Af - RB22 -225 High performance race 225 cylinder kit WITH WOSSNER PISTON  39MM  FOR 107/110 CONRODS 

Includes;- Alloy barrel - piston/rings - 8 petal reed valve- gaskets - inlet manifold To ensure our customers get the best out of this new kit, both in terms of performance and reliability we recommend that only experienced mechanics/tuners fit these kits,

 AF RECOMMENDED MINIMUM ENGINE SPEC:-- Based on a brand new SIL Engine the following is the minimum engine specification required to reliably run the RB22. Cutting corners will result in greater expense and possibly life threatening failure.

This is a high performance kit not for the foolish or faint hearted.-- RB22 Kit, AF 225 Head, RB AF 58mm 107/119 rod Race Crank, Machined Crownwheel, heavy duty Clutch Springs and Centre Spring, Aluminium Top Chain Guide, possibly a Strong Selector Spring. This kit should only be run with an appropriate Expansion System and Suitable Open Carb, we recommend RB Rally NK Expansion/ RB Road Race NK/ franspeed Expansion and 30mm carb upwards...............................................

The engine should be thoroughly checked to ensure it has no other problems with repairs and replacement components fitted as required. The crankshaft is especially important. We can up-rate an existing AF Race crank with a special 15 roller big end bearing, or re-rod an existing crank with our new RB con-rod kit with 18 roller IKO bearing or supply a complete replacement RB AF Race Crank that has been developed specifically for the kit....................................-

We have full confidence that the RB20/22/25 offers a fantastic level of performance with a sublime power delivery ideally suited to those customers who want a fast road Lambretta that is a pleasure to ride with others, but can also provide that adrenaline-fuelled grin when the throttle is wound open.............................-------

Important information you should know regarding your engine set up and provide to the servicing dealer-----

Typical TASS RB ENGINE SET UP- Bore of Cylinder 70mm- - Stroke of crankshaft 58mm-- Spec of any additional porting None -- Gearbox Indian GP200 -- Front Sprocket 19 Tooth -- Crownwheel 46 Tooth-- Clutch type  Modified 5 plate or 6 plate - Timing 17º Before Top Dead Centre Compression Ratio 9.5:1 Squish Clearance 1.2 -1.5mm Carburettor 30/34mm Dellorto /MUKINI 35MM/30mm kehin Exhaust System RB Race / FRANSPEED RACE.Electronic Kit -Light Flywheel/mid weight