A butted spoke is drawn to its specific profile, which defines its high strength.
The strongest spoke in Sapim's product range, the Strong is developed for specific and heavy usage such as tandem, e-bikes or heavy load use. In case of large hub holes, the Strong is the recommended choice.
Technical specs

Weight: (64 pcs x 260mm) 446g
Quality: Stainless
Strength on middle section: 1250 N/mm2
Diameter: 2.3 - 2.0 mm
Nipples sold seperately

Overview

Silver
Single butted 
13/14 Gauge
2.3mm - 2.0mm
Weight: 446g (64x260mm)
Fatigue Tests: 1.6 Million Revolutions
Strength Tests: 1400 N/mm2