Shimano Tiagra 4703 Front Derailleur Accessories pack a highly ventilated trampoline-style AirSpeed

a highly ventilated trampoline-style AirSpeed backpanel and more than four inches of adjustability in its harness so you can tailor the fit to your specific needs

but they also add a touch of warmth in cool weather

-Ultra-fine jersey knit

Proven Filtration: Hollow fiber filtration media is the same technology as our most popular and field-proven filters

Beautifully embroidered patch

Shimano Tiagra 4703 Front Derailleur Accessories pack a highly ventilated trampoline-style AirSpeedSleek, balanced and consistent. The Tiagra 4700 series provides serious entry level riding performance with cascaded technology from DURA ACE. Light action More ergonomic operation Less chain drop New chain guide and FC gear shape with HG X chain Braze on support bolt improves stability Front Derailleur Cable Pull: Bottom Pull Max Chainring: 50 Tooth Chain wrap capacity: 20 Tooth Speed: 3x10