Superbike pacesetter Michael Dunlop said he has more to come after powering to provisional pole at the North West 200 on the Hawk Racing BMW.
Dunlop produced a scorching lap late in the session to nudge 15-time winner Alastair Seeley (Briggs BMW) back to second place, setting a day one benchmark of 121.652mph.
The 27-year-old, having his first outing on the machine on the roads this year, said: “Aye, it was steady enough. That is our first run out with the Superbike and we have a bit to go yet with it but now we have a guide.”
Seeley was half-a-second behind and was satisfied with the performance of his S1000RR on day one but had a near miss after running the kerb at Juniper Hill on his final lap.
“I hit the footpath at Juniper on the last lap and did a bit of moto-crossing but I wasn't on a quick lap anyway,” said the Carrick man, who only needs one more win to become the most successful rider ever at the event.
“We have a couple of tweaks to make to the bike and then I will happier but it is coping well with the bumps and that makes it easier.”
Tyco BMW's Ian Hutchinson clocked 120.894mph as he finished 1.6 seconds back on Dunlop, but the Bingley Bullet – who, like Dunlop, went through the speed trap at 203.4mph – was more than happy with his performance on Tuesday.
“I am never a great qualifier but I am on the front row in each class so I am happy enough with that,” said Hutchinson, who finished as the runner-up in last year's only Superbike race behind Seeley.
“I don't think we have much more work to do with the bikes really.”