Shimano Di2 BTR2 Internal Battery Seat Tube Shim ModelNumber=MRACEFACE53 The next-generation rack design allows

The next-generation rack design allows for a 66% increase in carrying capacity with a maximum load of 22kg to meet the needs of cyclists carrying more equipment during their travels

It provides excellent support and a classic fit

Valve Hybrid Valve Length 60mm

truly independent High and Low Speed Compression along with an increased range of rebound adjustment

Shimano Di2 BTR2 Internal Battery Seat Tube Shim ModelNumber=MRACEFACE53 The next-generation rack design allowsShimano Di2 BTR2 Internal Battery Seat Tube Shim. Shimano Di2 External Battery MountsAll 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