Castelli Prologo 7 Long Sleeve Cycling Jersey - Fiery Red/Light Black/Ivory - XL ES The XTR M9100 series of

The XTR M9100 series of derailleurs brings a new level of drivetrain silence thank to decreased tension in the low gear position and an added bumper on the pulley cage

Full Front Zip for easy access

meaning you'll spend less time in the workshop and more time out on the road enjoying their effortless performance

Extensive front-to-back ventilation channels are fed by 3 large upper eyeport intake ports and 2 aggressive brow intake ports

External cable set

Castelli Prologo 7 Long Sleeve Cycling Jersey - Fiery Red/Light Black/Ivory - XL ES The XTR M9100 series ofCastelli Prologo 7 Long Sleeve Cycling Jersey Fiery Red Light Black Ivory XL The Prologo 7 Long Sleeve Jersey from Castelli is perfect for chilly days that require something warmer than a normal jersey. Made of a breathable, moisture wicking fabric, you wont get too cold during fast descents. Even if the sun decides to shine through on a chilly day, the fabric will protect you thanks to its UV resistant properties. The Prologo 7 Long Sleeve Jersey