ergotec ergotec ergotec ergotec ergotec ergotec ergotec ergotec ergotec stuurpen ahead piranha 31 8 100 zwart zandThe Ergotec Ahead 28. 6 31. 8, 6 Piranha stem is a sturdy and reliable stem for your bike. With a length of 100 mm and a 31. 8 mm drop, this stem offers optimal control and comfort while cycling. Made of high quality AL 2014 T6 aluminum, this stem is durable and lightweight, weighing in at just 120 grams. The sandblast black finish gives your bike a rugged look. Stem type: Ahead Fork diameter: 28. 6 mm Handlebar diameter: 31. 8 mm Stem length: 100 mm