06/25/2026
Bridgestone took a huge leap forward with the Battlax RS12. The rear tire in particular is much more resistant to wear compared to the RS11, which had good grip, but was prone to tearing. I initially ran it at 32 psi cold, but even at 57-58 degrees of lean angle, I still wasn't touching the very edge of the tire. That was odd and probably meant the tire pressure was too high. Even then, the grip was impressive with minimal wiggle on corner exit under hard acceleration. Later, I dropped the pressure to 28 psi cold and it felt even better with no signs of tearing, just exceptional wear characteristics.
The front RS12 felt outstanding from the beginning, with a quick-turning profile that was a noticeable improvement over the Metzeler Racetec RR (K3) that came stock on the BMW. The K3 front is a great tire in its own right, but it hit the wear bars much quicker in comparison. Running the RS12 front at 33 psi cold, I noticed it was wearing a bit fast; not tearing, just balling aggressively. Bumping it up by an additional psi made it slightly better. The front tire appeared to be wearing at the same rate, if not quicker, than the rear. By my last day at the Dragon I noticed a slight wear lip, a transition ridge between the heavily used portion of the tire and the edge. But both the wear rate and this lip could be attributed to my riding style which uses aggressive trail braking on corner entry.
The real hurdle for the RS12 is the price point. I bought mine with a $70 rebate, but that deal ended in May. In most online stores, a superbike-sized set runs nearly $600. That makes them more expensive than the Michelin Power Cup 2, which in my opinion is the current benchmark for road-legal fast tires and offers excellent longevity. Would I pick the RS12 over the Cup 2? Unlikely, though I’d need to test the Battlax on the track for that level of scrutiny.
Overall, I highly recommend the RS12 if you want top-tier grip out of a street tire or need a tire that works both on road or track.