Silkworm is an exclusive material incorporated into the casing of select models, increasing puncture and tear resistance. Silkworm is featured under the tread as a breaker.At 30 grams, it sounds more like a heavier fabric than more layers.
SpeculationMonkey rulz!
SilkShield offers protection from bead to bead whereas Silkworm is found under the tread only.
SilkShield provides an additional level of protection for sidewalls as well as under the tread.
DoubleDown
DoubleDown (DD) is the next step in the evolution of the dual-ply tire casing for enduro racing. Two 120 TPI casing layers reinforced with a butyl insert provide the enduro racer with the support and protection of a downhill tire, but in a lighter package.
https://www.maxxis.com/technology/bike-technology
Imo, the butyl insert is what makes the DD great. My problem has always been pinching tires, and DD has solved that. So EXO+ is a pass from me. Until I hear otherwise...
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