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2011 HARLEY-DAVIDSON Flhx

Owner reports · Recalls · Investigations

Limited comparison data

There is not enough comparable history to draw a useful model-year comparison.

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How this year compares

Owner complaints by model year

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Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

All reported categories

Tap a category to read its complaints. One report may name several components.

When problems were reported

Mileage at the reported incident

Limited mileage data: 15 of 18 reports include usable mileage. There isn’t enough coverage to show a useful chart.

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Service Brakes. Review the 8 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Tires. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Exterior Lighting. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

2 crash reports1 fire reports2 injury reports

What owners actually said

18 reports
19,000 miles · Apr 25, 2021
Service Brakes

FRONT BRAKE LEVER IS FROZEN IN OPEN POSITION MAKING STOPPING MORE DANGEROUS.

NHTSA ODI #11413860

21,000 miles · Oct 3, 2018
Service Brakes

FRONT BREAK LEVER COMPLETELY STIFF. WAS ABOUT TO GO FOR A RIDE WHEN I NOTICED IT. . LUCKILY I WAS NOT RIDING THE BIKE WHEN THIS HAPPENED. FROM WHAT I'VE READ AND UNDERSTAND THIS IS A ONGOING ISSUE WITH THE ABS MODULES ON THESE BIKES. INSTEAD OF ISSUING A RECALL HARLEY HAS OPTED TO REPLACE BRAKE FLUID AT NO CHARGE AND RECOMMEND …

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FRONT BREAK LEVER COMPLETELY STIFF. WAS ABOUT TO GO FOR A RIDE WHEN I NOTICED IT. . LUCKILY I WAS NOT RIDING THE BIKE WHEN THIS HAPPENED. FROM WHAT I'VE READ AND UNDERSTAND THIS IS A ONGOING ISSUE WITH THE ABS MODULES ON THESE BIKES. INSTEAD OF ISSUING A RECALL HARLEY HAS OPTED TO REPLACE BRAKE FLUID AT NO CHARGE AND RECOMMEND CHANGING FLUID EVERY TWO YEARS AFTER. THIS SEEMS TO BE A ENGINEERING PROBLEM AND NOT A FLUID PROBLEM. THERE ARE PLENTY OF OTHER VEHICLES WITH ABS AND DOT 4 FLUID THAT ARE NOT HAVING THIS ISSUE. I HAD ROAD THE BIKE TWO WEEKS BEFORE AND HAD NO PROBLEMS. IT SEEMS TO BE SOMETHING THAT HAPPENS VERY QUICKLY WITH NO WARNING. THIS COULD BE DEADLY ON THE ROAD!

NHTSA ODI #11133214

33,000 miles · Mar 6, 2018
Service Brakes

WHILE RIDING MY HD MOTORCYCLE, I TURN ONTO AN OFF RAMP FROM I-95. AS I APPROACHED THE INTERSECTION, I EASED INTO THE REAR BRAKE. I WAS GOING TO MAKE A RIGHT TURN AT THE INTERSECTION, AND AS I APPROACHED I RAN OVER A ROUGH SPOT IN THE ROAD, THIS MADE THE REAR TIRE LOCK UP VERY BRIEFLY AND I COULD FEEL THE ABS AT WORK. I THEN WENT…

