LD1
Epic Contributor
The previous owner had filled my fronts with calcium. The small 12" tubes were not designed for filling and the valves both rotted out resulting in trashed rims.
Based on my experience I'd not suggest filling them.
When I did manage to renew the front rims (without loading) I never noticed any change in stability or performance.
There is major differences between stem designs meant for loading.
While the performance difference is indeed minimal, you wouldnt have had issues if loaded with anything but calcium.