Shimano Ultegra RD-R8150 12-Speed Rear Derailleur Accessories - Heat dissipation paint boosts

- Heat dissipation paint boosts performance

The Shimano GRX Dual Control Lever delivers light and responsive shifting for mixed-terrain riding

REFLECTIVITY : REFLECTIVE

● Patented I

A front suspension fork provides the perfect balance of capability and ease

Shimano Ultegra RD-R8150 12-Speed Rear Derailleur Accessories - Heat dissipation paint boostsThe Fastest Ultegra Shifting To Date Shimano Ultegra RD R8150 12 Speed Rear Derailleur is more versatile than ever thanks to a single cage length option compatible with 11 28, 11 30, and 11 34 cassettes. It also packs the fastest, most precise shifting out there into a more affordable option. This rear derailleur is updated with Shadow technology. Shadow tech is made with a low profile design and single tension construction, so the derailleur does not