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CMB. 45RS EVO Direct drive
NEW ENGINE DUE IN APRIL

The latest version of the 45RS with the the 7.3mm crankpin & bushed front housing. The engine has a longer stroke than the 45Evo engines and delivers a lot more revs. A twin ballraced supported cranshaft & larger transfer ports. Engine is quite happy to run on 10% nitro but for best performance 16% to 25% nitro is recommended.
4.5HP at 31,000 rpm.
Bore 21.8mm
Stroke 20.0 mm.
Displacement 7.46cc
Note
Engine spares still available for the 45 Evo & 45 Evo 2/2 models.
No crank spares for the 7.2mm 2/2 crank rebuild.

CMB 45RS  EVO Gear drive.
With the same spec. as the direct drive engine. A truly high reving 7.5cc motor. 4.5HP at 31,000 rpm. Now with the stronger 7.3mm crankpin & bronze bushed front housing seal.

CMB 45 water cooled 18deg.manifold, complete with "O" ring and retaining spring

Disk valve for the 45 Evo 2/2 purple head engine

 CMB 45RS Evo direct drive crankshaft

CMB Rs45 Evo2  Tuned quiet pipe with fitted water cooling jacket and 90 deg. pressure nipple..

Standard silenced tuned pipe is discontinued and out of stock

CMB 21 4 thous. alloy head shim

CMB 45 8 thous. alloy shim

45RS crankcase

CMB 45Rs ABC piston/liner set

CMB 45 piston pin, all 45 engines

CMB 45 piston pin clips

45Rs 7.3mm conrod

CMB 45RS 7.3mm crankpin

CMB 45RS Direct Drive Crankshaft now fitted with the larger 7.3mm crankpin for extra strength.

CMB main bearing

CMB genuine small crankshaft bearing

TO CLEAR £50.98 Front housing for the 45Rs.

Front housing steel spacing bush

Flywheel cone

CMB 45Rs & Evo Disc valve

CMB45 Twin needle Carb with third channel mixture control

Third servo operated needle valve assembly fits on carb.

Main needle for servo operated valve

Carb barrel lever

Carb "O" ring set

Remote needle valve assembly also for 67 engine