Shimano EW-JC302Shimano Di2 Frame Junction Box Frame Junction Box connects via SD50 E tube wires to four different points: front derailleur, rear derailleur, cockpit junction box and battery mount All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions Use Di2 system checker to update component firmware from http: e tubeproject. shimano. com

Compatible with Speedster family Model Year 2022

The exceptional comfort and versatility of the SPEEDPLAY COMP road pedal derives from its confidence-inspiring and stable platform

More durable and quiet resin compound than previous DB-210 pads

and nutrition without compromising aerodynamics

it’s packed with outstanding features—so you get a rider-friendly rack at an everyone-friendly price

0 offering weight savings

with a hookless bead and impact resistance technology

RPM Cadence sensor

Weight: 84g

This expertly engineered chainguide ensures your chain stays securely in place during aggressive riding and technical terrain

and a premium double-click T-Type Actuation mechanical shifter

especially with its outer plate cut outs and hollow pins that push the strength-to-weight ratio to an unprecedented level