Hi

What's the (nominal) thickness of the pre-formed tapes - the same as 2/2 195g cloth (.28mm)?

Looking at custom bicycle 'guards, so want an arc of circa 850mm length by 25mm width on a 280mm radius,  but the clearance between tyre and frame is ~1.5mm, so there's not a lot of room for multiple layers...

Yes thats right it is about the same nominal thickness.  Obviously this will vary slightly in the finish product depending on the process used. Generally for resin infusion or vacuum bagging you are looking at 4 layers per mm. However with wet lay it can be 3 layers per mm as it is not compressed so much.

Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant

Ta.

Sticky fingers coming up then...