BG Aerobite Boost Reel 200m Seat Post Clamps It's as simple as that

It's as simple as that

Decreased rear derailleur and chain tension in low gear

racks or bags

or serious cyclist

the exit angle has been changed from 90 degrees to 47 degrees

BG Aerobite Boost Reel 200m Seat Post Clamps It's as simple as thatA hybrid multifilament string engineered for maximum control without sacrificing repulsion. The vertical strings are made of VectranTM, a super fiber more than twice as powerful as nylon. SPECS More Information Color(s) Dark Gray Yellow Gauge mains 0. 72 mm; crosses 0. 61 mm Length mains 5. 5 m (18 ft) crosses 5 m (16 ft) Core High Intensity Nylon Multifilament, Super Fiber: Vectran (mains only) Outer High Polymer Braided Nylon Fiber, Oval Shaped