2021 Ktm 790 Adventure R problems, complaints & recalls

2026-05-11 · Vehicle Speed Control

“i recently discovered that the brake light does not activate when applying the front brake lever. i became aware of the issue only after noticing that the motorcycle’s cruise control system would no longer engage. upon researching the cruise control malfunction, i found numerous reports from owners indicating that failed front or rear brake pressu…”

2025-08-06 · Engine

“the valve train of my bike failed and left me stranded in the woods. there were no signs or warnings beforehand. after further research online, i found that this issue has been happening quite a bit. luckily it happened to me while my bike was parked. the issue is the valve train is wearing out prematurely and causing the bikes to run poorly or no…”

2025-06-19 · Service Brakes

“i have had three separate incidences of the either the front or rear brake sensor switch failing which requires replacement. it causes the brake light to not function. i do have one of the three switches for inspection. it has been confirmed by a mechanic. as it is out of warrantee there has been no manufacturer inspection. there is no indicatio…”

2024-09-09 · Service Brakes

“good day to whoever is reading! i've recently discovered that my brake light does not turn on on my bike no matter what brake i use front or rear. only way it works if i push brake really hard, like way beyond regular or emergency braking. i've found similar issues online and people pointing on faulty brake sensors. they are located under the gas…”

2024-09-05 · Service Brakes

“brake light no longer activates upon applying normal pressure to front brake lever. brake light activation requires greater than normal front brake lever pressure/input in order to activate the light. this issue causes a safety concern with traffic when the motorcycle brake light does not activate appropriately when stopping. this issue is consis…”

2024-04-04 · Engine

“i have checked the cam shafts condition at only 3900 miles since there are a lot of people with the same motorcycle mentioning this issue and there is an unsuspected wear starting to happen. motorcycle always ran on recommended motorex oil and air filter was maintained as it should be.…”

2023-05-22 · Engine

“difficult cold start ups. when the bike is cold or has been sitting for 1-2 weeks and i start it up intermittently the bike has problems starting up and running. will stall out and need to attempt to restart it several times before it will run. appears to be running on a single cylinder for 30-45 seconds when it does finally start up then will run …”

2022-11-21 · Tires:bead

“tire size 90/90-21 front tire inflated with motorcycle manufacturers recommended psi without warning it instantly deflats. i had this happen twice with the same tire. once deflated it causes the tire to debead off the rim while riding and renders the motorcycle nearly uncontrollable. especially dangerous in a curve or turn. my riding skill kept m…”

2022-02-06 · Unknown Or Other

“1) the vehicle tft display containing important data such as speed etc.. blacks out on occasion. the vehicle itself is still functional but with the display blacked out the operator has no speed information, or information about the vehicle such as fuel levels and abs control. ktm has been made aware of the issue as it has affected multiple users w…”

2022-02-01 · Power Train

“motorcycle hard/impossible to start. excessive valve wear. currently unrideable due to mechanical problems. motorcycle stalled at intersection of busy highway, would not start creating hazard of being hit in the intersection and while pushing it to side of road. mechanic inspected vehicle, found excessive wear to valvetrain causing engine power lo…”