Shimano Ultegra RD-R8150 Di2 12 Speed Rear Derailleur SOFTGOODS The 100% natural constituents include

The 100% natural constituents include Melaleuca Alternifolia (Australian Tea Tree) oil which gives antiseptic and aromatic qualities

Comes in 6 different widths to suit most Road

Is 28mm faster than 25mm

BR-RS805-F

Compatible with Ultegra Disc Road

Shimano Ultegra RD-R8150 Di2 12 Speed Rear Derailleur SOFTGOODS The 100% natural constituents includeNow simplified with a single derailleur cage length, the Shimano Ultegra RD R8150 Di2 12 Speed Rear Derailleur packs Shimano's fastest, most precise shifting into a more approachable option. The single cage length is compatible with up to 34T low sprockets, making it more versatile than ever. Specifications Fastest ever rear shifting 58% faster than RD R9150 Compact design includes an integrated wireless unit, charger and switch LED status indicator