- 90T/20T
- Belt part number
- — (see dealer parts catalog)
- Transmission
- Clutchless Direct Drive
Range (Zero figures)
- City
- 275 km
- Highway
- 187 km
These are Zero's own figures at their own test speeds. What you get depends on how fast you ride, what you carry, the weather and the hills — work it out for this bike.
Chassis & suspension
- Model generation
- FST · Cypher III (Gen 3)
- Front fork
- Showa 43 mm big-piston separate-function forks (SFF-BP), adjustable preload/compression/rebound, 120 mm travel
- Rear shock (mono)
- Showa 40 mm piston, piggy-back reservoir shock with adjustable spring preload, compression, and rebound damping
- Rake / trail
- 24.5 ° / 94 mm
- Wheelbase
- 1450 mm
Zero's platform generation for the machine itself — a different axis from the log-format generation our parser reports. The two do not always match: a bike's diagnostic files can decode as a different generation than its platform number.
Brakes
- Front
- Bosch Advanced MSC, Dual J-Juan radial-mounted 4-piston calipers, 320 x 5 mm disc
- Rear
- Bosch Advanced MSC, J-Juan single piston floating caliper, 240 x 4.5 mm disc
- ABS
- Bosch Advanced MSC (with ABS)
Wheels & tyres
- Front wheel / tyre
- Pirelli Diablo Rosso III 120/70-17
- Rear wheel / tyre
- Pirelli Diablo Rosso III 180/55-17
- Front pressure (cold)
- 248 kPa (36 psi)
- Rear pressure (cold)
- 248 kPa (36 psi)
Lighting
- Headlight
- LED (sealed, non-serviceable unit)
- Tail light
- LED (integrated brake/tail light)
- Turn signals
- RY10W (10 watt) amber incandescent bulb
- Running light (DRL)
- LED (front running light, sealed)
Dimensions & weight
- Seat height
- 787 mm
- Curb weight
- 235 kg
Battery packs
The Z-Force packs offered on this bike across 2020–present — capacity, construction and weight on each pack's page.
Real-world data
Real-world figures for the Zero SR/S — aggregated and anonymized from actual riding data, not brochure numbers.
Components, MY2025
What Zero’s own manual specifies for this exact model year, and how widely each part was shared across the range. Every row names the manual behind it.
| Part | As the manual describes it | On this model | Shared with |
|---|---|---|---|
| Motor | Z-Force 75-10 | 2020–2025 | 3 model lines |
| Front fork | Showa 43 mm big-piston separate-function | 2020–2025 | 4 model lines |
| Rear shock | Showa 40 mm piston piggy-back reservoirread from the manual text (p.155) after our spec extraction missed the row | 2020–2025 | 9 model lines |
| Front brake | J-Juan 4-piston radial-mounted (twin caliper) 320 x 5 mm disc | 2020–2025 | 7 model lines |
| Rear brake | J-Juan 1-piston 240 x 4.5 mm discread from the manual text (p.155) after our spec extraction missed the row | 2020–2025 | 9 model lines |
| Front tyre | Pirelli Diablo Rosso III 120/70-17 | 2020–2025 | 4 model lines |
| Rear tyre | Pirelli Diablo Rosso III 180/55-17 | 2020–2025 | 4 model lines |
| ABS / stability control | Not identified for this model year — field absent from sheet | ||
| Final drive belt | Not identified for this model year — field absent from sheet | ||
No catalogue row names the Zero SR/S for MY2025 directly. Parts fitted to it may still be listed under a platform token, which this page will not expand for you — browse the part index instead.
Maintenance & parts
From the official Zero owner & service manuals.
Consumables & wear parts
- Final drive
- (90T / 20T)
- Brake fluid
- DOT 4
- Front tyre
- Pirelli Diablo Rosso III 120/70-17
- Rear tyre
- Pirelli Diablo Rosso III 180/55-17
- Headlight
- LED (sealed, non-serviceable unit)
- Tail light
- LED (integrated brake/tail light)
- Turn signals
- RY10W (10 watt) amber incandescent bulb
Final drive service
- Tension target
- 62–82 Hz
- Inspect / adjust
- Every 8,000 mi (13,000 km)
- Replace
- Every 24,000 mi (37,000 km)
- First / break-in service
- Initial 100 mi (160 km)
Key torque specs
- Rear axle nut
- 75 lb·ft (102 Nm)
- Belt tension adjustment bolts
- 4 lb-ft (5 Nm)
- Power pack-to-frame bolts (left & right)
- 26 lb-ft (35 Nm)
- Power pack ground strap bolt
- 5 lb-ft (7 Nm)
- Brake banjo bolt
- 20 lb-ft (27 Nm)
Service schedule
- Initial 100 mi (160 km)belt tension, front brake lever pivot, throttle grip, kickstand pivots/switch, drive motor commissioning
- Initial 600 mi (1,000 km)wheel bearings, belt tension, steering bearings, front brake lever pivot, kickstand switch, drive motor
- Every 8,000 mi (13,000 km) or 12 monthsbrake fluid replace, wheels/run-out, wheel bearings, belt tension, steering bearings, chassis fasteners
- Every 16,000 mi (25,000 km)repack steering bearings
- Every 24,000 mi (37,000 km)replace drive belt, swingarm pivot bearings
Service timeline
Every occurrence of every interval, from Zero's SRS_Service_Manual_8811934-AI.pdf, page 13.
Break-in
Own scale — these all happen in the first 1k km160 km
belt tension, front brake lever pivot, throttle grip, kickstand pivots/switch, drive motor commissioning
1k km
wheel bearings, belt tension, steering bearings, front brake lever pivot, kickstand switch, drive motor
Recurring
Every mark is one occurrence, to 40k kmEvery 13k kmor 12 months — whichever first
brake fluid replace, wheels/run-out, wheel bearings, belt tension, steering bearings, chassis fasteners
Every 25k km
repack steering bearings
Every 37k km
replace drive belt, swingarm pivot bearings
08k16k24k32k40k
Model year evolution
Pick a year to put it head to head with another bike — charging, range and what a replacement battery costs.
Specifications extracted from the official Zero Motorcycles owner & service manuals (EU / metric figures). Values are for guidance — always confirm against your bike's manual.