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WHILE RIDING MY HD MOTORCYCLE, I TURN ONTO AN OFF RAMP FROM I-95. AS I APPROACHED THE INTERSECTION, I EASED INTO THE REAR BRAKE. I WAS GOING TO MAKE A RIGHT TURN AT THE INTERSECTION, AND AS I APPROACHED I RAN OVER A ROUGH SPOT IN THE ROAD, THIS MADE THE REAR TIRE LOCK UP VERY BRIEFLY AND I COULD FEEL THE ABS AT WORK. I THEN WENT TO PULL IN THE FRONT BRAKES FOR MORE AGGRESSIVE STOPPING AND THE BRAKE LEVER WAS COMPLETELY FROZEN IN PLACE. I COULD NOT PULL IT IN, I WAS FORTUNATE THAT I WAS NOT IN AN EMERGENCY STOP OTHERWISE I WOULD HAVE BEEN DOOMED. AFTER A SPLIT SECOND OF "THINKING THIS THROUGH" I IMMEDIATELY HAD TO BRAKE VERY AGGRESSIVELY WITH MY REAR BRAKE TO KEEP FROM RUNNING INTO CROSS TRAFFIC. I PULLED TO THE SIDE OF THE ROAD AND TRIED TO PULL THE LEVER AGAIN AND IT WOULD NOT PULL NOT MATTER HOW MUCH I TRIED. I HAD NEVER HAD ANY ISSUE WITH THIS BEFORE. THIS PROBLEM IS VERY DANGEROUS AND ALL THE TALK BY HD THAT IT IS BECAUSE OF NEGLECTED MAINTENANCE IS BULL!! I HAVE NOW HEARD OF PEOPLE HAVING THE SAME PROBLEM WITH BIKES THAT HAVE RECEIVED THE REGULAR 2 YR INTERVAL SERVICE. THIS IS A DESIGN FLAW!!! I NOW HAVE MY MOTORCYCLE AT THE DEALERSHIP BEING REPAIRED FOR THIS PROBLEM AND WAS SUPPOSED TO PICK IT UP TODAY BUT THE SAID THEY HAVE RECEIVED A BAD HCU UNIT AND HAD TO ORDER ANOTHER. TO MY KNOWLEDGE THEY HAVEN'T CHANGED ANYTHING ABOUT THE MODULE SO NOW I HAVE A $20000 DEATH TRAP! IT IS DESPICABLE HOW HARLEY HAS HANDLED THIS. I GOOD ANALOGY WOULD BE TO HAVE A CAR THAT HAS A CHRONIC PROBLEM WITH BLOWING ENGINES AND THE MANUFACTURER SAYS "OH BRING IT IN, WE KNOW THE ENGINE IS BLOWN BUT WE'RE GOING TO CHANGE THE OIL FOR FREE". THE DIFFERENCE IS, A BLOWN ENGINE USUALLY WON'T GET YOU KILLED! NHTSA SHOULD PUT THEIR FOOT DOWN ON THIS ONE!

NHTSA ODI #11076560

49,000 miles · Jan 12, 2017
Service Brakes

I HAVE A 2011 HARLEY DAVIDSON STREET GLIDE. THE ANTI-LOCK BRAKE SYSTEM (ABS) FAILED LAST WEEK AND I ALMOST COLLIDED WITH A CAR THAT HAD STOPPED IN FRONT OF ME. THE FRONT BRAKE FROZE AND WAS UNUSABLE. HARLEY REQUIRES YOU CHANGE THE BRAKE FLUID EVERY 2 YEARS WHICH I DO, ACTUALLY AT ABOUT EVERY $10K MILES. I'M ADAMANT ABOUT FLU…

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I HAVE A 2011 HARLEY DAVIDSON STREET GLIDE. THE ANTI-LOCK BRAKE SYSTEM (ABS) FAILED LAST WEEK AND I ALMOST COLLIDED WITH A CAR THAT HAD STOPPED IN FRONT OF ME. THE FRONT BRAKE FROZE AND WAS UNUSABLE. HARLEY REQUIRES YOU CHANGE THE BRAKE FLUID EVERY 2 YEARS WHICH I DO, ACTUALLY AT ABOUT EVERY $10K MILES. I'M ADAMANT ABOUT FLUID CHANGES. I CHANGE ENGINE OIL EVERY 5K MILES (AMSOIL) AND REPLACE ENGINE, TRANSMISSION, PRIMARY AND BRAKE FLUID EVERY $10K MILES. THIS IS A HUGE SAFETY ISSUE. NHTSA IS CURRENTLY INVESTIGATING 2008 - 2011 MODELS WITH ABS AND HAS RECEIVED 43 COMPLAINTS AND AT LEAST 3 CRASHES. THIS SEEMS TO BE A BID PROBLEM READING HARLEY FORUMS. HARLEY CLAIMS THAT THE MOISTURE FOUND IN OLD, CONTAMINATED BRAKE FLUID CAN DAMAGE THE ACTUATOR VALVES FOUND IN THE ANTI-LOCK BRAKING SYSTEM. NTHSA STATES ABS FAILURE WHICH COULD LEAD TO A SAFETY RECALL IN THE US, POSSIBLY FOLLOWED BY WORLDWIDE RECALLS OF UP TO 430,000 MOTORCYCLES. AFTER THE ABOVE INCIDENT I HAD A LOCAL MOTORCYCLE SHOP CHECK IT OUT, THEY FLUSHED THE BRAKE SYSTEM, TOOK IT OUT FOR A RIDE AND THE FRONT BRAKE FAILED AGAIN. I CALLED HARLEY, THEY STATED IT HAD TO BE CONFIRMED BY A HARLEY DEALER AND PROVIDED ME WITH A HARLEY ABS CASE FILE NUMBER: 2951309. THE LOCAL HARLEY DEALER PICKED IT UP TODAY AND CONFIRMED THE ABS MODULE NEED TO BE REPLACED. THEY CALLED HARLEY CORPORATE AND WAS TOLD: MOISTURE IN THE BRAKE FLUID CAUSED THE PROBLEM AND THEY WOULDN'T PAY FOR IT. I ASKED THE LOCAL HARLEY DEALER HOW CORPORATE COULD CLAIM THAT AND THE ANSWER WAS I HAD NO SERVICE RECORDS WITH THE HARLEY DEALER. I CALLED CORPORATE AND STATED I'VE BEEN DOING AS STATED ABOVE. BASICALLY I WAS TOLD I CAN'T PROVIDE INFO TO SUBSTANTIATE MY CLAIM. COMPLAINT HAS BEEN FILED WITH THE BBB AS WELL: BBB COMPLAINT ID 11933554

