basis: 200cc engine casing with Li or GP-crankshaft (107mm rod)
usage: very heavy tuning
power: 26 hp (estimated)
manufacturer barrel: AF Rayspeed, England
material: alloy cylinder with nikasil plating
port timings: 182 / 127,7
manufacturer piston: Asso, Italia
method: die cast
rings: 2x 1,0mm chrome
compression height: 39mm
gudgeon pin: 16mm
The RB is the newest development from AF Rayspeed. It is an advancement of the TS-1 but does not substitute it.
In terms of power it a class above the TS-1.
It is the most powerful cylinder out of the box you can buy at the moment.
The alloy cylinder with the Nikasil coating makes it very reliable.
The complete kit includes barrel, Asso piston, reed valve, intake manifold, gaskets.
Attention: A special RB exhaust is needed, Ts-1 exhausts need to be modified to use on the RB.
The TS-1 flange still can be used.
New version: 2x1.0mm chrome rings