Engine Specification - (£2550.00)

• Casings with mounts and plain side casing
• RB 250 Cylinder JB stage 1 with MRB race tour piston
• AF 60mm crank (244cc) welded and aligned
• MRB seal plate
• Bearing and seal kit (Jap bearings)
• Five plate Surflex clutch kit
• JB tuning light clutch basket
• Up rated clutch springs
• Iwis chain
• GP 200 Gearbox
• MRB chain guide with spread plate kit 
• JB cylinder studs
• JB re- profiled head
• Short fin lightened flywheel
• Bgn stator plate
• 35mm Mikuni TMX, complete carb kit
• Choice of JB franspeed 3 or JB Franspeed race pipe.
• Cylinder and casings ported.

Optional extra’s available - (on top of price)

• JB Super Corsa Cranshaft 
• Porting to next stage
• Casings welded (increases transfer area for greater BHP and torque)
• Centre plug head 
• Blasted casings

We also offer a service where we can pre dyno your engine to set ignition timing and carburettor settings.There s is an additional fee of £110.00 for this service.

Please selet from the drop down menu any optional extras you require -

All engines come with an itemised spec sheet, stating shims used,squish clearance, torque settings and running in instructions etc