NHTSA ODI #10944679

20 miles · Sep 6, 2016
Service Brakes

SEPTEMBER 2, 2016 THE REAR BRAKES (ANTI-LOCK) LOCKED UP FOR THE SECOND TIME LEAVING ME STRANDED ON THE SIDE OF THE HIGHWAY. MAY 27, 2016 WAS THE FIRST TIME THEY LOCKED UP AND CAUSED A FIRE. ULTIMATELY COSTING $3500.00 IN DAMAGES GEICO COVERED. BILOXI HARLEY DAVIDSON REPAIRED THE BIKE IN MAY OF 2016 AND IS NOW IN POSSESSION OF TH…

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SEPTEMBER 2, 2016 THE REAR BRAKES (ANTI-LOCK) LOCKED UP FOR THE SECOND TIME LEAVING ME STRANDED ON THE SIDE OF THE HIGHWAY. MAY 27, 2016 WAS THE FIRST TIME THEY LOCKED UP AND CAUSED A FIRE. ULTIMATELY COSTING $3500.00 IN DAMAGES GEICO COVERED. BILOXI HARLEY DAVIDSON REPAIRED THE BIKE IN MAY OF 2016 AND IS NOW IN POSSESSION OF THE BIKE.

NHTSA ODI #10903719

21,000 miles · Jul 22, 2016
Service Brakes

REAR BRAKE PEDAL BOTTOMED, RESULTING IN SUDDEN LOSS OF REAR BRAKING. DRIVING ON HIGHWAY.

NHTSA ODI #10887735

100 miles · Jul 17, 2016
EngineInjury

LEG BURNS DUE TO EXCESSIVE HEAT FROM REAR ENGINE CYLINDER. MEASURE RADIANT HEAT AT 340 DEGREES. THIS HAS CAUSED RED BURN ON THE BACK OF THE RIGHT LEG. HEAT IS FELT WHILE IN MOTION ON 80 DEGREE DAYS. INCREASES DURING STOPS FOR LIGHTS. HAVE BROUGHT TO DEALER AND MANUFACTURERS ATTENTION OVER THE PAST 5 YEARS.

NHTSA ODI #10885325

Mileage unknown · Jul 13, 2016
Service BrakesCrashInjury

I HAD A CRASH WITH INJURIES BACK ON MARCH 15 2016 WHERE AS I RAN INTO THE RIGHT REAR CORNER OF A SUV THAT STOPPED FOR A CAR THAT WAS TURNING LEFT SUDDENLY IN FRONT OF ME AS WE TRAVELED DOWN A RURAL TWO LANE ROAD AND I COULDN'T STOP IN TIME BECAUSE, I FEEL THAT THE ANTILOCK BRAKES DIDN'T REACT IN TIME OR FAST ENOUGH, IF AT ALL. …

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I HAD A CRASH WITH INJURIES BACK ON MARCH 15 2016 WHERE AS I RAN INTO THE RIGHT REAR CORNER OF A SUV THAT STOPPED FOR A CAR THAT WAS TURNING LEFT SUDDENLY IN FRONT OF ME AS WE TRAVELED DOWN A RURAL TWO LANE ROAD AND I COULDN'T STOP IN TIME BECAUSE, I FEEL THAT THE ANTILOCK BRAKES DIDN'T REACT IN TIME OR FAST ENOUGH, IF AT ALL. I HAD JUST LEFT THE HOUSE GOING TO WORK WHEN THIS HAPPENED NOT EVEN A MILE FROM THE HOUSE. ..UPDATED 02/10/17 *BF *JS

