BMW R 1250 GS (K50) vs KTM 1290 Super Adventure S (MY2021)

R 1250 GS

Strengths

• Boxer torque from the bottom
• All-day touring comfort
• Light steering, full luggage
• An engine that just lasts
• Brakes that outlast belief

Trade-offs

• Driveshaft corrosion is real
• Notchy, imprecise gearbox
• Weight kills off-road nerve
• Convenience electronics wear out
• Mass at standstill and during low-speed manoeuvres

1290 Super Adventure S

What owners say

Strengths

• Explosive and torquey V-twin engine
• Advanced electronics and rider aids
• Agile handling despite its size
• Plush, adjustable suspension

Trade-offs

• Reliability concerns and electrical gremlins

R 1250 GS

• Gearbox input shaft overload risk under repeated rapid speed differentials Recall 23V011000 Under specific operating conditions, repeated rapid speed differentials between engine and final drive can overload the gearbox input shaft, leading to shaft damage or breakage and possible rear-wheel lock-up. BMW issued a worldwide ECU software update (drivetrain protection software) in January 2023. The KBA mandated remedy completion by December 2023 in Germany under threat of operating ban.
• Front brake caliper inner seal incompatibility — fluid weeping while parked Recall 20V476000 Inner seal/seal-groove incompatibility on certain front brake calipers can cause brake fluid to weep while the motorcycle is parked. Reduced reservoir level over time impairs braking performance. Fails FMVSS 122. Affects motorcycles produced 13 September 2018 – 13 March 2020 (NHTSA campaign 20V476000).
• Paralever joint pin material non-conformance — risk of contact with rear wheel spokes (NHTSA Recall 20V-165) Recall 20V165000 Material non-conformance on the Paralever joint pin on a small batch of bikes produced 31 October 2019 – 30 January 2020 (R 1250 GS / GSA / R nineT family). The defective component could contact rear-wheel spokes — potential loss of control. Approximately 440 units affected across DK, IE, UK, IT.
• Condensation in Paralever swingarm corrodes drive shaft splines Condensation collects in the hollow Paralever swingarm and corrodes the drive shaft and U-joint splines, eventually impairing power transfer. BMW issued voluntary worldwide Service Action 0033130000 covering ~440,000 R 1200 / R 1250 GS bikes. Production fix from October 2021 onward; later units carry two vent valves.
• Steady-throttle surge in the 2,500–3,000 rpm cruising window Steady-throttle surging in the 2,500–3,000 rpm window, characteristic of Euro-spec lean fuelling for emissions compliance. Some dealers advise against cruising in that range. Aftermarket fuelling modules (BoosterPlug, AF-Xied) are commonly used to mitigate. The MY2021 Euro 5 recalibration changed fuelling but did not fully eliminate the complaint pattern.
• TFT blank screen, "white box" artifact, Connectivity App pairing failures Reports of the TFT display going blank at startup, displaying a "white box" artifact, or failing to pair reliably with the BMW Motorrad Connected app via Bluetooth. Often correlated with weak/aging battery; usually resolved by software update or battery replacement.
• Audible left-cylinder ticking — undersized cam chain tensioner Audible ticking or rattle from the left cylinder, especially once warmed up. Caused by an undersized left-side cam chain tensioner allowing slack in the cam chain. BMW released an updated tensioner part (P/N 11317108586) with revised internal dimension. Some bikes show the noise as early as 930 mi (1,500 km). Not confirmed to compromise engine longevity, but persistent and a very common owner complaint.
• Exhaust servo-actuated flap valve seizes / fails The servo-actuated exhaust flap (in the collector / front pipe area, present for noise-emissions homologation) seizes or fails, sometimes as early as 4,700–8,000 mi. Triggers warning lights. The bike runs without performance impact if a flap-eliminator module is fitted. Replacement of front pipes has been done under warranty in multiple cases.
• Brake fluid reservoir cap labelling non-compliance Recall 20V166000 The brake fluid reservoir cap may not clearly state the required brake fluid type — risk of incorrect fluid being added during top-up. Replacement label/cap issued.
• Tire pressure / vehicle label adhesion non-compliance (FMVSS 120) Recall 20V495000 Tire pressure / vehicle labels may not remain affixed to the bike, contrary to FMVSS 120 compliance. Replacement labels issued.

1290 Super Adventure S

• High-speed wobble Owners report a headshake or weave developing at higher speeds, most often with luggage or a pillion aboard, or when the front tire is worn or unevenly loaded. The bars can shimmy noticeably until the rider backs off the throttle. Careful attention to tire condition and wheel balance, along with front preload and fork damping settings, usually calms the behavior.
• Fuel pump failure Some owners have experienced sudden fuel pump failure, leaving the bike stranded. A known issue with KTM, though not widespread.
• Engine misfire requiring multiple dealer visits Intermittent engine misfire in the mid-range that can resist diagnosis, with owners reporting repeated dealer visits over an extended period before a fix is found. Points to tricky fault-finding and possible parts-supply delays rather than a single failed part.
• Electrical gremlins and intermittent faults Reports of TFT display blanking, fuel gauge failure, and random warning lights. Often traced to voltage sensitivity during starting; keeping battery fully charged and starting in neutral can mitigate.