Britain's Shane Byrne once again topped the timesheets in dry testing this afternoon at the World Superbike tests in Portugal.

Byrne kept his Sterilgarda Ducati ahead of Yamaha's Ben Spies and Xerox Ducati's Noriyuki Haga with a blistering 1'43.294 lap which is inside Troy Bayliss' track  record.

Spies was two-tenths down on Byrne, while Haga was half a second slower. Tom Sykes made his first real impression of the tests, coming in fourth ahead of Carlos Checa and Max Neukirchner.

Checa's team-mate Jonathan Rea was the next-fastest Brit in ninth with Leon Haslam just beind in tenth, a little under a second off the pace.
Superbikes day two, session two:
1 67 Byrne S. (GBR) Ducati 1098R 1'43.294
2 19 Spies B. (USA) Yamaha YZF R1 1'43.484
3 41 Haga N. (JPN) Ducati 1098R 1'43.487
4 66 Sykes T. (GBR) Yamaha YZF R1 1'43.546
5 7 Checa C. (ESP) Honda CBR1000RR 1'43.657
6 76 Neukirchner M. (GER) Suzuki GSX-R 1000 K9 1'43.674
7 96 Smrz J. (CZE) Ducati 1098R 1'43.767
8 84 Fabrizio M. (ITA) Ducati 1098R 1'43.951
9 65 Rea J. (GBR) Honda CBR1000RR 1'44.115
10 91 Haslam L. (GBR) Honda CBR1000RR 1'44.170
11 71 Kagayama Y. (JPN) Suzuki GSX-R 1000 K9 1'44.425
12 11 Corser T. (AUS) BMW S1000 RR 1'44.479
13 55 Laconi R. (FRA) Ducati 1098R 1'44.546
14 9 Kiyonari R. (JPN) Honda CBR1000RR 1'44.610
15 23 Parkes B. (AUS) Kawasaki ZX 10R 1'44.704
16 53 Polita A. (ITA) Ducati 1098R 1'45.108
17 56 Nakano S. (JPN) Aprilia RSV4 1'45.179
18 3 Biaggi M. (ITA) Aprilia RSV4 1'45.260
19 24 Roberts B. (AUS) Ducati 1098R 1'45.278
20 25 Salom D. (ESP) Kawasaki ZX 10R 1'45.393
21 100 Tamada M. (JPN) Kawasaki ZX 10R 1'45.446
22 36 Lavilla G. (ESP) Honda CBR1000RR 1'45.672
23 33 Hill T. (GBR) Honda CBR1000RR 1'45.679
24 99 Scassa L. (ITA) Kawasaki ZX 10R 1'45.820
25 111 Xaus R. (ESP) BMW S1000 RR 1'46.128
26 44 Rolfo R. (ITA) Honda CBR1000RR 1'46.916
27 77 Iannuzzo V. (ITA) Honda CBR1000RR 1'46.971
Supersport day two, session two:
1 26 Lascorz J. (ESP) Kawasaki ZX-6R 1'45.214
2 35 Crutchlow C. (GBR) Yamaha YZF R6 1'45.264
3 54 Sofuoglu K. (TUR) Honda CBR600RR 1'45.397
4 117 Praia M. (POR) Honda CBR600RR 1'45.757
5 1 Pitt A. (AUS) Honda CBR600RR 1'45.817
6 50 Laverty E. (IRL) Honda CBR600RR 1'45.960
7 77 Veneman B. (NED) Suzuki GSX-R600 1'45.971
8 51 Pirro M. (ITA) Yamaha YZF R6 1'46.018
9 69 Nannelli G. (ITA) Triumph Daytona 675 1'46.024
10 99 Foret F. (FRA) Yamaha YZF R6 1'46.036
11 24 McCoy G. (AUS) Triumph Daytona 675 1'46.220
12 14 Lagrive M. (FRA) Honda CBR600RR 1'46.561
13 105 Vizziello G. (ITA) Honda CBR600RR 1'46.633
14 55 Roccoli M. (ITA) Honda CBR600RR 1'46.712
15 8 Aitchison M. (AUS) Honda CBR600RR 1'46.911
16 127 Harms R. (DEN) Honda CBR600RR 1'47.041
17 21 Fujiwara K. (JPN) Kawasaki ZX-6R 1'47.095
18 13 West A. (AUS) Honda CBR600RR 1'47.270
19 30 Günther J. (GER) Honda CBR600RR 1'47.508
20 7 Vostárek P. (CZE) Honda CBR600RR 1'48.131
21 83 Holland R. (AUS) Honda CBR600RR 1'48.311
22 19 Szkopek P. (POL) Triumph Daytona 675 1'48.331
23 96 Smrz M. (CZE) Triumph Daytona 675 1'48.364
24 28 Vos A. (NED) Honda CBR600RR 1'48.459
25 9 Dell'Omo D. (ITA) Honda CBR600RR 1'48.849
26 32 Lai F. (ITA) Honda CBR600RR 1'49.149
27 5 Pradita Doni T. (INA) Yamaha YZF R6 1'51.338
28 88 Guerra Y. (ESP) Yamaha YZF R6 1'51.480
29 71 Morillas Cuenca J. (ESP) Yamaha YZF R6 1'53.407