NHTSA ODI #10884505

20 miles · Jul 8, 2016
Service BrakesFire

REAR BRAKES CAUGHT FIRE. DUE TO BRAKE DRAG

NHTSA ODI #10883607

Mileage unknown · Dec 4, 2012
EquipmentSteering

2011 HARLEY-DAVIDSON STREET GLIDE FLHX MOTORCYCLE. CONSUMER WRITES IN REGARDS TO ISSUE WITH VEHICLE HANDLEBARS. *TGW THE CONSUMER STATED WHILE RIDING THE BIKE, HE NOTICED THE FAIRING WAS SLIGHTLY CROOKED. WHEN HE TOOK THE BIKE TO THE REPAIR SHOP, FOR A RADIO PROBLEM, HE REQUESTED THAT THE TECHNICIAN INSPECT THE FAIRING. THE TEC…

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2011 HARLEY-DAVIDSON STREET GLIDE FLHX MOTORCYCLE. CONSUMER WRITES IN REGARDS TO ISSUE WITH VEHICLE HANDLEBARS. *TGW THE CONSUMER STATED WHILE RIDING THE BIKE, HE NOTICED THE FAIRING WAS SLIGHTLY CROOKED. WHEN HE TOOK THE BIKE TO THE REPAIR SHOP, FOR A RADIO PROBLEM, HE REQUESTED THAT THE TECHNICIAN INSPECT THE FAIRING. THE TECHNICAN STATED THE HANDLEBARS WERE BENT. *JB

NHTSA ODI #10488224

Official recalls

2

18V076000 · Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip; Service Brakes, Hydraulic:fluid

Jan 29, 2018

Harley-Davidson Motor Company (Harley-Davidson) is recalling all 2008-2011 Touring, CVO Touring and VSRC motorcycles equipped with anti-lock brakes (ABS), including Road King (FLHR), Road King Police (EFI) (FLHP), Road King Police (EFI) (FLHPE), Electra Glide Standard Police (EFI) (FLHTP), Electra Glide Classic (EFI) (FLHTC), Electra Glide Ultra Classic (EFI) (FLHTCU) and Street Glide (EFI) (FLHX), 2008 VROD (VRSCAWA), CVO Road King 4 (FLHRSE4), Night Rod (VRSCDA), CVO Ultra Classic 3 (FLHTCUSE3), Night Rod Special (VRSCDXA), 2008-2010 Road King Classic (EFI) (FLHRC), 2008-2009 Road Glide (EFI) (FLTR) and Electra Glide Standard (EFI) (FLHT), 2009-2010 V-Rod (VRSCAW), 2009 CVO Ultra Classic (FLHTCUSE4) and CVO Road Glide 3 (FLTRSE3), 2009-2011 Night Rod Special (VRSCDX) and V-Rod Muscle (VRSCF), 2010 CVO Ultra Classic 5 (FLHTCUSE5) and CVO Street Glide (FLHXSE), 2010-2011 Electra Glide Ultra Limited (FLHTK) and Road Glide Custom (FLTRX), 2011 Road Glide Ultra 103 (FLTRU103), Street Glide 103 (FLHX103), Road King Classic 103 (FLHRC103), CVO Ultra Classic 6 (FLHTCUSE6), CVO Road Glide Ultra (FLTRUSE), Road Glide Custom 103 (FLTRX103), and CVO Street Glide 2 (FLHXSE2) motorcycles. Deposits may form on components within the brake system if the DOT 4 brake fluid is not replaced for a prolonged period of time beyond the 2-year maintenance schedule specified in the Owner’s Manual.

Consequence & remedy

Consequence: These deposits may cause a valve within the ABS Hydraulic Control Unit to stick, reducing braking ability and increasing the risk of a crash.

Remedy: Harley-Davidson will notify owners, and dealers will flush the entire brake system with new Platinum Label DOT 4 brake fluid, free of charge. The recall began on February 14, 2018. Owners may contact Harley-Davidson customer service at 1-800-258-2464. Harley-Davidson's number for this recall is 0171.

