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NHTSA ID Number: 10200060

Manufacturer Communication Number: SV-ZMC-020-417

TSB/Document Date: 2021-08-21


Summary

Model Year 2020 Zero SR/F Rear Rotor Bolts Re-Torque Service Campaign - Zero Motorcycles has determined that the rear rotor bolts on certain model year 2020 Zero SR/F motorcycles were insufficiently torqued. Owners of these motorcycles may find that these bolts will back out of their sockets slowly and scratch or damage the swingarm of their motorcycles. If the bolts were to back out sufficiently to contact the swingarm, this would also cause objectionable noise while riding. Owners should take their motorcycles to their dealer to have the rear rotor bolts re-torqued to 26 ft-lbs/36 Nm. As long as there is no damage to the bolts and they move when re-torqued, the rear rotor bolts do not need to be replaced and the existing lock patch will secure them in place. If the bolts are damaged or removed first, then they should be replaced by the dealer.


Dealer
Sales
Operator/
New
General
Vehicles
Manager
Date:
January 20, 2020

Sales
Used
Vehicles

Business
Manager
(F&I)

Service

Source: Zero Motorcycles Customer
Experience Department

Parts &
Accessories

Administration

Program Period: Commencing
January 20, 2020

Model Year 2020 Zero SR/F Rear Rotor Bolts
Re-Torque Service Campaign
Purpose
Zero Motorcycles has determined that the rear rotor bolts on certain model year 2020 Zero SR/F
motorcycles were insufficiently torqued. Owners of these motorcycles may find that these bolts will back out
of their sockets slowly and scratch or damage the swingarm of their motorcycles. If the bolts were to back
out sufficiently to contact the swingarm, this would also cause objectionable noise while riding.
Owners should take their motorcycles to their dealer to have the rear rotor bolts re-torqued to 26 ft-lbs/36
Nm. As long as there is no damage to the bolts and they move when re-torqued, the rear rotor bolts do not
need to be replaced and the existing lock patch will secure them in place. If the bolts are damaged or
removed first, then they should be replaced by the dealer.
Applicable Models
All 2020 Zero SR/F motorcycles manufactured before December 19, 2019. The last five digits of the vehicle
identification number of affected motorcycles will be 13511 or lower.
Tools Required
T40 Star Drive Bit Socket
Torque Wrench (capable of 26 ft-lbs/36 Nm)
Parts Required
None.
However, if the rear rotor bolts are damaged in the process or removed prior to re-torquing them, please
replace with the following part number:
90-08259 – STAR DRIVE BUTTON HEAD SCREW M8X20 W/ PRE-APPLIED LOCK PATCH

If you have any questions, please contact the Customer Service Team.
In the Americas: 888-RUN-ZERO (888-786-9376) Ext 2
In the EMEA region: +31 (0) 72 5112014
1

SV-ZMC-020-417

Dealer
Sales
Operator/
New
General
Vehicles
Manager
Date:
January 20, 2020

Sales
Used
Vehicles

Business
Manager
(F&I)

Service

Source: Zero Motorcycles Customer
Experience Department

Parts &
Accessories

Administration

Program Period: Commencing
January 20, 2020

Process Steps
1. Confirm that you have all required tools and parts before starting this re-torque process. The rear rotor
bolts only need to be replaced if they are damaged or have been removed, which strips the pre-applied lock
patch.
2. Lift the rear wheel using a rear paddock stand or other suitable method.
CAUTION: Do not lift the Zero SR/F by placing a scissor jack or other lift under the controller carriereBay logo. Lifting
the motorcycle in this manner could result in damage to the controller and other components.

3. Using the T40 Star Drive Bit Socket and a Torque Wrench, re-torque the existing rotor bolts one at a time
to 26 ft-lbs/36 Nm. The existing paint pen marks should reflect that the head of the bolt has rotated in this
process.

If you have any questions, please contact the Customer Service Team.
In the Americas: 888-RUN-ZERO (888-786-9376) Ext 2
In the EMEA region: +31 (0) 72 5112014
2

SV-ZMC-020-417

Dealer
Sales
Operator/
New
General
Vehicles
Manager
Date:
January 20, 2020

Sales
Used
Vehicles

Business
Manager
(F&I)

Service

Source: Zero Motorcycles Customer
Experience Department

Parts &
Accessories

Administration

Program Period: Commencing
January 20, 2020

4. If any of the rear rotor bolts is damaged or is first removed, it should be replaced. Remove such bolts one
at a time and replace. Torque each bolt to the 26 ft-lbs/36 Nm.
5. Once all five rotor bolts have been re-torqued or replaced, lower the rear wheel of the motorcycle.
Timing and Reimbursement
To receive reimbursement for the work performed and any parts used under this service campaign, the
dealer must submit a Warranty Claim for the replacement costs incurred that includes the following
information:
• Fault Summary: MY20 Zero SR/F Rear Rotor Bolt Re-Torque Campaign
• Fault Area: 25-Brake
• Fault Code: 90-Service Bulletin Campaign
• Service Bulletin / Recall: MY20 Zero SR/F Rear Rotor Bolt Re-Torque Campaign
• Warranty Claim Type: Service Bulletin/Recall
See example below for full details.

Zero Motorcycles believes that the time that should be allotted to this work is 20 minutes (0.33 hours). We
do not reimburse any costs related to towing or loaner/temporary replacement motorcycles/vehicles.
If you have any questions, please contact the Customer Service Team.
In the Americas: 888-RUN-ZERO (888-786-9376) Ext 2
In the EMEA region: +31 (0) 72 5112014
3

SV-ZMC-020-417

Dealer
Sales
Operator/
New
General
Vehicles
Manager
Date:
January 20, 2020

Sales
Used
Vehicles

Business
Manager
(F&I)

Service

Source: Zero Motorcycles Customer
Experience Department

Parts &
Accessories

Administration

Program Period: Commencing
January 20, 2020

Technical Cases for affected motorcycles have been created by Zero Motorcycles. To find the matching
case number in the Partner Community select the “Support” tab:

Click on the “Start New Case” button and enter the last 5 digits of the frame number in the “Enter Vehicle
Identification Number” field:

You will find the matching case it the Open Service Notification Field.

If you have any questions, please contact the Customer Service Team.
In the Americas: 888-RUN-ZERO (888-786-9376) Ext 2
In the EMEA region: +31 (0) 72 5112014
4

SV-ZMC-020-417

1

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TSB/Document ID: SV-ZMC-020-417

Replacement Service Bulletin Number:

MFR Communication Date: 2020-01-20

MFR Internal Campaign ID/Software Version:

Communication Type: Service Bulletin/Repair Instructions

NHTSA Components: WHEELS

MFR Component System:

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