from my small personal experience..(about 3000 miles) but also from long term reviews on the "net"....the Interceptor 650 is about as reliable as you can get....no major reliability issues.....(possible a few tiny minor issues...but this can happen with any brand of bike)
Even the so called "brand name" bikes are actually built in factories in various countries...like Triumph is built in Thailand. My Suzuki was built in Spain..my Honda was built in Malaysia...
I thing modern manufacturing methods, as well as computer design has made a pretty level playing field as far as quality over different brands, and places or manufacture.
RE is using Bosch electronics...ECU....ABS brakes etc. Brakes themselves are Brembo cheepo version, still good...
Hey, if you have doubts aobut "modern" Royal Enfiled..just watch "Itchy Boots" she's traveled the world, mostly off road..on a Himalaya...
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Well my question was from the reliability point of view and to understand how many people consider these reliable enough to use them as primary bikes.
I know the twins have much better quality as compared to the other bikes royal enfield sells.