Our products

Engines are ordered as required. We receive them within 10 days of ordering

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 CMB 21 Evo.4 Gear drive


Spares still available for the 21LS

The latest CMB 21 Evo.4 engine
Available to order now. Price may vary depending on the current exchange rate for the Euro

NEW UPRATED 2015 V5 ENGINE

CMB 45 V5 Direct Drive The latest version of the Direct Drive engine now has a modified carb to enable better throttling at low speed and makes it very usable throughout its rev band. This engine is the replacement for the Earlier VAC45 hydro.  Designed to be more powerfull with altered timings, stroke and bore. 
Engine has a CNC machined large bore carb and comes with the seperate third channel mixture valve, or can be fitted with the remote mixture valve on the carb.

C.M.B. 67 Hydro Racing

A drum valve rear induction engine now avaiable with a new twin needle carburretor for better throtling at lower revs, than the venturi carb origanally fitted to both the 67 & 80 motors, which did not allow the engine to tick over at slow speeds. The 67 along with its big brother the 80RS feature the longer stroke engine, redesigned crankcase porting & new carb.



We still have spares available for the CMB 67 Evo & GP motors.
Crank rebuilds available on all engines.

C.M.B. 80  Hydro Racing
The big brother to the 67 with a bigger capacity & more torque, enlarged transfer ports. Comes complete with the twin needle carb.

CMB 91 RS M-Line engine 

NEW
The latest 15cc engine from CMB 91RS.3 delivering loads of power. This engine has a new Crankcase, crankshaft, front housing, 4 bolt water jacket and a much revised Piston/liner set with 5 inlet ports an 3 exhaust ports.

The CMB 27cc engine.
A completely new 27cc petrol engine which is capable of 22.000rpm. Comes complete with exhaust header & coupling.

CMB 28.5cc petrol engine complete with exhaust system

TO ORDER ONLY