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Transmission and drivetrainPart report

2007 Harley-Davidson Flhx Transmission and drivetrain Problems

Complaints
9about this part
Share
45%of 20 total for the year
Median mileage
6,050miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 9 complaints about the transmission and drivetrain of the 2007 Harley-Davidson Flhx, 45% of the 20 complaints for this model year. Where a mileage was given, the median is 6,050 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“The compensator sprocket failed which destroyed the clutch basket that sent chunks of the clutch basket into the primary chain locking up the motor instantly at 65 miles an hour luckily I've rode my entire life and didn't crash or get hit this has been an on going problem since the new primary set up was introduced harley will not take this problem seriously I guess not enough people have crashed or died”

NHTSA complaint #10747329, filed 2015-08, 65,000 miles

“At 70 MPH on my 2007 harley davidson FLHX the compensator broke apart. I could hear some noise on the left side where the primary cover is. After stopping and then starting the motor back up, when I placed the transmission back in gear the primary locked up and froze everything up. If this happened while driving this could have been deadly. If you look at forums, this seams to be a problem with all of the newer harley's with the 96 motor. With mine braking the way it did, it messed up the transmission shaft as well as the main engine shaft resulting in a (estimated) $6000 repair. …”

NHTSA complaint #10520778, filed 2013-06, 40,125 miles

“The motor cycles overheats when the outside temp rises above 80 degrees. Once it overheats the bike starts to back fire and runs ruff. Dealer has no fix for it. Bike also makes a noise when it is in 5th gear. Once again dealer has no fix for the problem. I have talked with several dealers they know about the problems but will not do anything.”

NHTSA complaint #10203593, filed 2007-09, 500 miles

“All touring harleys from 07-10 with stock compensator sprockets seen to fail around 25,000 miles and have to be replaced do to weak diaphragm springs.”

NHTSA complaint #10547605, filed 2013-10, 20,000 miles

“The contact owns a 2007 harley davidson FLHX. While driving between 0-30 MPH, the vehicle would suddenly shift from the driving gear into neutral gear. The vehicle was taken to an authorized dealership where the transmission was replaced. Also while driving 30 MPH, the rear wheel suddenly locked. The vehicle had not been inspected or repaired for that problem at the time of the complaint. The failure mileage was approximately 2,000. The current mileage was approximately 6,000.”

NHTSA complaint #10334994, filed 2010-06, 2,000 miles

Related service bulletins

Transmission and drivetrain: other model years

YearComplaintsShare of year
2024110%
2018563%
2017240%
2014225%
2012213%
201014%
2009310%
2008413%
2007945%

Other parts of the 2007 Harley-Davidson Flhx

Engine cooling
6 complaintsSteering
2 complaintsSuspension
2 complaintsTires
2 complaintsElectrical system
1 complaintsEngine
1 complaintsEquipment
1 complaintsFuel system
1 complaintsWheels
1 complaints

← All problems reported for the 2007 Harley-Davidson Flhx

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology