AutoDefect IQ

2005 Triumph Rocket Iii problems, complaints & recalls

Most-reported problem areas: Electrical System (5) · Power Train:manual Transmission (4) · Engine And Engine Cooling:engine (2)

🧭 Reliability snapshot

84 /100
✓ Typical or better for this model

Compared against other Triumph Rocket Iii model years — complaint volume vs the model's median year, recalls and severity. How we score →

🛣️ Complaints by mileage

<25k miles: 16 complaints 16 <25k 25–50k miles: 4 complaints 25–50k 50–75k miles: 0 complaints 50–75k 75–100k miles: 0 complaints 75–100k 100–125k miles: 0 complaints 100–125k 125–150k miles: 0 complaints 125–150k 150k+ miles: 0 complaints 150k+

20 NHTSA complaints that reported an odometer reading.

20
Complaints
0
Recalls
96
Service bulletins
0
Crashes reported
0
Fires reported
0
Deaths

Safety recalls (0)

No recalls on record for this model year (campaigns announced since 2010).

Service bulletins (96)

Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.

Electrical System 2026-09-22 · COM2_35786 · Service Bulletin/Repair Instructions

dealer notice announcing the availability of daignostic software and dealers should begin using it immediately.

Electrical System 2026-07-14 · COM1-35109 · Service Bulletin/Repair Instructions

dealer notice announcing the availability of triumph diagnostic tool 2026-07 and dealers should begin using it immediately.

Electrical System 2026-06-23 · COM2 - 34886 · Service Bulletin/Repair Instructions

dealer notice announcing the availability of triumph diagnostic tool 2026-06.1 and dealers should begin using it immediately.

Electrical System 2026-05-19 · COM6 - 34491 · Service Bulletin/Repair Instructions

dealer notice announcing the availability of triumph diagnostic tool version 2026-06 and dealers should begin using it immediately.

Unknown Or Other 2026-05-19 · COM5 - 34490 · Service Bulletin/Repair Instructions

dealer notice announcing the availability of technical bulletin 264.

Unknown Or Other 2026-05-18 · TB264 · Service Bulletin/Repair Instructions

technical bulletin 264 provides instructions that relates to: triumph diagnostic tool - new motorcycle connection and diagnostics workflow, triumph diagnostic tool - end of support for microsoft windows 10.

Showing the 6 most recent of 96 bulletins. Search all of them free at nhtsa.gov.

What owners report

2016-05-04 · Electrical System · 30,000 mi

“the rocket iii has a known history of ignition failure and total electrical failure. the bike will simply turn off, often in the process of steering. the triumph rat forums are full of stories highlighting this problem, and my bike alone has had the ignition switch replaced multiple times, but triumph refuses to address the problem.…”

2014-06-30 · Engine · 15,700 mi

“under acceleration, engine has a rattle like a spray paint can. i've done some research, and this is a common problem leading to engine failure, due to a timing chain/sprocket issue. i would like triumph to issue a recall to fix this, before it fails. *tr…”

2013-10-12 · Electrical System · 8,500 mi

“at app. 8,500 miles going down the interstate motor just shut off. in the past year several times the instrument panel was not working. switched bike off then back on started working. took it to the local triumph dealer today. owner said it was the ignition switch was failing. told me $400.00 plus for part. didn't even ask what cost to put it on w…”

2011-07-24 · Electrical System · 30,050 mi

“i was riding my motorcycle to work. the ignition failed, causing the engine to quit momentarily. this problem happened on the way home, then again in the parking lot on the way into work the next morning. that evening, the engine wouldn't start at all. it turned out to be a loose solder joint in the ignition module. numerous owners of this mod…”

2011-07-19 · Fuel System, Gasoline · 29,000 mi

“tl* the contact owns a 2005 triumph rocket iii motorcycle. the contact stated that while driving 55 mph, the engine would rev very high and cause problems while shifting. the vehicle was repaired in 2007 under nhtsa campaign id number 07v455000 (fuel system, gasoline:fuel injection system); however, four years later, the failure recurred. the vehic…”

2009-05-12 · Power Train:manual Transmission · 15,500 mi

“transmission linkage disconnects in side transso you either get stuck in gear or neutral 2nd time this happned. *tr…”

2008-09-10 · Power Train:manual Transmission · 21,000 mi

“bike jumps out of 2nd gear or wont go into 3rd, almost got runover. the sounds from the engine appear to be like a paint can rattle. there was a recall for the rear drive locking down and the idle stalling in traffic. *tr…”

2008-04-13 · Engine And Engine Cooling · 1 mi

“i own a 2005 rocket 3 purchased new. i have experienced many problems as i still am with engine noise (rattling). i had brought this to the dealers attention when first service was performed and was told these sounds were "normal". also the front directional tire was installed from the factory the wrong direction. (dealer replaced tire free of char…”

2008-02-20 · Power Train:manual Transmission · 22,000 mi

“tl*the contact owns a 2005 triumph rocket iii. the contact stated that the output shaft bearing was installed backwards. this causes the bearing not to receive oil, the output shaft to stop turning, locks the rear tire, and the upper shaft creates a hole in the engine. furthermore, the failure causes the engine to lose oil and the rear tire to b…”

2007-10-12 · Power Train:driveline · 200 mi

“i own a 2005 triumph rocket motorcycle that produced excessive engine noise because of worn key ways in the cam chain. i was told when i first purchased the bike that these noises are normal. having researched web sites concerning this issue i have found that his is prevalent in 2005 rocket 3 models due to the above listed problem. triumph has fi…”

Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.

Other Triumph Rocket Iii years