Additional source detail variants (2)

Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip

Harley-Davidson Motor Company (Harley-Davidson) is recalling all 2008-2011 Touring, CVO Touring and VSRC motorcycles equipped with anti-lock brakes (ABS), including Road King (FLHR), Road King Police (EFI) (FLHP), Road King Police (EFI) (FLHPE), Electra Glide Standard Police (EFI) (FLHTP), Electra Glide Classic (EFI) (FLHTC), Electra Glide Ultra Classic (EFI) (FLHTCU) and Street Glide (EFI) (FLHX), 2008 VROD (VRSCAWA), CVO Road King 4 (FLHRSE4), Night Rod (VRSCDA), CVO Ultra Classic 3 (FLHTCUSE3), Night Rod Special (VRSCDXA), 2008-2010 Road King Classic (EFI) (FLHRC), 2008-2009 Road Glide (EFI) (FLTR) and Electra Glide Standard (EFI) (FLHT), 2009-2010 V-Rod (VRSCAW), 2009 CVO Ultra Classic (FLHTCUSE4) and CVO Road Glide 3 (FLTRSE3), 2009-2011 Night Rod Special (VRSCDX) and V-Rod Muscle (VRSCF), 2010 CVO Ultra Classic 5 (FLHTCUSE5) and CVO Street Glide (FLHXSE), 2010-2011 Electra Glide Ultra Limited (FLHTK) and Road Glide Custom (FLTRX), 2011 Road Glide Ultra 103 (FLTRU103), Street Glide 103 (FLHX103), Road King Classic 103 (FLHRC103), CVO Ultra Classic 6 (FLHTCUSE6), CVO Road Glide Ultra (FLTRUSE), Road Glide Custom 103 (FLTRX103), and CVO Street Glide 2 (FLHXSE2) motorcycles. Deposits may form on components within the brake system if the DOT 4 brake fluid is not replaced for a prolonged period of time beyond the 2-year maintenance schedule specified in the Owner’s Manual.

Consequence: These deposits may cause a valve within the ABS Hydraulic Control Unit to stick, reducing braking ability and increasing the risk of a crash.

Remedy: Harley-Davidson will notify owners, and dealers will flush the entire brake system with new Platinum Label DOT 4 brake fluid, free of charge. The recall began on February 14, 2018. Owners may contact Harley-Davidson customer service at 1-800-258-2464. Harley-Davidson's number for this recall is 0171.

Service Brakes, Hydraulic:fluid

Harley-Davidson Motor Company (Harley-Davidson) is recalling all 2008-2011 Touring, CVO Touring and VSRC motorcycles equipped with anti-lock brakes (ABS), including Road King (FLHR), Road King Police (EFI) (FLHP), Road King Police (EFI) (FLHPE), Electra Glide Standard Police (EFI) (FLHTP), Electra Glide Classic (EFI) (FLHTC), Electra Glide Ultra Classic (EFI) (FLHTCU) and Street Glide (EFI) (FLHX), 2008 VROD (VRSCAWA), CVO Road King 4 (FLHRSE4), Night Rod (VRSCDA), CVO Ultra Classic 3 (FLHTCUSE3), Night Rod Special (VRSCDXA), 2008-2010 Road King Classic (EFI) (FLHRC), 2008-2009 Road Glide (EFI) (FLTR) and Electra Glide Standard (EFI) (FLHT), 2009-2010 V-Rod (VRSCAW), 2009 CVO Ultra Classic (FLHTCUSE4) and CVO Road Glide 3 (FLTRSE3), 2009-2011 Night Rod Special (VRSCDX) and V-Rod Muscle (VRSCF), 2010 CVO Ultra Classic 5 (FLHTCUSE5) and CVO Street Glide (FLHXSE), 2010-2011 Electra Glide Ultra Limited (FLHTK) and Road Glide Custom (FLTRX), 2011 Road Glide Ultra 103 (FLTRU103), Street Glide 103 (FLHX103), Road King Classic 103 (FLHRC103), CVO Ultra Classic 6 (FLHTCUSE6), CVO Road Glide Ultra (FLTRUSE), Road Glide Custom 103 (FLTRX103), and CVO Street Glide 2 (FLHXSE2) motorcycles. Deposits may form on components within the brake system if the DOT 4 brake fluid is not replaced for a prolonged period of time beyond the 2-year maintenance schedule specified in the Owner’s Manual.

Consequence: These deposits may cause a valve within the ABS Hydraulic Control Unit to stick, reducing braking ability and increasing the risk of a crash.

