For me, the Street Triple R wins by a narrow margin for its reliability. Triumph's track record for reliability is hard to beat, but Aprilia's are great.

Kawasaki Z800 is a better option over the Triumph Street Triple. It comes with a 806 cc, 4-cylinder engine producing 111.3 BHP @ 10,200 rpm and 83 NM @ 8,000 rpm. It comes with a 6-speed gearbox and gets a kerb weight of 229 kg. It gets a 17 liter fuel tank and a high seat height of 834 mm. The bike gets dual 310 mm floating front disc brakes whereas the rear gets a solid 250 mm disc brake. The bike also comes with USD suspension for the front and a price tag of INR 8,05,000.

Kawasaki Z800 - The Undisputed Super Middleweight

You should go for the Triumph Street Triple as the bike has a 34 mm lower seat height when compared to the Kawasaki Z800. The bike comes with a 800 mm of seat height and a kerb weight of 188 kg. It comes with a 675 cc, liquid-cooled, 12 valve, DOHC, in-line 3-cylinder engine producing 77.7 BHP @ 11,050 rpm and 57 Nm @ 8,375 rpm. The bike is very powerful and reaches a top speed of 220 kmph. It comes with twin front 310 mm floating disc brakes and a single rear 220 mm disc brake. The motor gets a 6-speed transmission. At INR 7,50,000 the Street Triple would be an ideal choice for you for a weekly get away.