105 BB-5500 Fenders Defender iGlow TX combines a

Defender iGlow TX combines a compact trekking bike fender set with Integral Glow (iGlow) Illumination technology for safety at night and low visibility conditions

Less fatigue in the feet and calf muscles

Behind the heritage and support of the USTA

An essential tool to properly service and maintain forks and shocks

Ability to increase stack up to 70mm with optional Aerobar Bracket Riser Kit

105 BB-5500 Fenders Defender iGlow TX combines aAs a direct descendent of Dura Ace, no other road component group provides the same cost performance value as Shimano 105. The Octalink V1 8 spline interface between the BB and crank arm forms a strong highly rigid connection that reduces weight and increases strength.