Vehicle recall 21V795000 · October 13, 2021
2020 Zero SR/F
The rear rotor bolts were insufficiently tightened.
Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.
- Summary
- Zero Motorcycles Inc. (Zero) is recalling certain 2020 SR/F motorcycles. The rear rotor bolts were insufficiently tightened.
- Consequence
- The loose bolts may damage the caliper or swingarm, reducing rear braking capability and increasing the risk of a crash.
- Remedy
- Dealers will correctly tighten and replace the rear rotor bolts as necessary, free of charge. Owner notification letters were mailed November 1, 2021. Owners may contact Zero customer service at 1-888-841-8085. Zero's number for this recall is SV-ZMC-020-417.
- Notes
- Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Recall details
- NHTSA campaign
- 21V795000
- Reported to NHTSA
- October 13, 2021
- Filed by
- Zero Motorcycles Inc.
- Manufacturer campaign
- SV-ZMC-020-417
- Owner notification
- November 1, 2021
- Vehicles potentially affected
- 411
- Initiated by
- the manufacturer
- Components
- Service brakes, hydraulic › Foundation components › Disc › Rotor
Vehicles covered
As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.
Has your Zero been repaired?
Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.
NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A Zero dealer can also check your VIN. Recall repairs are free.