CHIEFS at Darley Moor MCRRC have revealed changes to their class structure for 2020 which will allow 700cc twins to duke it out with the 650s.
The club’s Twins class, which this season featured a displacement limit of 650cc for four-stroke two-cylinders along with 820cc for air-cooled two-strokes, is broadening its horizons next season and allowing a host of other bikes to join the party.
With the new 700cc limit for the upcoming year, Darley joins Thundersport GB in allowing machines such as the Yamaha MT07 and Aprilia’s new RS660 to join the party against Supertwins. But no over-bores are allowed, meaning Suzuki SV and ER6/Z650 Kawasaki fans will have to stick with the stock 650cc.
The Twins class will take over what was previously known as the Mini Sound of Thunder category, while it looks as if the Sound of Thunder class itself is no more.
Full list of Darley Moor classes for 2020:
1A Junior Championship for Formula 125, Ninja 300 and restricted 450cc Aprilia max age 18 years.
1B Senior Championship as above but aged over 18 years
2 Classic & Forgotten Era Class up to 250cc to CRMC or Forgotten Era Eligibility Rules
Classic & Forgotten Era Class 251 t0 500cc to CRMC or Forgotten Era Eligibility Rules
Classic & Forgotten Era Class 501 to 1300cc to CRMC or Forgotten Era Eligibility Rules
3 Lightweight Class up to 400cc 4 strokes and 250cc 2 strokes open tyres
4 Honda CB 500 and Suzuki Bandit 600 Class
5 Formula 600 class including 750cc triples and 636 Kawasakis
6 Pre – Electronic Injection class up to 600cc & 750cc twins
7 Twin Cylinder up to 700cc 4 stroke twin Cylinder and 820cc Air cooled 2 strokes. No over-bores permitted
8 Open Solos up to 750cc 2 strokes and up to 1300cc 4 strokes with separate Class awards for Pre-injection class NO FORMULA 600
9 Peak Cup any solo machine up to 750cc two stroke or 1300cc four stroke.
10 The Allcomers Cup for any machine up to 650cc twin cylinder four strokes entered in any of the above classes. (No 600cc machines)
11 The Allcomers cup for 600cc and open class machines, entered in any of the above classes.
Classes 10 & 11 will be held after practice and will be one race of 10 laps for each class.
12a Open sidecars for any sidecar to 1300cc four stroke and 750cc two stroke. This class will include the Triumph 675cc TT class.
12b. Formula 600 Sidecars – complying with ACU Formula 600 Sidecar specifications.
The onus of eligibility for all classes rests with the rider.
*Image: Tony Else