CONTROLTECH品牌是1989年由一群單車愛好者在美國西雅圖創立,致力於研並提供騎乘者最好的產品。 1990年專注登山車相關的零配件,2000年後延伸產品線至公路車、計時車及三鐵車的領域。 The EXL 10mm layback clamp is ideal for reducing steep seat angles, and lengthening short frames. Its low weight – just 253.5g – reduces inertia for faster direction changes. The aligned fibers of unidirectional carbon allow a very precise layup for huge strength in critical directions. The long-lasting stainless steel hardware holds saddles and seatpost together solidly. Available in the three major diameters: 27.2mm, 30.9mm and 31.6mm. Available in two lengths – 350mm and 400mm – to suit all frame and rider sizes.