THE BIKES...
FASCINATING 306 FACT (HONEST): When the crankcases cracked in 306's debut at Rowrah, disposable nappies were strapped under the motor in a bid to soak up the leaking oil. The back tyre had to be cleaned off between races.
SPECIFICATION
WR306RR

ENGINE
Air-cooled 88cc single-cylinder four-stroke based on Honda C90. Four-speed manual gearbox.

CARBURETTOR
24mm Mikuni flatslide.

EXHAUST
Stainless steel Akrapovic downpipe with underseat titanium end-can.

CHASSIS
Yamaha TZR125 frame, swingarm, forks, front wheel and front brake caliper. Yamaha TZR250 seat unit. Aprilia RS50 rear wheel and rear brake caliper. Kawasaki ZX-9R front brake master cylinder with CRG billet aluminium levers attached to Race Products clip-on bars.

SUSPENSION
EMC rear shock with adjustable preload and damping, 31mm Yamaha TZR front forks with adjustment for nothing. Absolutely nothing.

TYRES
Bridgestone BT39SS.

WR408
Honda CG125 flat-track replica.
2008-on
WR104/WR106
Funked-up C90 supermotos.
2004-on
WR306 was a Yamaha TZR125 chassis, with beefed-up EMC rear shock and sticky Bridgestone tyres that made it handle better than anything we'd previously lashed up. The Zongshen motor was transferred from WR205, but not much of the original Zongshen stuff is left after the crankcases broke in 306's first outing, leaving us to fit a tougher Honda bottom-end.

Its unreliablity was enough to see off Billy Silcox, who went club racing after finishing the 2006 season. The others continued into 2007, but it was a year of mechanical pain and two major engine blow-ups. The second was terminal as there was no sign of a piston when the cylinder head was removed. The project was immediately abandoned.
WR306RR
Yamaha TZR125 chassis with tuned Monkey motor.
2006-2007
DID YOU CARE?

Weeble thought 306RR was uncomfortable. Poor thing (the bike, not Weeble).
WR205
Tuned Monkey motor in bendy RD50 frame. Ouch.
2005