The Ken":1b300jo2 said:they replace rim tape - one in each spoke hole on the rim. I guess if a wheel has a low number of spokes it would save weight.
the bumpf
Veloplug - the best idea since the invention of clincher rims,
made available by Velocity, the rim makers from Australia.
Rim tape usually weigh about 20 grams.
32 Veloplugs weigh only 5 grams.
Fewer spokes - then the savings are greater.
Tyre mounting is easier with the Veloplugs.
Incredible blow strength. Tyre start to fail long before the Veloplug.
Veloplugs can be used over and over.
Veloplugs (red) fit in 8 mm holes