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NHTSA defect investigation · Preliminary Evaluation

Triumph preliminary evaluation PE21017

Extended Stopping Distance. NHTSA’s Office of Defects Investigation opened this preliminary evaluation about the abs warning light on 14 model years (2016–2019). Opened Jul 9, 2021, closed Jan 15, 2025 after 3.5 years without a recall. closed

What NHTSA says

Source: Office of Defects Investigation, as filed

The Office of Defects Investigation (ODI) opened this Preliminary Evaluation (PE21017) on July 9, 2021 for model year (MY) 2016-2019 Triumph Thruxton and Speed Triple model motorcycles based on allegations of loss of front braking performance.Vehicle Owner Questionnaires (VOQ) indicated riders were experiencing a soft front brake lever that could result in an unexpected extended stopping distance. On July 28, 2021, ODI sent an Information Request letter to Triumph to learn more about the subject components and alleged defect.On September 24, 2021, Triumph submitted its response, which ODI analyzed.ODI learned that the majority of the VOQ incidents occurred two or more years after the motorcycle was manufactured. The manufacturer recommends changing the brake fluid every two years, regardless of mileage. As the manufacturer’s warranty lasts for two years from the date of sale, many dealers covered the complicated brake fluid replacement procedure under warranty. However, most of the motorcycles involved in these incidents were overdue to have their brake system serviced. Triumph conducted testing of the brake system to better quantify what riders were experiencing.Triumph found pulling the lever a second time immediately after an initial pull did result in less lever travel for the same force exerted on the lever.This reduction was two millimeters or less.Additional testing was conducted to ascertain the caliper force generated relative to various lever forces.Triumph found that the caliper force varied +/- 2% between the first and second pull of the front brake lever and any given applied force. Triumph claimed that the lack of proper maintenance was the cause of the soft brake lever.Triumph conducted additional testing to quantify this claim.The lever travel between the first and second pull increased 150% on an improperly maintained system versus a properly maintained system.However, the caliper force only decreased 2-3% on average with this increased lever travel, further indicating that the subject motorcycles are capable of fully stopping. ODI located and evaluated a subject motorcycle.Measurements were taken and confirmed there was a small decrease in lever travel between the first and second pull.ODI then conducted a series of hard braking events, which did not produce evidence that the difference in lever travel resulted in an extended stopping distance. ODI also considered Fatal Accident Reporting System (FARS) data.ODI identified six fatal events that involved a subject vehicle.The service history records were reviewed for each motorcycle, however,none of the records included any mention of braking problems and thus there is no indication that the alleged defect may have contributed to the fatal crashes. As of this time there are no VOQ or manufacturer claims reporting an injury, fatality, or crash arising from this issue.Based on the available information, including the absence of such events after nine years of service on the oldest motorcycles, ODI is closing this investigation.The closing of this investigation does not constitute a finding by NHTSA that no safety-related defect exists. The agency reserves the right to take further action if warranted by the circumstances. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.

Stage Preliminary Evaluation — NHTSA works to complete one within eight months Opened Jul 9, 2021 Closed Jan 15, 2025 Manufacturer Triumph Motorcycles America, Ltd. Components Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Abs Warning Light, Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module, Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip, Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Wheel Speed Sensor/Tone Ring, Service Brakes, Hydraulic › Brake Fluid Low Warning › Lamp, Service Brakes, Hydraulic › Brake Fluid Low Warning › Switch/Sensor/Float

A Preliminary Evaluation is the first formal stage: NHTSA has decided the complaints and other information it screened are worth a closer look, and asks the manufacturer for its own data on the condition. The summary is the agency’s own text from its investigation file, unedited; the opening and closing resumes with the full reasoning are on NHTSA’s site under this number.

What this means for an owner

Source: and what happens next

An investigation is not a finding that a defect exists, and it puts no duty on anyone. NHTSA opens a Preliminary Evaluation when complaints and other reports suggest a condition worth asking the manufacturer about; it upgrades to an Engineering Analysis when the answers warrant testing; it closes either when it recommends a recall, when the manufacturer recalls on its own, or when no defect trend is found. The agency’s own goals are about four months for a petition, eight for a Preliminary Evaluation or a Recall Query and eighteen for an Engineering Analysis; many run longer.

This one closed without a recall. That means NHTSA found no defect trend it chose to act on at the time, or the manufacturer addressed the condition another way (a service campaign or a bulletin, which have their own pages). A closed file can be reopened if new reports arrive.

Model years it names

Source: as NHTSA filed them

Also named: 2016 Triumph Speed Triple; 2017 Triumph Speed Triple; 2018 Triumph Speed Triple; 2019 Triumph Speed Triple; 2016 Triumph Speed Triple R; 2017 Triumph Speed Triple R; 2019 Triumph Speed Triple RS; 2019 Triumph Speed Triple S; 2016 Triumph Thruxton; 2017 Triumph Thruxton; 2018 Triumph Thruxton; 2019 Triumph Thruxton; 2017 Triumph Thruxton 1200R; 2017 Triumph Thruxton R.

A vehicle page’s investigation list carries the same action; a name here is the scope NHTSA opened, not a list of affected VINs.

Common questions

Source: NHTSA Office of Defects Investigation

Is PE21017 a recall?

No. A preliminary evaluation is NHTSA asking questions, not a recall. A safety recall carries an NHTSA campaign number and a duty to repair for free; this one closed without one. Whether one particular vehicle has an open recall is a VIN question at nhtsa.gov/recalls.

Is PE21017 still open?

No. It closed on Jan 15, 2025 without a recall.

Which vehicles does PE21017 cover?

NHTSA opened it on 14 model years: 2016 Triumph Speed Triple, 2017 Triumph Speed Triple, 2018 Triumph Speed Triple, 2019 Triumph Speed Triple, 2016 Triumph Speed Triple R, 2017 Triumph Speed Triple R and more. That is the scope of the inquiry, not a list of affected vehicles; a recall, if one follows, defines its own population by VIN.