Cylinder -AF RB22 225 cc- Lambretta

Preview: Cylinder -AF RB22 225 cc- Lambretta

Description

Bore 70 mm, stroke 58 mm, Nikasil coated aluminium cylinder: Exhaust 180° - area 1240 mm², transfer port 122° - area 1068 mm², inlet - diaphragm controlled - area 1807 mm², pre-exhaust 29°.

The RB22 kit is a performance superior brother to the well proven TS1 cylinder from AF.

The cylinder layout is clearly inspired from the MotoX range.

The inlet is controlled by two very wide 4 valve diaphragms. The arrangement of the diaphragms results in a V-shape.

From the inlet port, channels go directly into the overflowers, in addition there is a boost port.

The area of the outlet was increased by two secondary outlet channels.

The piston used is the ASSO piston known from the TS1.

The scope of supply includes the cylinder and the piston, the diaphragm and the intake port.

In terms of processing, it cannot yet hold a candle to the TS1 manufactured by the Italian top foundry Gilardoni. Neither of the casting nor of the coating quality.

In the deposited diagram you can see the RB22 cylinder with a crankshaft with 62 mm stroke, timing 131° overflow, 195° exhaust, 32° forward exhaust. Carburettor Mikuni 38 mm. The green reference run is an Indian GP 200 engine completely original (SH22 carburetor, Indian Big Bore exhaust).
Do you have questions about the diagram or the cylinder: lambretta@scooter-center.com
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€668.99 *

incl. VAT plus shipping costs

Available immediately (delivery time 1-3 working days*)

P For this item you get fidelity point/s

General
performance class:	racing, sport
Gudgeon pins
diameter:	16 mm
Cylinders
displacement:	223 cm³
bore:	70 mm
engine type:	2-stroke
type of cooling:	air cooled
material:	aluminium
material piston cylinder surface:	Ceramic
cylinder head inclusive:
cylinder gasket set inclusive:
number of transfers (incl.boost ports):	6
number of boost ports:	2
shape exhaust port:	triple port
exhaust mounting:	flange
flange type:	2 studs
Crankshafts
stroke:	58 mm
Pistons
number of piston rings:	2
production method piston:	cast
Piston rings
piston ring type:	common ring
thickness rings:	1,0mm
Circlips
circlip type:	double G-type
wire size of circlip:	1,25mm

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