Remedy: Harley-Davidson will notify owners, and dealers will flush the entire brake system with new Platinum Label DOT 4 brake fluid, free of charge. The recall began on February 14, 2018. Owners may contact Harley-Davidson customer service at 1-800-258-2464. Harley-Davidson's number for this recall is 0171.

11V506000 · Exterior Lighting:brake Lights:switch

Oct 19, 2011

HARLEY-DAVIDSON IS RECALLING CERTAIN MODEL YEAR 2009-2012 TOURING, CVO TOURING AND TRIKE VEHICLES MANUFACTURED FROM JUNE 6, 2008, THROUGH SEPTEMBER 16, 2011. SEE THE ABOVE LIST FOR THE MODELS INCLUDED IN THE RECALL. THE REAR BRAKE LIGHT SWITCH MAY BE EXPOSED TO EXCESSIVE HEAT FROM THE EXHAUST SYSTEM.

Consequence & remedy

Consequence: THE EXCESSIVE HEAT MAY CAUSE THE SWITCH TO NOT ACTIVATE THE BRAKE LAMP OR ACTIVATE THE BRAKE LAMP WHEN NO BRAKE IS APPLIED AND/OR CAUSE A BRAKE FLUID LEAK AT THE BRAKE LIGHT SWITCH, AFFECTING REAR BRAKE PERFORMANCE. EITHER CONDITION MAY INCREASE THE RISK OF A CRASH.

Remedy: HARLEY-DAVIDSON WILL NOTIFY OWNERS, AND DEALERS WILL A INSTALL A REAR BRAKE LIGHT SWITCH KIT, FREE OF CHARGE. THE SAFETY RECALL IS EXPECTED TO BEGIN DURING OCTOBER 31, 2011. OWNERS MAY CONTACT HARLEY-DAVIDSON AT 1-414-343-4056.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

1

PE16009 · Sudden Brake Failure - Motorcycle

Opened Jul 6, 2016 · Closed Apr 23, 2018

Status: closed (inferred from source dates) · Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip:control Unit/module

The Office of Defects Investigation (ODI) opened this investigation in July 2016 based on forty-three (43) Vehicle Owner Questionnaires (VOQ).During the course of this investigation ODI received a total of 145 VOQs related to the alleged defect on the subject motorcycles.Owners allege they experience a sudden and complete loss of brakes on one or both wheels.To better understand the cause of the braking issue on the subject motorcycles, ODI requested NHTSA's Vehicle Research and Test Center (VRTC) conduct inspections and testing of affected vehicle braking systems.Through its work, VRTC determined that deposits were forming on the valves in the Hydraulic Control Unit (HCU) of the Antilock Braking System (ABS). These deposits could prevent the proper function of the HCU and render the brakes ineffective.To understand why deposits were forming in the HCU, Harley Davidson completed an analysis of the Dow 460 brake fluid used as original equipment on the subject motorcycles and determined that it had stability issues if left in the brake system for an extended period of time.Harley Davidson found that if a brake fluid flush was not conducted as outlined in the owner?s manual for the motorcycles, and was left in the system for a period of time beyond their recommendation; deposits could form in the HCU.Through further testing, Harley Davidson identified an alternate, commercially available, brake fluid that did not have the same stability issues as the original fluid and could stop the proliferation of any current brake system deposits.ODI sent Information Request (IR) letters to Harley Davidson and Dow Chemical (the supplier of the brake fluid on the subject motorcycles) to collect information about the subject bikes and the alleged defect.Harley Davidson responded in full on Sept 30, 2016 and Dow responded with a confidential submission on October 25, 2017.ODI analyzed the information contained in both IR responses and concluded that motorcycles manufactured during Model Years (MY) 2008, 2009, 2010, and 2011 were failing at a rate greater than their peers.Based on this analysis and the brake fluid study conducted by Harley Davidson, a group of motorcycles was identified that were potentially affected by the instability of the original brake fluid.2008 marked the introduction of ABS on Harley Davidson motorcycles and a change in the Dow 460 brake fluid used in the 2012 MY vehicles provided the bases for the scope of the affected population.With recall action 18V-076 taken by Harley Davidson this investigation is closed as further use of agency resources does not appear to be warranted.The ODI reports cited above can be reviewed at: https://www.nhtsa.gov/ using the complaint identification numbers attached to this resume.