TVS Sport Tyres

The Triumph Street Twin is shod with 100/90-18 at the front and 150/70 R17 at the rear. For the front tyre, you can choose between Ralco Speed Blaster, Pirelli Sport Demon and Continental Conti Road Attack 3. And for the rear, the options come as Metzeler Tourance Next and Pirelli Scorpio Trail 2.

Tyre upsizing is not recommended by the motorcycle makers as it affects the fuel mileage and performance of any bike. And in Gixxer SF 155 there is not much of scope for upsize, hence it is better to stick to the stock tyre size. Although, to ensure high speed stability and planted performance you can pick Apollo Alpha S1 for rear and Michelin Pilot Sporty for the front.

Hence, if you are satisfied with the performance of the existing Pirelli Sport Demon tyres, which are the best you can get in the segment, you can continue with it. Other tyre patterns for 100/90-18 front tyre include Metzeler ME 880 and Metzeler Lasertec for 130/70-18 rear tyre.

You seem to be talking about the rear Royal Enfield Interceptor 650 tyre that reads a size of 130/70-18 63H. Here in the load index and speed rating are given in codes as '63' and 'H' which stands for 272 kgs and 210 km per hour respectively. Hence you easily carry a pillion rider along. Moreover, the Pirelli Sport Demon 130/70-18 also comes with the same load index and speed rating as the Pirelli Phantom Sportscomp. Therefore, without any worries, you can accelerate and get the pillion on.

You can choose Apollo Alpha S1, or else pick Metzeler Sportec Street. Both these tyres have tried and tested results in terms of high-speed stability and cornering.