Honda

MotoGP lap times on day two at a private test session held at the new Circuit of the Americas in Austin, Texas.

First look at Alvaro Bautista's 2013 Gresini Honda MotoGP colours

Luca Marini rumoured to be in line for a debut Moto3 appearance at the San Marino Grand Prix.

"I was just a couple of hours of track time short of matching what I'd done on the Aprilia, which for a brand new bike ridden in anger for the first time at 2pm is unreal" - Michael Laverty.

'We've seen some progress in terms of both the time and the consistency, and I had a better feeling with the bike and was able to improve a little' - Nicky Hayden

'We needed to understand better whether that bike is good or not, and it was positive, as it helps me with the final part of braking and the first part of corner entry' - Andrea Dovizioso

MotoGP lap times as of 6pm - the end of the second day at the second official 2013 test, held at Sepang.

Carlos Checa is briefly knocked unconscious in an accident at Phillip Island, but otherwise escapes major injury.

Full race results for opening round of the 2013 World Supersport Championship at Phillip Island, Australia.

Full qualifying times (2) from the opening round of the 2013 World Superbike Championship at Phillip Island, Australia

Full lap times from the third and final day of the second Moto3 test of the year, held at Jerez in Spain.

Suzuki engineers present during ECU MotoGP visit to Magneti Marelli

The FIM confirms 19 full-time riders will be represented across six manufacturers in the 2013 World Superbike Championship - each of them European.

Ducati to stick with Desmodromic valve system for MotoGP engine.

Six manufacturers will be represented in the 2013 World Supersport Championship, including the return of MV Agusta.

Lotus has been released from its contract as an engine supplier to the IZOD IndyCar Series and will not return to the competition in 2013, it's been confirmed.

Honda lends its backing to a new Moto2 World Championship team headed up by former 500GP race winner Tadayuki Okada.

Go & Fun will provide title backing for Gresini's MotoGP and Moto3 efforts in 2013, 2014 and 2015, it is announced.

An announcement from the Grand Prix Commission on Saturday at the season-ending Valencia round declared the following changes for the 2014 MotoGP season...

Race winning team WFR announces it is quitting the British Superbike Championship after two successful seasons in the series.

Shane Byrne's name is carved into the British Superbike Championship trophy for the third time, as Kawasaki celebrates its first title in 20 years!

Shane Byrne makes it three wins from three at Brands Hatch to seal the 2012 MCE British Superbike Championship title in superb style.

Reports from Italy suggest that IndyCar officials are talking with the management of the Mugello circuit in Italy about hosting an event in the IZOD IndyCar Series.

Max Biaggi emerges on top of the closest and most keenly fought World Superbike Championship fight in the history of the series...