I
Irish John
Guest
Hi Guys, All my bikes have Grubee Stage 2 gearboxes which are no longer available. I have recently got a Grubee stage 3 gearbox and I notice it has a different clutch (wider black thing) and also the final drive sprocket is a fixed 10T on a shaft that is smaller and so unable to take the 11T freewheel that I am used to.
My question is this:
Does anyone know what size of rear sprocket goes with this GB with its 10T fixed dive sprocket so that it performs to the same standard as the 48T on the old Mark2 GB?
Can someone tell me why the operating cable is in 2 sections?
Presumably this GB will makethe bike harder to pedal with the engine off because the gearbox final driveshaft will be turnng.
I'd be very grateful to hear what people have to say about the Mark3 GB.
My question is this:
Does anyone know what size of rear sprocket goes with this GB with its 10T fixed dive sprocket so that it performs to the same standard as the 48T on the old Mark2 GB?
Can someone tell me why the operating cable is in 2 sections?
Presumably this GB will makethe bike harder to pedal with the engine off because the gearbox final driveshaft will be turnng.
I'd be very grateful to hear what people have to say about the Mark3 GB.
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