Radstock Kawasaki star Luke Hawkins begins his defence of the Premiership Motocross Championship in the first round of the new Phoenix Tools-backed series at Kingsteignton, near Newton Abbot, tomorrow.
He faces a tough task, as the line-up includes British Championship contenders Elliott Banks-Browne, Brad Anderson and Nathan Parker, as well as past winners of the series, Bristol's John May and Jamie Skuse.
Other top-line riders include Alex Snow, Luke Mellows, James Dodd, Tommy Alba, Kelvin Townsend and prolific teenagers Ty and Todd Kellett, as well as Josh Gilbert, who has recently attained experts status having come up through the schoolboy ranks.
The over-40 years of age class entry includes five former champions in Nick Life, Mark Wilde, Martin Tucker, Richard Cuff and Keith Hanson.
Although Banks-Browne, Anderson and Parker are not expected to complete the whole series owing to World and British commitments, they can have an impact on the series by deflecting points away from those who will compete in all ten rounds.
The venue will be marked off the Newton Abbot by-pass – and the first race commences shortly after 10am.
With reigning champion Robyn and Sam Luscombe recently announcing their retirement, Bristol's Jon Tuck and Matt Sparks start favourites to win their fifth British sidecar trials title, the first two rounds of which get underway in the West of England club organised event near Bovey Tracey this morning.
Twenty of Britain's top three-wheeler aces have entered the event which gets underway from the Riverside public house, near Bovey Tracey, after which they face 40 sub-sections at Bottor Rocks, Shapter Rocks and Kelly Farm.
The event also includes solo non-experts and riders of twin shock and British Bikes, who will compete on the same route as the three-wheelers.
Rivalling Tuck will be their near neighbours Andy Scrivens and Martin Lawford and Rupert Kimber, Peter Dale, Darryl Dale and Keiron Hankins and partners, while Dave Tuck and Steve Chandler will be competing in the expert class with Phil Sparks and partner.
The entry move almost en bloc to Trethurgy near St Austell for Sunday's second round, which will be staged at the popular Garker group of sections that the organising Camborne-Redruth clubs have "borrowed" from the Camel Vale club.
The fourth round of the South West Centre solo trials Championship takes place at Cove, near Bampton, tomorrow, in which current title- holder Joe Baker will be out to avenge his last round defeat by Ricky Wiggins.
Other main contenders in action over three laps of a dozen sections at Marwoods Farm include Nick, James and Jordan Baker, Rob Wrayford, George and Rob Pollard, Jason and Alex Lawer, and Toby and Tim Martyn.
Jason Hamblin and Simon Prideaux clash for the third time this year in the North Somerset club's timed and observation trial at Malthouse Farm, Chelwood tomorrow.
Other regular award winners taking part in the hour-long event include Jeremy Cross, Paul Manning, Stuart and Ben Sinclair, Andy Frost, Tom Smith and Dan Dark.
Today: West of England MCC British Sidecar Championship trial, The Riverside Inn, Bovey Tracey (9.30am); Somerton MCC trial, Beaconsfield Farm, West Harptree, Somerset (1pm); Midwest MCC enduro, Chavenage Farm, Tetbury, Gloucester (9am).
Tomorrow: Camborne Redruth MCC British Sidecar Championship trial, Trethurgy near St Austell, Cornwall (9am); North Somerset MSC Timed and Observation trial, Malthouse Farm, Chelwood near Bristol (10.30am); Midwest MCC enduro, Chavenage Farm, Tetbury, Gloucestershire (9am); Premier Motocross Series, Phoenix Moto Park, Kingsteignton near Newton Abbot (10am ; Tiverton MCC South West Championship trial, Marwoods Farm, Cove near Bampton, Devon (10am); Bath Classic MCC trial, Binegar Quarry, Gurney Slade, Somerset (10.30am, late venue change).