Retrobike Touring.

[widowmaker]

Candle wax for the traditionalist.
Rub the candle along the teeth

Thanks!

 

[bikeworkshop]

Silicone. I like the paint on stuff, but spray would do it.

I'm sure this modern solution is objectively superior, but that's not why we are here, is it

 

[rwm1962]

Run a soft pencil over the teeth - graphite.

 

[Guinessisgoodforyou]

Run a soft pencil over the teeth - graphite.

+1