Chain Force D1 Flattop 114Links w/ PowerLock 12 Speed Rear Derailleurs Innovative Smart technology allows fabric

Innovative Smart technology allows fabric to adapt to any condition ensuring a comfortable

so we've increased the rise compared to previous generation extensions

Ultra-thin walls

this running map feels like nothing

Stable Pedaling Platform: External heel cup stabilizes your foot for optimal pedaling position and power transfer

Chain Force D1 Flattop 114Links w/ PowerLock 12 Speed Rear Derailleurs Innovative Smart technology allows fabricUnique link shape creates a lighter, quieter, stronger chain. Flattop technology allows for a narrower chain with quieter operation and increased strength and durability Hard Chrome plated inner and outer plates for faster and more precise shifts 114 or 120 links