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  • Thanks Gaston :-) I like your BTA hydration solution, and that stem is very very cool!
    The covers are just cones of 0.5mm polystyrene sheet, joined (on the inside) with duct tape (because solvent welding may cause the cover warp in future). These were temporarily inverted in order to apply auto wrap vinyl, with a felt squeegee and a heat gun.
    It would have been nice to attach the cover using the same piece of vinyl, i.e., to avoid using electrical tape, but that was a step too far, as the outlying vinyl became distorted when it was used to secure the piece to my work surface (a glass kitchen hob top), during application. This would also make correct, concentric positioning of the cover to the wheel very difficult.
    The plastic join is still visible under the vinyl, but it's as good a job as I can hope to do without stumbling upon a correct-sized/shaped RALTech cover, so I'm happy :-)
    The side with no valve hole weighs just under 120g, so >24o/wheel + about 15g of tape.

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