Purposefully designed for the rigors of all day Epic adventures with a 31.8 mm clamp for added stiffness & more responsive control 3D forged & machined construction for maximum strength to weight ratio Shot peened&44; anodized finish increases fatigue strength Forged 4-bolt front clamp holds handlebar securely RIP stems have Knock-Rated 2 year no-questions warranty Made from 6061-T6 aluminium for a balance of stiffness & weight Machined rear clamp & polished cap for smashing good looks Weight: 160 grams (0 90 mm)