flat sided- create an inner structure for strength, although they can be hollow it would help reduce chances of the sides delaminating under load/flex of the wheel in general.
lenticular- the tension of the sides can be sufficient if done well. - i rode on a wheel made out of a rim with a surface made from a polyester bed sheet doped in resin and it didnt break however front disc wheels are death at the best of times and it didnt have the best handling characteristics given uneven weight distribution.
id have thought..
flat sided- create an inner structure for strength, although they can be hollow it would help reduce chances of the sides delaminating under load/flex of the wheel in general.
lenticular- the tension of the sides can be sufficient if done well. - i rode on a wheel made out of a rim with a surface made from a polyester bed sheet doped in resin and it didnt break however front disc wheels are death at the best of times and it didnt have the best handling characteristics given uneven weight distribution.