2020 Zero SR/F Recall: Rear rotor bolts were insufficiently tightened
NHTSA campaign 21V795000 · Service Brakes, Hydraulic · filed Oct 13, 2021 · verified Jul 30, 2026
The defect
Zero Motorcycles Inc. (Zero) is recalling certain 2020 SR/F motorcycles. The rear rotor bolts were insufficiently tightened.
The risk
The loose bolts may damage the caliper or swingarm, reducing rear braking capability and increasing the risk of a crash.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
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.
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.
Affected vehicles
Related recalls
More Zero SR/F recalls
Other campaigns involving Zero vehicles
Source: NHTSA recall database, campaign 21V795000 (manufacturer number SV-ZMC-020-417). Data last verified Jul 30, 2026.