Bladder Size

[parilla]

Does anyone know the bladder size for a Conway Stewart Scribe 333?

[gweimer1]

Do you know the outside diameter of the section where the sac attaches?

[parilla]

I could measure it, but I am not sure that i would be able to do so accurately without a vernier gauge. It is 6mm to within an accuracy of 0.5 mm and this is probably going to be close enough given that rubber stretches. But I would like to be sure since I will need to order online. Thanks for your reply.

[northlodge]

you can sort most vintage CS models out with either a 16 or 18 size sac (the dinkies and big duros excepted)

 

From memory the 333 is a full size, but slightly slimmer model, so a 16 would be my guess

[parilla]

Thanks, I will order a few of those sizes for the 266 and others I have

[parilla]

sorry, my mind was on another pen, It is the 333, not the 266 that needs a new sac

[mallymal1]

Size 16 should do very nicely.