![Vincita Co., Ltd. Accessories H012 ERGOTEC Ahead-Swell Eco Ahead 31.8, Length 10cm (Oversize)](http://vincita.cc/cdn/shop/products/h012-ergotec-ahead-swell-eco-ahead-31-8-length-10cm-oversize-vincita-co-ltd-accessories-2283162884_{width}x.jpg?v=1564232325)
If the bike has a stem with adjustable angle, then the position of the handlebars can be precisely “fine-tuned”. Angle adjustment is possible in both ahead stems and quill stems.
Dimension
Bare bore: 31.8
Extension: 100 mm
Clamp - D : 28.6
Weight : 295 g
Product Code: H012